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FastBee/docker/data/iotdb/conf/iotdb-system.properties.template

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latest2.7vision
2025-07-07 09:21:15 +08:00
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
####################
### Cluster Configuration
####################
# Used for indicate cluster name and distinguish different cluster.
# If you need to modify the cluster name, it's recommended to use 'set configuration "cluster_name=xxx"' sql.
# Manually modifying configuration file is not recommended, which may cause node restart fail.
# effectiveMode: hot_reload
# Datatype: string
cluster_name=defaultCluster
####################
### Seed ConfigNode
####################
# For the first ConfigNode to start, cn_seed_config_node points to its own cn_internal_address:cn_internal_port.
# For other ConfigNodes that to join the cluster, cn_seed_config_node points to any running ConfigNode's cn_internal_address:cn_internal_port.
# Note: After this ConfigNode successfully joins the cluster for the first time, this parameter is no longer used.
# Each node automatically maintains the list of ConfigNodes and traverses connections when restarting.
# Format: address:port e.g. 127.0.0.1:10710
# effectiveMode: first_start
# Datatype: String
cn_seed_config_node=127.0.0.1:10710
# dn_seed_config_node points to any running ConfigNode's cn_internal_address:cn_internal_port.
# Note: After this DataNode successfully joins the cluster for the first time, this parameter is no longer used.
# Each node automatically maintains the list of ConfigNodes and traverses connections when restarting.
# Format: address:port e.g. 127.0.0.1:10710
# effectiveMode: first_start
# Datatype: String
dn_seed_config_node=127.0.0.1:10710
####################
### Node RPC Configuration
####################
# Used for RPC communication inside cluster.
# Could set 127.0.0.1(for local test) or ipv4 address.
# effectiveMode: first_start
# Datatype: String
cn_internal_address=127.0.0.1
# Used for RPC communication inside cluster.
# effectiveMode: first_start
# Datatype: int
cn_internal_port=10710
# Used for consensus communication among ConfigNodes inside cluster.
# effectiveMode: first_start
# Datatype: int
cn_consensus_port=10720
# Used for connection of IoTDB native clients(Session)
# Could set 127.0.0.1(for local test) or ipv4 address
# effectiveMode: restart
# Datatype: String
dn_rpc_address=0.0.0.0
# Used for connection of IoTDB native clients(Session)
# Bind with dn_rpc_address
# effectiveMode: restart
# Datatype: int
dn_rpc_port=6667
# Used for communication inside cluster.
# could set 127.0.0.1(for local test) or ipv4 address.
# effectiveMode: first_start
# Datatype: String
dn_internal_address=127.0.0.1
# Used for communication inside cluster.
# Bind with dn_internal_address
# effectiveMode: first_start
# Datatype: int
dn_internal_port=10730
# Port for data exchange among DataNodes inside cluster
# Bind with dn_internal_address
# effectiveMode: first_start
# Datatype: int
dn_mpp_data_exchange_port=10740
# port for consensus's communication for schema region inside cluster.
# Bind with dn_internal_address
# effectiveMode: first_start
# Datatype: int
dn_schema_region_consensus_port=10750
# port for consensus's communication for data region inside cluster.
# Bind with dn_internal_address
# effectiveMode: first_start
# Datatype: int
dn_data_region_consensus_port=10760
# The time of data node waiting for the next retry to join into the cluster.
# effectiveMode: restart
# Datatype: long
dn_join_cluster_retry_interval_ms=5000
####################
### Replication configuration
####################
# ConfigNode consensus protocol type.
# This parameter is unmodifiable after ConfigNode starts for the first time.
# These consensus protocols are currently supported:
# 1. org.apache.iotdb.consensus.ratis.RatisConsensus
# 2. org.apache.iotdb.consensus.simple.SimpleConsensus (Only 1 ConfigNode can be deployed)
# effectiveMode: first_start
# Datatype: string
config_node_consensus_protocol_class=org.apache.iotdb.consensus.ratis.RatisConsensus
# Default number of schema replicas
# effectiveMode: first_start
# Datatype: int
schema_replication_factor=1
# SchemaRegion consensus protocol type.
# This parameter is unmodifiable after ConfigNode starts for the first time.
# These consensus protocols are currently supported:
# 1. org.apache.iotdb.consensus.ratis.RatisConsensus
# 2. org.apache.iotdb.consensus.simple.SimpleConsensus (The schema_replication_factor can only be set to 1)
# effectiveMode: first_restart
# Datatype: string
schema_region_consensus_protocol_class=org.apache.iotdb.consensus.ratis.RatisConsensus
# Default number of data replicas
# effectiveMode: first_start
# Datatype: int
data_replication_factor=1
# DataRegion consensus protocol type.
# This parameter is unmodifiable after ConfigNode starts for the first time.
# These consensus protocols are currently supported:
# 1. org.apache.iotdb.consensus.simple.SimpleConsensus (The data_replication_factor can only be set to 1)
# 2. org.apache.iotdb.consensus.iot.IoTConsensus
# 3. org.apache.iotdb.consensus.ratis.RatisConsensus
# effectiveMode: first_start
# Datatype: string
data_region_consensus_protocol_class=org.apache.iotdb.consensus.iot.IoTConsensus
####################
### Directory configuration
####################
# system dir
# If this property is unset, system will save the data in the default relative path directory under the confignode folder(i.e., %CONFIGNODE_HOME%/data/confignode/system).
# If it is absolute, system will save the data in exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the confignode folder.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# cn_system_dir=data\\confignode\\system
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
cn_system_dir=data/confignode/system
# consensus dir
# If this property is unset, system will save the data in the default relative path directory under the confignode folder(i.e., %CONFIGNODE_HOME%/data/confignode/consensus).
# If it is absolute, system will save the data in exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the confignode folder.
# Note: If data_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# cn_consensus_dir=data\\confignode\\consensus
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
cn_consensus_dir=data/confignode/consensus
# cn_pipe_receiver_file_dir
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/${cn_system_dir}/pipe/receiver).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# Note: If cn_pipe_receiver_file_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# cn_pipe_receiver_file_dir=data\\confignode\\system\\pipe\\receiver
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
cn_pipe_receiver_file_dir=data/confignode/system/pipe/receiver
# system dir
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/system).
# If it is absolute, system will save the data in exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_system_dir=data\\datanode\\system
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_system_dir=data/datanode/system
# data dirs
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
# If it is absolute, system will save the data in exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# If there are more than one directory, please separate them by commas ",".
# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: hot_reload
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_data_dirs=data\\datanode\\data
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_data_dirs=data/datanode/data
# multi_dir_strategy
# The strategy is used to choose a directory from data_dirs for the system to store a new tsfile.
# System provides two strategies to choose from, or user can create his own strategy by extending org.apache.iotdb.db.conf.directories.strategy.DirectoryStrategy.
# The info of the two strategies are as follows:
# 1. SequenceStrategy: the system will choose the directory in sequence.
# 2. MaxDiskUsableSpaceFirstStrategy: the system will choose the directory whose disk has the maximum space.
# Set SequenceStrategy or MaxDiskUsableSpaceFirstStrategy to apply the corresponding strategy.
# If this property is unset, system will use SequenceStrategy as default strategy.
# For this property, fully-qualified class name (include package name) and simple class name are both acceptable.
# effectiveMode: hot_reload
# Datatype: String
dn_multi_dir_strategy=SequenceStrategy
# consensus dir
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# Note: If consensus_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_consensus_dir=data\\datanode\\consensus
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_consensus_dir=data/datanode/consensus
# wal dirs
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# If there are more than one directory, please separate them by commas ",".
# Note: If wal_dirs is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_wal_dirs=data\\datanode\\wal
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_wal_dirs=data/datanode/wal
# tracing dir
# Uncomment following fields to configure the tracing root directory.
# effectiveMode: restart
# For Windows platform, the index is as follows:
# dn_tracing_dir=datanode\\tracing
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_tracing_dir=datanode/tracing
# sync dir
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# Note: If sync_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_sync_dir=data\\datanode\\sync
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_sync_dir=data/datanode/sync
# sort_tmp_dir
# This property is used to configure the temporary directory for sorting operation.
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# Note: If sort_tmp_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# sort_tmp_dir=data\\datanode\\tmp
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
sort_tmp_dir=data/datanode/tmp
# dn_pipe_receiver_file_dirs
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/${dn_system_dir}/pipe/receiver).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# If there are more than one directory, please separate them by commas ",".
# Note: If dn_pipe_receiver_file_dirs is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# dn_pipe_receiver_file_dirs=data\\datanode\\system\\pipe\\receiver
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
dn_pipe_receiver_file_dirs=data/datanode/system/pipe/receiver
# pipe_consensus_receiver_file_dirs
# If this property is unset, system will save the data in the default relative path directory under the IoTDB folder(i.e., %IOTDB_HOME%/${dn_system_dir}/pipe/consensus/receiver).
# If it is absolute, system will save the data in the exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the IoTDB folder.
# If there are more than one directory, please separate them by commas ",".
# Note: If pipe_consensus_receiver_file_dirs is assigned an empty string(i.e.,zero-size), it will be handled as a relative path.
# effectiveMode: restart
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute. Otherwise, it is relative.
# pipe_consensus_receiver_file_dirs=data\\datanode\\system\\pipe\\consensus\\receiver
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
pipe_consensus_receiver_file_dirs=data/datanode/system/pipe/consensus/receiver
####################
### Metric Configuration
####################
# The reporters of metric module to report metrics
# If there are more than one reporter, please separate them by commas ",".
# Options: [JMX, PROMETHEUS]
# effectiveMode: restart
# Datatype: String
cn_metric_reporter_list=
# The level of metric module
# Options: [OFF, CORE, IMPORTANT, NORMAL, ALL]
# effectiveMode: restart
# Datatype: String
cn_metric_level=IMPORTANT
# The period of async collection of some metrics in second
# effectiveMode: restart
# Datatype: int
cn_metric_async_collect_period=5
# The port of prometheus reporter of metric module
# effectiveMode: restart
# Datatype: int
cn_metric_prometheus_reporter_port=9091
# The reporters of metric module to report metrics
# If there are more than one reporter, please separate them by commas ",".
# Options: [JMX, PROMETHEUS]
# effectiveMode: restart
# Datatype: String
dn_metric_reporter_list=
# The level of metric module
# Options: [OFF, CORE, IMPORTANT, NORMAL, ALL]
# effectiveMode: restart
# Datatype: String
dn_metric_level=IMPORTANT
# The period of async collection of some metrics in second
# effectiveMode: restart
# Datatype: int
dn_metric_async_collect_period=5
# The port of prometheus reporter of metric module
# effectiveMode: restart
# Datatype: int
dn_metric_prometheus_reporter_port=9092
# The type of internal reporter in metric module, used for checking flushed point number
# Options: [MEMORY, IOTDB]
# effectiveMode: restart
# Datatype: String
dn_metric_internal_reporter_type=MEMORY
####################
### SSL Configuration
####################
# Does dn_rpc_port enable SSL
# effectiveMode: restart
# Datatype: boolean
enable_thrift_ssl=false
# Rest Service enabled SSL
# effectiveMode: restart
# Datatype: boolean
enable_https=false
# SSL key store path
# linux e.g. /home/iotdb/server.keystore (absolute path) or server.keystore (relative path)
# windows e.g. C:\\iotdb\\server.keystore (absolute path) or server.keystore (relative path)
# effectiveMode: restart
key_store_path=
# SSL key store password
# effectiveMode: restart
# Datatype: String
key_store_pwd=
####################
### Connection Configuration
####################
# this feature is under development, set this as false before it is done.
# effectiveMode: restart
# Datatype: boolean
cn_rpc_thrift_compression_enable=false
# The maximum number of concurrent clients that can be connected to the configNode.
# effectiveMode: restart
# Datatype: int
cn_rpc_max_concurrent_client_num=65535
# Thrift socket and connection timeout between raft nodes, in milliseconds.
# effectiveMode: restart
# Datatype: int
cn_connection_timeout_ms=60000
# selector thread (TAsyncClientManager) nums for async thread in a clientManager
# effectiveMode: restart
# Datatype: int
cn_selector_thread_nums_of_client_manager=1
# The maximum number of clients that can be allocated for a node in a clientManager.
# when the number of the client to a single node exceeds this number, the thread for applying for a client will be blocked
# for a while, then ClientManager will throw ClientManagerException if there are no clients after the block time.
# effectiveMode: restart
# Datatype: int
cn_max_client_count_for_each_node_in_client_manager=300
# The maximum session idle time. unit: ms
# Idle sessions are the ones that performs neither query or non-query operations for a period of time
# Set to 0 to disable session timeout
# effectiveMode: first_start
# Datatype: int
dn_session_timeout_threshold=0
# whether enable thrift compression
# effectiveMode: restart
# Datatype: boolean
dn_rpc_thrift_compression_enable=false
# if true, a snappy based compression method will be called before sending data by the network
# effectiveMode: restart
# Datatype: boolean
# this feature is under development, set this as false before it is done.
dn_rpc_advanced_compression_enable=false
# the number of rpc selector
# effectiveMode: restart
# Datatype: int
dn_rpc_selector_thread_count=1
# The min number of concurrent clients that can be connected to the dataNode.
# effectiveMode: restart
# Datatype: int
dn_rpc_min_concurrent_client_num=1
# The maximum number of concurrent clients that can be connected to the dataNode.
# effectiveMode: restart
# Datatype: int
dn_rpc_max_concurrent_client_num=65535
# thrift max frame size, 512MB by default
# effectiveMode: restart
# Datatype: int
dn_thrift_max_frame_size=536870912
# thrift init buffer size
# effectiveMode: restart
# Datatype: int
dn_thrift_init_buffer_size=1024
# Thrift socket and connection timeout between raft nodes, in milliseconds.
# effectiveMode: restart
# Datatype: int
dn_connection_timeout_ms=60000
# selector thread (TAsyncClientManager) nums for async thread in a clientManager
# effectiveMode: restart
# Datatype: int
dn_selector_thread_count_of_client_manager=1
# The maximum number of clients that can be allocated for a node in a clientManager.
# When the number of the client to a single node exceeds this number, the thread for applying for a client will be blocked
# for a while, then ClientManager will throw ClientManagerException if there are no clients after the block time.
# effectiveMode: restart
# Datatype: int
dn_max_client_count_for_each_node_in_client_manager=300
####################
### REST Service Configuration
####################
# Is the REST service enabled
# effectiveMode: restart
# Datatype: boolean
enable_rest_service=false
# the binding port of the REST service
# effectiveMode: restart
# Datatype: int
rest_service_port=18080
# Whether to display rest service interface information through swagger. eg: http://ip:port/swagger.json
# effectiveMode: restart
# Datatype: boolean
enable_swagger=false
# the default row limit to a REST query response when the rowSize parameter is not given in request
# effectiveMode: restart
# Datatype: int
rest_query_default_row_size_limit=10000
# the expiration time of the user login information cache (in seconds)
# effectiveMode: restart
# Datatype: int
cache_expire_in_seconds=28800
# maximum number of users can be stored in the user login cache.
# effectiveMode: restart
# Datatype: int
cache_max_num=100
# init capacity of users can be stored in the user login cache.
# effectiveMode: restart
# Datatype: int
cache_init_num=10
# Is client authentication required
# effectiveMode: restart
# Datatype: boolean
client_auth=false
# SSL trust store path
# effectiveMode: restart
trust_store_path=""
# SSL trust store password.
# effectiveMode: restart
# Datatype: String
trust_store_pwd=""
# SSL timeout (in seconds)
# effectiveMode: restart
# Datatype: int
idle_timeout_in_seconds=50000
####################
### Load balancing configuration
####################
# All parameters in Partition configuration is unmodifiable after ConfigNode starts for the first time.
# And these parameters should be consistent within the ConfigNodeGroup.
# Number of SeriesPartitionSlots per Database
# effectiveMode: first_start
# Datatype: Integer
series_slot_num=1000
# SeriesPartitionSlot executor class
# These hashing algorithms are currently supported:
# 1. BKDRHashExecutor(Default)
# 2. APHashExecutor
# 3. JSHashExecutor
# 4. SDBMHashExecutor
# Also, if you want to implement your own SeriesPartition executor, you can inherit the SeriesPartitionExecutor class and
# modify this parameter to correspond to your Java class
# effectiveMode: first_start
# Datatype: String
series_partition_executor_class=org.apache.iotdb.commons.partition.executor.hash.BKDRHashExecutor
# The policy of extension SchemaRegionGroup for each Database.
# These policies are currently supported:
# 1. CUSTOM(Each Database will allocate schema_region_group_per_database RegionGroups as soon as created)
# 2. AUTO(Each Database will automatically extend SchemaRegionGroups based on the data it has)
# effectiveMode: restart
# Datatype: String
schema_region_group_extension_policy=AUTO
# When set schema_region_group_extension_policy=CUSTOM,
# this parameter is the default number of SchemaRegionGroups for each Database.
# When set schema_region_group_extension_policy=AUTO,
# this parameter is the default minimal number of SchemaRegionGroups for each Database.
# effectiveMode: restart
# Datatype: Integer
default_schema_region_group_num_per_database=1
# Only take effect when set schema_region_group_extension_policy=AUTO.
# This parameter is the maximum number of SchemaRegions expected to be managed by each DataNode.
# Notice: Since each Database requires at least one SchemaRegionGroup to manage its schema,
# this parameter doesn't limit the upper bound of cluster SchemaRegions when there are too many Databases.
# effectiveMode: restart
# Datatype: Double
schema_region_per_data_node=1.0
# The policy of extension DataRegionGroup for each Database.
# These policies are currently supported:
# 1. CUSTOM(Each Database will allocate data_region_group_per_database DataRegionGroups as soon as created)
# 2. AUTO(Each Database will automatically extend DataRegionGroups based on the data it has)
# effectiveMode: restart
# Datatype: String
data_region_group_extension_policy=AUTO
# When set data_region_group_extension_policy=CUSTOM,
# this parameter is the default number of DataRegionGroups for each Database.
# When set data_region_group_extension_policy=AUTO,
# this parameter is the default minimal number of DataRegionGroups for each Database.
# effectiveMode: restart
# Datatype: Integer
default_data_region_group_num_per_database=2
# Only take effect when set data_region_group_extension_policy=AUTO.
# This parameter is the maximum number of DataRegions expected to be managed by each DataNode.
# Notice: Since each Database requires at least two DataRegionGroups to manage its data,
# this parameter doesn't limit the upper bound of cluster DataRegions when there are too many Databases.
# effectiveMode: restart
# Datatype: Double
data_region_per_data_node=5.0
# Whether to enable auto leader balance for Ratis consensus protocol.
# The ConfigNode-leader will balance the leader of Ratis-RegionGroups by leader_distribution_policy if set true.
# Notice: Default is false because the Ratis is unstable for this function.
# effectiveMode: restart
# Datatype: Boolean
enable_auto_leader_balance_for_ratis_consensus=true
# Whether to enable auto leader balance for IoTConsensus protocol.
# The ConfigNode-leader will balance the leader of IoTConsensus-RegionGroups by leader_distribution_policy if set true.
# Notice: Default is true because the IoTConsensus depends on this function to distribute leader.
# effectiveMode: restart
# Datatype: Boolean
enable_auto_leader_balance_for_iot_consensus=true
####################
### Cluster management
####################
# Time partition origin in milliseconds, default is equal to zero.
# This origin is set by default to the beginning of Unix time, which is January 1, 1970, at 00:00 UTC (Coordinated Universal Time).
# This point is known as the Unix epoch, and its timestamp is 0.
# If you want to specify a different time partition origin, you can set this value to a specific Unix timestamp in milliseconds.
# effectiveMode: first_start
# Datatype: long
time_partition_origin=0
# Time partition interval in milliseconds, and partitioning data inside each data region, default is equal to one week
# effectiveMode: first_start
# Datatype: long
time_partition_interval=604800000
# The heartbeat interval in milliseconds, default is 1000ms
# effectiveMode: restart
# Datatype: long
heartbeat_interval_in_ms=1000
# Disk remaining threshold at which DataNode is set to ReadOnly status
# effectiveMode: restart
# Datatype: double(percentage)
disk_space_warning_threshold=0.05
####################
### Memory Control Configuration
####################
# Memory Allocation Ratio: StorageEngine, QueryEngine, SchemaEngine, Consensus, StreamingEngine and Free Memory.
# The parameter form is a:b:c:d:e:f, where a, b, c, d, e and f are integers. for example: 1:1:1:1:1:1 , 6:2:1:1:1:1
# If you have high level of writing pressure and low level of reading pressure, please adjust it to for example 6:1:1:1:1:1
# effectiveMode: restart
datanode_memory_proportion=3:3:1:1:1:1
# Schema Memory Allocation Ratio: SchemaRegion, SchemaCache, and PartitionCache.
# The parameter form is a:b:c, where a, b and c are integers. for example: 1:1:1 , 6:2:1
# effectiveMode: restart
schema_memory_proportion=5:4:1
# Memory allocation ratio in StorageEngine: Write, Compaction
# The parameter form is a:b:c:d, where a, b, c and d are integers. for example: 8:2 , 7:3
# effectiveMode: restart
storage_engine_memory_proportion=8:2
# Memory allocation ratio in writing: Memtable, TimePartitionInfo
# Memtable is the total memory size of all memtables
# TimePartitionInfo is the total memory size of last flush time of all data regions
# effectiveMode: restart
write_memory_proportion=19:1
# primitive array size (length of each array) in array pool
# effectiveMode: restart
# Datatype: int
primitive_array_size=64
# Ratio of compaction memory for chunk metadata maintains in memory when doing compaction
# effectiveMode: restart
# Datatype: double
chunk_metadata_size_proportion=0.1
# Ratio of write memory for invoking flush disk, 0.4 by default
# If you have extremely high write load (like batch=1000), it can be set lower than the default value like 0.2
# effectiveMode: restart
# Datatype: double
flush_proportion=0.4
# Ratio of write memory allocated for buffered arrays, 0.6 by default
# effectiveMode: restart
# Datatype: double
buffered_arrays_memory_proportion=0.6
# Ratio of write memory for rejecting insertion, 0.8 by default
# If you have extremely high write load (like batch=1000) and the physical memory size is large enough,
# it can be set higher than the default value like 0.9
# effectiveMode: restart
# Datatype: double
reject_proportion=0.8
# Ratio of memory for the DevicePathCache. DevicePathCache is the deviceId cache, keep only one copy of the same deviceId in memory
# effectiveMode: restart
# Datatype: double
device_path_cache_proportion=0.05
# If memory cost of data region increased more than proportion of allocated memory for write, report to system. The default value is 0.001
# effectiveMode: restart
# Datatype: double
write_memory_variation_report_proportion=0.001
# When an inserting is rejected, waiting period (in ms) to check system again, 50 by default.
# If the insertion has been rejected and the read load is low, it can be set larger.
# effectiveMode: restart
# Datatype: int
check_period_when_insert_blocked=50
# size of ioTaskQueue. The default value is 10
# effectiveMode: restart
# Datatype: int
io_task_queue_size_for_flushing=10
# If true, we will estimate each query's possible memory footprint before executing it and deny it if its estimated memory exceeds current free memory
# effectiveMode: hot_reload
# Datatype: bool
enable_query_memory_estimation=true
####################
### Schema Engine Configuration
####################
# The schema management mode of schema engine. Currently, support Memory and PBTree.
# This config of all DataNodes in one cluster must keep same.
# effectiveMode: first_start
# Datatype: string
schema_engine_mode=Memory
# cache size for partition.
# This cache is used to improve partition fetch from config node.
# effectiveMode: restart
# Datatype: int
partition_cache_size=1000
# The cycle when metadata log is periodically forced to be written to disk(in milliseconds)
# If sync_mlog_period_in_ms=0 it means force metadata log to be written to disk after each refreshment
# Set this parameter to 0 may slow down the operation on slow disk.
# effectiveMode: restart
# Datatype: int
sync_mlog_period_in_ms=100
# interval num for tag and attribute records when force flushing to disk
# When a certain amount of tag and attribute records is reached, they will be force flushed to disk
# It is possible to lose at most tag_attribute_flush_interval records
# effectiveMode: first_start
# Datatype: int
tag_attribute_flush_interval=1000
# max size for a storage block for tags and attributes of one time series. If the combined size of tags and
# attributes exceeds the tag_attribute_total_size, a new storage block will be allocated to continue storing
# the excess data.
# the unit is byte
# effectiveMode: first_start
# Datatype: int
tag_attribute_total_size=700
# max measurement num of internal request
# When creating timeseries with Session.createMultiTimeseries, the user input plan, the timeseries num of
# which exceeds this num, will be split to several plans with timeseries no more than this num.
# effectiveMode: restart
# Datatype: int
max_measurement_num_of_internal_request=10000
# Policy of DataNodeSchemaCache eviction.
# Support FIFO and LRU policy. FIFO takes low cache update overhead. LRU takes high cache hit rate.
# effectiveMode: restart
# Datatype: int
datanode_schema_cache_eviction_policy=FIFO
# This configuration parameter sets the maximum number of time series allowed in the cluster.
# The value should be a positive integer representing the desired threshold.
# When the threshold is reached, users will be prohibited from creating new time series.
# -1 means unlimited
# effectiveMode: restart
# Datatype: int
cluster_timeseries_limit_threshold=-1
# This configuration parameter sets the maximum number of device allowed in the cluster.
# The value should be a positive integer representing the desired threshold.
# When the threshold is reached, users will be prohibited from creating new time series.
# -1 means unlimited
# effectiveMode: restart
# Datatype: int
cluster_device_limit_threshold=-1
# This configuration parameter sets the maximum number of Cluster Databases allowed.
# The value should be a positive integer representing the desired threshold.
# When the threshold is reached, users will be prohibited from creating new databases.
# -1 means unlimited.
# effectiveMode: restart
# Datatype: int
database_limit_threshold = -1
####################
### Configurations for creating schema automatically
####################
# Whether creating schema automatically is enabled
# If true, then create database and timeseries automatically when not exists in insertion
# Or else, user need to create database and timeseries before insertion.
# effectiveMode: hot_reload
# Datatype: boolean
enable_auto_create_schema=true
# Database level when creating schema automatically is enabled
# e.g. root.sg0.d1.s2
# we will set root.sg0 as the database if database level is 1
# effectiveMode: hot_reload
# Datatype: int
default_storage_group_level=1
# ALL data types: BOOLEAN, INT32, INT64, FLOAT, DOUBLE, TEXT
# register time series as which type when receiving boolean string "true" or "false"
# effectiveMode: hot_reload
# Datatype: TSDataType
# Options: BOOLEAN, TEXT
boolean_string_infer_type=BOOLEAN
# register time series as which type when receiving an integer string and using float or double may lose precision
# effectiveMode: hot_reload
# Datatype: TSDataType
# Options: DOUBLE, FLOAT, INT32, INT64, TEXT
integer_string_infer_type=DOUBLE
# register time series as which type when receiving a floating number string "6.7"
# effectiveMode: hot_reload
# Datatype: TSDataType
# Options: DOUBLE, FLOAT, TEXT
floating_string_infer_type=DOUBLE
# register time series as which type when receiving the Literal NaN.
# effectiveMode: hot_reload
# Datatype: TSDataType
# Options: DOUBLE, FLOAT, TEXT
nan_string_infer_type=DOUBLE
# BOOLEAN encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_boolean_encoding=RLE
# INT32 encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_int32_encoding=TS_2DIFF
# INT64 encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_int64_encoding=TS_2DIFF
# FLOAT encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_float_encoding=GORILLA
# DOUBLE encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_double_encoding=GORILLA
# TEXT encoding when creating schema automatically is enabled
# effectiveMode: hot_reload
# Datatype: TSEncoding
default_text_encoding=PLAIN
####################
### Query Configurations
####################
# The read consistency level
# These consistency levels are currently supported:
# 1. strong(Default, read from the leader replica)
# 2. weak(Read from a random replica)
# effectiveMode: restart
# Datatype: string
read_consistency_level=strong
# Whether to cache meta data(BloomFilter, ChunkMetadata and TimeSeriesMetadata) or not.
# effectiveMode: restart
# Datatype: boolean
meta_data_cache_enable=true
# Read memory Allocation Ratio: BloomFilterCache : ChunkCache : TimeSeriesMetadataCache : Coordinator : Operators : DataExchange : timeIndex in TsFileResourceList : others.
# The parameter form is a:b:c:d:e:f:g:h, where a, b, c, d, e, f, g and h are integers. for example: 1:1:1:1:1:1:1:1 , 1:100:200:50:200:200:200:50
# effectiveMode: restart
chunk_timeseriesmeta_free_memory_proportion=1:100:200:50:200:200:200:50
# Whether to enable LAST cache
# effectiveMode: restart
# Datatype: boolean
enable_last_cache=true
# Core size of ThreadPool of MPP data exchange
# effectiveMode: restart
# Datatype: int
mpp_data_exchange_core_pool_size=10
# Max size of ThreadPool of MPP data exchange
# effectiveMode: restart
# Datatype: int
mpp_data_exchange_max_pool_size=10
# Max waiting time for MPP data exchange
# effectiveMode: restart
# Datatype: int
mpp_data_exchange_keep_alive_time_in_ms=1000
# The max execution time of a DriverTask
# effectiveMode: restart
# Datatype: int, Unit: ms
driver_task_execution_time_slice_in_ms=200
# The max capacity of a TsBlock
# effectiveMode: hot_reload
# Datatype: int, Unit: byte
max_tsblock_size_in_bytes=131072
# The max number of lines in a single TsBlock
# effectiveMode: hot_reload
# Datatype: int
max_tsblock_line_number=1000
# Time cost(ms) threshold for slow query
# effectiveMode: hot_reload
# Datatype: long
slow_query_threshold=10000
# The max executing time of query. unit: ms
# effectiveMode: restart
# Datatype: int
query_timeout_threshold=60000
# The maximum allowed concurrently executing queries
# effectiveMode: restart
# Datatype: int
max_allowed_concurrent_queries=1000
# How many threads can concurrently execute query statement. When <= 0, use CPU core number.
# effectiveMode: restart
# Datatype: int
query_thread_count=0
# How many pipeline drivers will be created for one fragment instance. When <= 0, use CPU core number / 2.
# effectiveMode: restart
# Datatype: int
degree_of_query_parallelism=0
# The threshold of count map size when calculating the MODE aggregation function
# effectiveMode: restart
# Datatype: int
mode_map_size_threshold=10000
# The amount of data iterate each time in server (the number of data strips, that is, the number of different timestamps.)
# effectiveMode: restart
# Datatype: int
batch_size=100000
# The memory for external sort in sort operator, when the data size is smaller than sort_buffer_size_in_bytes, the sort operator will use in-memory sort.
# effectiveMode: restart
# Datatype: long
sort_buffer_size_in_bytes=1048576
# The threshold of operator count in the result set of EXPLAIN ANALYZE, if the number of operator in the result set is larger than this threshold, operator will be merged.
# effectiveMode: hot_reload
# Datatype: int
merge_threshold_of_explain_analyze=10
####################
### TTL Configuration
####################
# The interval of TTL check task in each database. The TTL check task will inspect and select files with a higher volume of expired data for compaction. Default is 2 hours.
# Notice: It is not recommended to change it too small, as it will affect the read and write performance of the system.
# effectiveMode: restart
# Unit: ms
# Datatype: int
ttl_check_interval=7200000
# The maximum expiring time of device which has a ttl. Default is 1 month.
# If the data elapsed time (current timestamp minus the maximum data timestamp of the device in the file) of such devices exceeds this value, then the file will be cleaned by compaction.
# Notice: It is not recommended to change it too small, as it will affect the read and write performance of the system.
# effectiveMode: restart
# Unit: ms
# Datatype: int
max_expired_time=2592000000
# The expired device ratio. If the ratio of expired devices in one file exceeds this value, then expired data of this file will be cleaned by compaction.
# effectiveMode: restart
# Datatype: float
expired_data_ratio=0.3
####################
### Storage Engine Configuration
####################
# Use this value to set timestamp precision as "ms", "us" or "ns".
# Once the precision has been set, it can not be changed.
# effectiveMode: first_start
# Datatype: String
timestamp_precision=ms
# When the timestamp precision check is enabled, the timestamps those are over 13 digits for ms precision, or over 16 digits for us precision are not allowed to be inserted.
# For all precisions, ms, us and ns, the timestamps cannot exceed the range of [-9223372036854775808, 9223372036854775807], regardless of whether the check is enabled or not.
# effectiveMode: first_start
# Datatype: Boolean
timestamp_precision_check_enabled=true
# When the waiting time (in ms) of an inserting exceeds this, throw an exception. 10000 by default.
# If the insertion has been rejected and the read load is low, it can be set larger
# effectiveMode: restart
# Datatype: int
max_waiting_time_when_insert_blocked=10000
# Add a switch to enable separate sequence and unsequence data.
# If it is true, then data will be separated into seq and unseq data dir. If it is false, then all data will be written into unseq data dir.
# effectiveMode: restart
# Datatype: boolean
enable_separate_data=true
# What will the system do when unrecoverable error occurs.
# Datatype: String
# Optional strategies are as follows:
# 1. CHANGE_TO_READ_ONLY: set system status to read-only and the system only accepts query operations.
# 2. SHUTDOWN: the system will be shutdown.
# effectiveMode: restart
handle_system_error=CHANGE_TO_READ_ONLY
# Whether to timed flush sequence tsfiles' memtables.
# effectiveMode: hot_reload
# Datatype: boolean
enable_timed_flush_seq_memtable=true
# If a memTable's last update time is older than current time minus this, the memtable will be flushed to disk.
# Only check sequence tsfiles' memtables.
# The default flush interval is 10 * 60 * 1000. (unit: ms)
# effectiveMode: hot_reload
# Datatype: long
seq_memtable_flush_interval_in_ms=600000
# The interval to check whether sequence memtables need flushing.
# The default flush check interval is 30 * 1000. (unit: ms)
# effectiveMode: hot_reload
# Datatype: long
seq_memtable_flush_check_interval_in_ms=30000
# Whether to timed flush unsequence tsfiles' memtables.
# effectiveMode: hot_reload
# Datatype: boolean
enable_timed_flush_unseq_memtable=true
# If a memTable's last update time is older than current time minus this, the memtable will be flushed to disk.
# Only check unsequence tsfiles' memtables.
# The default flush interval is 10 * 60 * 1000. (unit: ms)
# effectiveMode: hot_reload
# Datatype: long
unseq_memtable_flush_interval_in_ms=600000
# The interval to check whether unsequence memtables need flushing.
# The default flush check interval is 30 * 1000. (unit: ms)
# effectiveMode: hot_reload
# Datatype: long
unseq_memtable_flush_check_interval_in_ms=30000
# The sort algorithms used in the memtable's TVList
# TIM: default tim sort,
# QUICK: quick sort,
# BACKWARD: backward sort
# effectiveMode: restart
tvlist_sort_algorithm=TIM
# When the average point number of timeseries in memtable exceeds this, the memtable is flushed to disk. The default threshold is 100000.
# effectiveMode: restart
# Datatype: int
avg_series_point_number_threshold=100000
# How many threads can concurrently flush. When <= 0, use CPU core number.
# effectiveMode: restart
# Datatype: int
flush_thread_count=0
# In one insert (one device, one timestamp, multiple measurements),
# if enable partial insert, one measurement failure will not impact other measurements
# effectiveMode: restart
# Datatype: boolean
enable_partial_insert=true
# the interval to log recover progress of each vsg when starting iotdb
# effectiveMode: restart
# Datatype: int
recovery_log_interval_in_ms=5000
# If using v0.13 client to insert data, please set this configuration to true.
# Notice: if using v0.13/v1.0 client or setting Client Version to V_0_13 manually, enable this config will disable insert redirection.
# effectiveMode: restart
# Datatype: boolean
0.13_data_insert_adapt=false
# Verify that TSfiles generated by Flush, Load, and Compaction are correct. The following is verified:
# 1. Check whether the file contains a header and a tail
# 2. Check whether files can be deserialized successfully
# 3. Check whether the file contains data
# 4. Whether there is time range overlap between data, whether it is increased, and whether the metadata index offset of the sequence is correct
# effectiveMode: hot_reload
# Datatype: boolean
enable_tsfile_validation=false
# Default tier TTL. When the survival time of the data exceeds the threshold, it will be migrated to the next tier.
# Negative value means the tier TTL is unlimited.
# effectiveMode: restart
# Datatype: long
# Unit: ms
tier_ttl_in_ms=-1
####################
### Compaction Configurations
####################
# sequence space compaction: only compact the sequence files
# effectiveMode: hot_reload
# Datatype: boolean
enable_seq_space_compaction=true
# unsequence space compaction: only compact the unsequence files
# effectiveMode: hot_reload
# Datatype: boolean
enable_unseq_space_compaction=true
# cross space compaction: compact the unsequence files into the overlapped sequence files
# effectiveMode: hot_reload
# Datatype: boolean
enable_cross_space_compaction=true
# enable auto repair unsorted file by compaction
# effectiveMode: hot_reload
# Datatype: boolean
enable_auto_repair_compaction=true
# the selector of cross space compaction task
# effectiveMode: restart
# Options: rewrite
cross_selector=rewrite
# the compaction performer of cross space compaction task
# effectiveMode: restart
# Options: read_point, fast
cross_performer=fast
# the selector of inner sequence space compaction task
# effectiveMode: hot_reload
# Options: size_tiered_single_target,size_tiered_multi_target
inner_seq_selector=size_tiered_multi_target
# the performer of inner sequence space compaction task
# effectiveMode: restart
# Options: read_chunk, fast
inner_seq_performer=read_chunk
# the selector of inner unsequence space compaction task
# effectiveMode: hot_reload
# Options: size_tiered_single_target,size_tiered_multi_target
inner_unseq_selector=size_tiered_multi_target
# the performer of inner unsequence space compaction task
# effectiveMode: restart
# Options: read_point, fast
inner_unseq_performer=fast
# The priority of compaction execution
# INNER_CROSS: prioritize inner space compaction, reduce the number of files first
# CROSS_INNER: prioritize cross space compaction, eliminate the unsequence files first
# BALANCE: alternate two compaction types
# effectiveMode: restart
compaction_priority=INNER_CROSS
# The size of candidate compaction task queue.
# effectiveMode: restart
# Datatype: int
candidate_compaction_task_queue_size=50
# This parameter is used in two places:
# 1. The target tsfile size of inner space compaction.
# 2. The candidate size of seq tsfile in cross space compaction will be smaller than target_compaction_file_size * 1.5.
# In most cases, the target file size of cross compaction won't exceed this threshold, and if it does, it will not be much larger than it.
# default is 2GB
# effectiveMode: hot_reload
# Datatype: long, Unit: byte
target_compaction_file_size=2147483648
# The total file size limit in inner space compaction.
# default is 10GB
# effectiveMode: hot_reload
# Datatype: long, Unit: byte
inner_compaction_total_file_size_threshold=10737418240
# The total file num limit in inner space compaction.
# default is 100
# effectiveMode: hot_reload
# Datatype: int
inner_compaction_total_file_num_threshold=100
# The max level gap in inner compaction selection, default is 2.
# effectiveMode: hot_reload
# Datatype: int
max_level_gap_in_inner_compaction=2
# The target chunk size in compaction and when memtable reaches this threshold, flush the memtable to disk.
# default is 1MB
# effectiveMode: restart
# Datatype: long, Unit: byte
target_chunk_size=1048576
# The target point nums in one chunk in compaction
# effectiveMode: restart
# Datatype: long
target_chunk_point_num=100000
# If the chunk size is lower than this threshold, it will be deserialized into points, default is 128 byte
# effectiveMode: restart
# Datatype: long, Unit:byte
chunk_size_lower_bound_in_compaction=128
# If the chunk point num is lower than this threshold, it will be deserialized into points
# effectiveMode: restart
# Datatype: long
chunk_point_num_lower_bound_in_compaction=100
# The file num requirement when selecting inner space compaction candidate files
# effectiveMode: hot_reload
# Datatype: int
inner_compaction_candidate_file_num=30
# The max file when selecting cross space compaction candidate files
# At least one unseq file with it's overlapped seq files will be selected even exceeded this number
# effectiveMode: hot_reload
# Datatype: int
max_cross_compaction_candidate_file_num=500
# The max total size when selecting cross space compaction candidate files
# At least one unseq file with it's overlapped seq files will be selected even exceeded this number
# effectiveMode: hot_reload
# Datatype: long, Unit: byte
max_cross_compaction_candidate_file_size=5368709120
# The min inner compaction level of unsequence file which can be selected as candidate
# effectiveMode: hot_reload
# Datatype: int
min_cross_compaction_unseq_file_level=1
# How many threads will be set up to perform compaction, 10 by default.
# Set to 1 when less than or equal to 0.
# effectiveMode: hot_reload
# Datatype: int
compaction_thread_count=10
# How many chunk will be compacted in aligned series compaction, 10 by default.
# Set to Integer.MAX_VALUE when less than or equal to 0.
# effectiveMode: hot_reload
# Datatype: int
compaction_max_aligned_series_num_in_one_batch=10
# The interval of compaction task schedule
# effectiveMode: restart
# Datatype: long, Unit: ms
compaction_schedule_interval_in_ms=60000
# The limit of write throughput merge can reach per second
# values less than or equal to 0 means no limit
# effectiveMode: hot_reload
# Datatype: int, Unit: megabyte
compaction_write_throughput_mb_per_sec=16
# The limit of read throughput merge can reach per second
# values less than or equal to 0 means no limit
# effectiveMode: hot_reload
# Datatype: int, Unit: megabyte
compaction_read_throughput_mb_per_sec=0
# The limit of read operation merge can reach per second
# values less than or equal to 0 means no limit
# effectiveMode: hot_reload
# Datatype: int
compaction_read_operation_per_sec=0
# The number of sub compaction threads to be set up to perform compaction.
# Currently only works for nonAligned data in cross space compaction and unseq inner space compaction.
# Set to 1 when less than or equal to 0.
# effectiveMode: hot_reload
# Datatype: int
sub_compaction_thread_count=4
# Redundancy value of disk availability, only use for inner compaction.
# When disk availability is lower than the sum of (disk_space_warning_threshold + inner_compaction_task_selection_disk_redundancy), inner compaction tasks containing mods files are selected first.
# effectiveMode: hot_reload
# DataType: double
inner_compaction_task_selection_disk_redundancy=0.05
# Mods file size threshold, only use for inner compaction.
# When the size of the mods file corresponding to TsFile exceeds this value, inner compaction tasks containing mods files are selected first.
# effectiveMode: hot_reload
# DataType: long
inner_compaction_task_selection_mods_file_threshold=131072
# The number of threads to be set up to select compaction task.
# effectiveMode: hot_reload
# Datatype: int
compaction_schedule_thread_num=4
####################
### Write Ahead Log Configuration
####################
# Write mode of wal
# The details of these three modes are as follows:
# 1. DISABLE: the system will disable wal.
# 2. SYNC: the system will submit wal synchronously, write request will not return until its wal is fsynced to the disk successfully.
# 3. ASYNC: the system will submit wal asynchronously, write request will return immediately no matter its wal is fsynced to the disk successfully.
# The write performance order is DISABLE > ASYNC > SYNC, but only SYNC mode can ensure data durability.
# effectiveMode: restart
wal_mode=ASYNC
# Max number of wal nodes, each node corresponds to one wal directory
# This parameter is only valid in the standalone mode. IoTConsensus uses one wal per data region and RatisConsensus doesn't use wal.
# The default value 0 means the number is determined by the system, the number is in the range of [data region num / 2, data region num].
# Notice: this value affects write performance significantly.
# For non-SSD disks, values between one third and half of databases number are recommended.
# effectiveMode: restart
# Datatype: int
max_wal_nodes_num=0
# Duration a wal flush operation will wait before calling fsync in the async mode
# A duration greater than 0 batches multiple wal fsync calls into one. This is useful when disks are slow or WAL write contention exists.
# Notice: this value affects write performance significantly, values in the range of 10ms-2000ms are recommended.
# effective: hot_reload
# Datatype: long
wal_async_mode_fsync_delay_in_ms=1000
# Duration a wal flush operation will wait before calling fsync in the sync mode
# A duration greater than 0 batches multiple wal fsync calls into one. This is useful when disks are slow or WAL write contention exists.
# Notice: this value affects write performance significantly, values in the range of 0ms-10ms are recommended.
# effective: hot_reload
# Datatype: long
wal_sync_mode_fsync_delay_in_ms=3
# Buffer size of each wal node
# If it's a value smaller than 0, use the default value 32 * 1024 * 1024 bytes (32MB).
# effectiveMode: restart
# Datatype: int
wal_buffer_size_in_byte=33554432
# Blocking queue capacity of each wal buffer, restricts maximum number of WALEdits cached in the blocking queue.
# effectiveMode: restart
# Datatype: int
wal_buffer_queue_capacity=500
# Size threshold of each wal file
# When a wal file's size exceeds this, the wal file will be closed and a new wal file will be created.
# If it's a value smaller than 0, use the default value 30 * 1024 * 1024 (30MB).
# effectiveMode: hot_reload
# Datatype: long
wal_file_size_threshold_in_byte=31457280
# Minimum ratio of effective information in wal files
# This value should be between 0.0 and 1.0
# If effective information ratio is below this value, MemTable snapshot or flush will be triggered.
# Increase this value when wal occupies too much disk space. But, if this parameter is too large, the write performance may decline.
# effectiveMode: hot_reload
# Datatype: double
wal_min_effective_info_ratio=0.1
# MemTable size threshold for triggering MemTable snapshot in wal
# When a memTable's size (in byte) exceeds this, wal can flush this memtable to disk, otherwise wal will snapshot this memtable in wal.
# If it's a value smaller than 0, use the default value 8 * 1024 * 1024 bytes (8MB).
# effectiveMode: hot_reload
# Datatype: long
wal_memtable_snapshot_threshold_in_byte=8388608
# MemTable's max snapshot number in wal
# If one memTable's snapshot number in wal exceeds this value, it will be flushed to disk.
# effectiveMode: hot_reload
# Datatype: int
max_wal_memtable_snapshot_num=1
# The period when outdated wal files are periodically deleted
# If this value is too large, outdated wal files may not able to be deleted in time.
# If it's a value smaller than 0, use the default value 20 * 1000 ms (20 seconds).
# effectiveMode: hot_reload
# Datatype: long
delete_wal_files_period_in_ms=20000
# The minimum size of wal files when throttle down in IoTConsensus
# If this value is not set, it will be carefully chosen according to the available disk space.
# If this value is set smaller than 0, it will default to 50 * 1024 * 1024 * 1024 bytes (50GB).
# effectiveMode: hot_reload
# Datatype: long
wal_throttle_threshold_in_byte=53687091200
# Maximum wait time of write cache in IoTConsensus
# If this value is less than or equal to 0, use the default value 10 * 1000 ms (10s)
# effectiveMode: hot_reload
# Datatype: long
iot_consensus_cache_window_time_in_ms=-1
# Enable Write Ahead Log compression.
# With this parameter enabled, IoTDB can save a lot of IO resources at the cost of a small amount
# of additional CPU resources, which is generally suitable for the scenario
# where CPU is not the bottleneck but IO is the bottleneck.
# effectiveMode: hot_reload
# Datatype: boolean
enable_wal_compression=true
####################
### IoTConsensus Configuration
####################
# The maximum log entries num in IoTConsensus Batch
# effectiveMode: hot_reload
# Datatype: int
data_region_iot_max_log_entries_num_per_batch = 1024
# The maximum size in IoTConsensus Batch
# effectiveMode: hot_reload
# Datatype: int
data_region_iot_max_size_per_batch = 16777216
# The maximum pending batches num in IoTConsensus
# effectiveMode: hot_reload
# Datatype: int
data_region_iot_max_pending_batches_num = 5
# The maximum memory ratio for queue in IoTConsensus
# effectiveMode: hot_reload
# Datatype: double
data_region_iot_max_memory_ratio_for_queue = 0.6
# The maximum transit size in byte per second for region migration
# values less than or equal to 0 means no limit
# effectiveMode: hot_reload
# Datatype: long
region_migration_speed_limit_bytes_per_second = 33554432
####################
### TsFile Configurations
####################
# The maximum number of bytes written to disk each time the data in memory is written to disk
# effectiveMode: hot_reload
# Datatype: int
group_size_in_byte=134217728
# The memory size for each series writer to pack page, default value is 64KB
# effectiveMode: hot_reload
# Datatype: int
page_size_in_byte=65536
# The maximum number of data points in a page, default 10000
# effectiveMode: hot_reload
# Datatype: int
max_number_of_points_in_page=10000
# The threshold for pattern matching in regex
# effectiveMode: restart
# Datatype: int
pattern_matching_threshold=1000000
# Floating-point precision of query results.
# Only effective for RLE and TS_2DIFF encodings.
# Due to the limitation of machine precision, some values may not be interpreted strictly.
# E.g.: 1.111111 with precision=3 will be shown as 1.11100001
# effectiveMode: hot_reload
# Datatype: int
float_precision=2
# Encoder of value series. default value is PLAIN.
# For int, long data type, also supports TS_2DIFF and RLE(run-length encoding), GORILLA and ZIGZAG.
# effectiveMode: hot_reload
value_encoder=PLAIN
# Compression configuration
# Data compression method, supports UNCOMPRESSED, SNAPPY, ZSTD, LZMA2 or LZ4. Default value is LZ4
# And it is also used as the default compressor of time column in aligned timeseries.
# effectiveMode: hot_reload
compressor=LZ4
####################
### Authorization Configuration
####################
# which class to serve for authorization. By default, it is LocalFileAuthorizer.
# Another choice is org.apache.iotdb.commons.auth.authorizer.OpenIdAuthorizer
# effectiveMode: restart
authorizer_provider_class=org.apache.iotdb.commons.auth.authorizer.LocalFileAuthorizer
# If OpenIdAuthorizer is enabled, then openID_url must be set.
# effectiveMode: restart
openID_url=
# encryption provider class
# effectiveMode: first_start
iotdb_server_encrypt_decrypt_provider=org.apache.iotdb.commons.security.encrypt.MessageDigestEncrypt
# encryption provided class parameter
# effectiveMode: first_start
iotdb_server_encrypt_decrypt_provider_parameter=
# Cache size of user and role
# effectiveMode: restart
# Datatype: int
author_cache_size=1000
# Cache expire time of user and role
# effectiveMode: restart
# Datatype: int
author_cache_expire_time=30
####################
### UDF Configuration
####################
# Used to estimate the memory usage of text fields in a UDF query.
# It is recommended to set this value to be slightly larger than the average length of all text
# records.
# effectiveMode: restart
# Datatype: int
udf_initial_byte_array_length_for_memory_control=48
# How much memory may be used in ONE UDF query (in MB).
# The upper limit is 20% of allocated memory for read.
# effectiveMode: restart
# Datatype: float
udf_memory_budget_in_mb=30.0
# UDF memory allocation ratio.
# The parameter form is a:b:c, where a, b, and c are integers.
# effectiveMode: restart
udf_reader_transformer_collector_memory_proportion=1:1:1
# UDF lib dir
# If this property is unset, system will save the data in the default relative path directory under
# the UDF folder(i.e., %CONFIGNODE_HOME%/ext/udf).
#
# If it is absolute, system will save the data in exact location it points to.
# If it is relative, system will save the data in the relative path directory it indicates under the
# UDF folder.
# Note: If data_dir is assigned an empty string(i.e.,zero-size), it will be handled as a relative
# path.
# effectiveMode: restart
# For Windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is
# absolute. Otherwise, it is relative.
# udf_lib_dir=ext\\udf
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
udf_lib_dir=ext/udf
####################
### Trigger Configuration
####################
# Uncomment the following field to configure the trigger lib directory.
# effectiveMode: restart
# For Windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is
# absolute. Otherwise, it is relative.
# trigger_lib_dir=ext\\trigger
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
trigger_lib_dir=ext/trigger
# How many times will we retry to found an instance of stateful trigger on DataNodes
# 3 by default.
# effectiveMode: restart
# Datatype: int
stateful_trigger_retry_num_when_not_found=3
####################
### Select-Into Configuration
####################
# The maximum memory occupied by the data to be written when executing select-into statements.
# effectiveMode: hot_reload
# Datatype: long
into_operation_buffer_size_in_byte=104857600
# The maximum number of rows can be processed in insert-tablet-plan when executing select-into statements.
# When <= 0, use 10000.
# effectiveMode: hot_reload
# Datatype: int
select_into_insert_tablet_plan_row_limit=10000
# The number of threads in the thread pool that execute insert-tablet tasks
# effectiveMode: restart
# Datatype: int
into_operation_execution_thread_count=2
####################
### Continuous Query Configuration
####################
# The number of threads in the scheduled thread pool that submit continuous query tasks periodically
# effectiveMode: restart
# Datatype: int
continuous_query_submit_thread_count=2
# The minimum value of the continuous query execution time interval
# effectiveMode: restart
# Datatype: long(duration)
continuous_query_min_every_interval_in_ms=1000
####################
### Pipe Configuration
####################
# Uncomment the following field to configure the pipe lib directory.
# effectiveMode: first_start
# For Windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is
# absolute. Otherwise, it is relative.
# pipe_lib_dir=ext\\pipe
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
pipe_lib_dir=ext/pipe
# The maximum number of threads that can be used to execute the pipe subtasks in PipeSubtaskExecutor.
# The actual value will be min(pipe_subtask_executor_max_thread_num, max(1, CPU core number / 2)).
# effectiveMode: restart
# Datatype: int
pipe_subtask_executor_max_thread_num=5
# The connection timeout (in milliseconds) for the thrift client.
# effectiveMode: restart
# Datatype: int
pipe_sink_timeout_ms=900000
# The maximum number of selectors that can be used in the sink.
# Recommend to set this value to less than or equal to pipe_sink_max_client_number.
# effectiveMode: restart
# Datatype: int
pipe_sink_selector_number=4
# The maximum number of clients that can be used in the sink.
# effectiveMode: restart
# Datatype: int
pipe_sink_max_client_number=16
# Whether to enable receiving pipe data through air gap.
# The receiver can only return 0 or 1 in tcp mode to indicate whether the data is received successfully.
# effectiveMode: restart
# Datatype: Boolean
pipe_air_gap_receiver_enabled=false
# The port for the server to receive pipe data through air gap.
# Datatype: int
# effectiveMode: restart
pipe_air_gap_receiver_port=9780
# The total bytes that all pipe sinks can transfer per second.
# When given a value less than or equal to 0, it means no limit.
# default value is -1, which means no limit.
# effectiveMode: hot_reload
# Datatype: double
pipe_all_sinks_rate_limit_bytes_per_second=-1
####################
### RatisConsensus Configuration
####################
# max payload size for a single log-sync-RPC from leader to follower(in byte, by default 16MB)
# effectiveMode: restart
# Datatype: int
config_node_ratis_log_appender_buffer_size_max=16777216
schema_region_ratis_log_appender_buffer_size_max=16777216
data_region_ratis_log_appender_buffer_size_max=16777216
# trigger a snapshot when snapshot_trigger_threshold logs are written
# effectiveMode: restart
# Datatype: int
config_node_ratis_snapshot_trigger_threshold=400000
schema_region_ratis_snapshot_trigger_threshold=400000
data_region_ratis_snapshot_trigger_threshold=400000
# allow flushing Raft Log asynchronously
# effectiveMode: restart
# Datatype: Boolean
config_node_ratis_log_unsafe_flush_enable=false
schema_region_ratis_log_unsafe_flush_enable=false
data_region_ratis_log_unsafe_flush_enable=false
# max capacity of a single Log segment file (in byte, by default 24MB)
# effectiveMode: restart
# Datatype: int
config_node_ratis_log_segment_size_max_in_byte=25165824
schema_region_ratis_log_segment_size_max_in_byte=25165824
data_region_ratis_log_segment_size_max_in_byte=25165824
config_node_simple_consensus_log_segment_size_max_in_byte=25165824
# flow control window for ratis grpc log appender
# effectiveMode: restart
# Datatype: int
config_node_ratis_grpc_flow_control_window=4194304
schema_region_ratis_grpc_flow_control_window=4194304
data_region_ratis_grpc_flow_control_window=4194304
config_node_ratis_grpc_leader_outstanding_appends_max=128
schema_region_ratis_grpc_leader_outstanding_appends_max=128
data_region_ratis_grpc_leader_outstanding_appends_max=128
config_node_ratis_log_force_sync_num=128
schema_region_ratis_log_force_sync_num=128
data_region_ratis_log_force_sync_num=128
# min election timeout for leader election
# effectiveMode: restart
# Datatype: int
config_node_ratis_rpc_leader_election_timeout_min_ms=2000
schema_region_ratis_rpc_leader_election_timeout_min_ms=2000
data_region_ratis_rpc_leader_election_timeout_min_ms=2000
# max election timeout for leader election
# effectiveMode: restart
# Datatype: int
config_node_ratis_rpc_leader_election_timeout_max_ms=4000
schema_region_ratis_rpc_leader_election_timeout_max_ms=4000
data_region_ratis_rpc_leader_election_timeout_max_ms=4000
# ratis client retry threshold
# effectiveMode: restart
# Datatype: int
config_node_ratis_request_timeout_ms=10000
schema_region_ratis_request_timeout_ms=10000
data_region_ratis_request_timeout_ms=10000
# currently we use exponential back-off retry policy for ratis
# effectiveMode: restart
# Datatype: int
config_node_ratis_max_retry_attempts=10
config_node_ratis_initial_sleep_time_ms=100
config_node_ratis_max_sleep_time_ms=10000
schema_region_ratis_max_retry_attempts=10
schema_region_ratis_initial_sleep_time_ms=100
schema_region_ratis_max_sleep_time_ms=10000
data_region_ratis_max_retry_attempts=10
data_region_ratis_initial_sleep_time_ms=100
data_region_ratis_max_sleep_time_ms=10000
# first election timeout
# effectiveMode: restart
# Datatype: int
ratis_first_election_timeout_min_ms=50
ratis_first_election_timeout_max_ms=150
# preserve certain logs when take snapshot and purge
# effectiveMode: restart
# Datatype: int
config_node_ratis_preserve_logs_num_when_purge=1000
schema_region_ratis_preserve_logs_num_when_purge=1000
data_region_ratis_preserve_logs_num_when_purge=1000
# Raft Log disk size control
# effectiveMode: restart
# Datatype: int
config_node_ratis_log_max_size = 2147483648
schema_region_ratis_log_max_size = 2147483648
data_region_ratis_log_max_size = 21474836480
# Raft periodic snapshot interval, time unit is second
# effectiveMode: restart
# Datatype: int
config_node_ratis_periodic_snapshot_interval=86400
schema_region_ratis_periodic_snapshot_interval=86400
data_region_ratis_periodic_snapshot_interval=86400
####################
### Fast IoTConsensus Configuration
####################
# Default event buffer size for connector and receiver in pipe consensus
# effectiveMode: hot_reload
# DataType: int
fast_iot_consensus_pipeline_size=5
####################
### Procedure Configuration
####################
# Default number of worker thread count
# effectiveMode: restart
# Datatype: int
procedure_core_worker_thread_count=4
# Default time interval of completed procedure cleaner work in, time unit is second
# effectiveMode: restart
# Datatype: int
procedure_completed_clean_interval=30
# Default ttl of completed procedure, time unit is second
# effectiveMode: restart
# Datatype: int
procedure_completed_evict_ttl=60
####################
### MQTT Broker Configuration
####################
# whether to enable the mqtt service.
# effectiveMode: restart
# Datatype: boolean
enable_mqtt_service=false
# the mqtt service binding host.
# effectiveMode: restart
# Datatype: String
mqtt_host=127.0.0.1
# the mqtt service binding port.
# effectiveMode: restart
# Datatype: int
mqtt_port=1883
# the handler pool size for handing the mqtt messages.
# effectiveMode: restart
# Datatype: int
mqtt_handler_pool_size=1
# the mqtt message payload formatter.
# effectiveMode: restart
# Datatype: String
mqtt_payload_formatter=json
# max length of mqtt message in byte
# effectiveMode: restart
# Datatype: int
mqtt_max_message_size=1048576
####################
### IoTDB-AI Configuration
####################
# The thread count which can be used for model inference operation.
# effectiveMode: restart
# Datatype: int
model_inference_execution_thread_count=5
####################
### Load TsFile Configuration
####################
# Load clean up task is used to clean up the unsuccessful loaded tsfile after a certain period of time.
# The parameter is the delay time after an unsuccessful load operation (in seconds).
# effectiveMode: hot_reload
# Datatype: int
load_clean_up_task_execution_delay_time_seconds=1800
# The maximum bytes per second of disk write throughput when loading tsfile.
# When given a value less than or equal to 0, it means no limit.
# Default value is -1, which means no limit.
# effectiveMode: hot_reload
# Datatype: int
load_write_throughput_bytes_per_second=-1
# Whether to enable the active listening mode for tsfile loading.
# effectiveMode: hot_reload
# Datatype: Boolean
load_active_listening_enable=true
# The directory to be actively listened for tsfile loading.
# Multiple directories should be separated by a ','.
# The default directory is 'ext/load/pending'.
# effectiveMode: hot_reload
# Datatype: String
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute.
# Otherwise, it is relative.
# load_active_listening_dirs=ext\\load\\pending
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
load_active_listening_dirs=ext/load/pending
# The directory where tsfile are moved if the active listening mode fails to load them.
# Only one directory can be configured.
# effectiveMode: hot_reload
# Datatype: String
# For windows platform
# If its prefix is a drive specifier followed by "\\", or if its prefix is "\\\\", then the path is absolute.
# Otherwise, it is relative.
# load_active_listening_fail_dir=ext\\load\\failed
# For Linux platform
# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
load_active_listening_fail_dir=ext/load/failed
# The maximum number of threads that can be used to load tsfile actively.
# The default value, when this parameter is commented out or <= 0, use CPU core number.
# effectiveMode: restart
# Datatype: int
load_active_listening_max_thread_num=0
# The interval specified in seconds for the active listening mode to check the directory specified in load_active_listening_dirs.
# The active listening mode will check the directory every load_active_listening_check_interval_seconds seconds.
# effectiveMode: restart
# Datatype: int
load_active_listening_check_interval_seconds=5
####################
### Dispatch Retry Configuration
####################
# The maximum retrying time for write request remotely dispatching, time unit is milliseconds.
# It only takes effect for write request remotely dispatching, not including locally dispatching and query
# Set to 0 or negative number to disable remote dispatching write request retrying
# We will sleep for some time between each retry, 100ms, 200ms, 400ms, 800ms and so on, util reaching 20,000ms, we won't increase the sleeping time any more
# effectiveMode: hot_reload
# Datatype: long
write_request_remote_dispatch_max_retry_duration_in_ms=60000
# Whether retrying for unknown errors.
# Current unknown errors includes EXECUTE_STATEMENT_ERROR(301) and INTERNAL_SERVER_ERROR(305)
# effectiveMode: hot_reload
# Datatype: boolean
enable_retry_for_unknown_error=false
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