Node Configuration Parameters

Node configuration is individual for each node and is not shared across the whole cluster.

In GridGain 9, you can create and maintain configuration in either HOCON or JSON. The configuration file has a single root "node," called ignite. All configuration sections are children, grandchildren, etc., of that node.

Checking Node Configuration

To get node configuration, use the CLI tool.

Start the CLI tool and connect to the node.
Run the node config show command.

The CLI tool will print the full node configuration. If you only need a part of the configuration, you can narrow down the search by providing the properties you need as the command argument, for example:

node config show ignite.clientConnector

Changing Node Configuration

Node configuration is changed from the CLI tool. To change the configuration:

Start the CLI tool and connect to the node. This becomes the "default" node for subsequent CL commands.
To update the default node’s configuration, run the node config update command and provide the update as the command argument, for example:
```
node config update ignite.clientConnector.connectTimeout=10000
```
To update the configuration of a node other than the default one, run the node config update command with the target node explicitly specified. For example, for node named node1:
```
node config update -n node1 ignite.nodeAttributes.nodeAttributes={clientConnector.attribute="10900"}
```
Restart the node to apply the configuration changes.

Exporting Node Configuration

If you need to export node configuration to a HOCON-formatted file, use the following command:

bin/gridgain9 node config show > node-config.conf

Configuration Parameters

Client Connector Configuration

See the Clients section for information on configuring client connector.

Compute Configuration

{
  "ignite" : {
    "compute" : {
      "queueMaxSize" : 2147483647,
      "statesLifetimeMillis" : 60000,
      "threadPoolSize" : 10,
      "threadPoolStopTimeoutMillis" : 10000
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
queueMaxSize	2147483647	Maximum number of compute tasks in queue.	Yes	Yes	1 - Integer.MAX_VALUE
statesLifetimeMillis	60000	The lifetime of job states after the job finishes, in milliseconds.	Yes	Yes	0 - inf
threadPoolSize	10	The number of threads available to compute jobs.	Yes	Yes	1 - Integer.MAX_VALUE
threadPoolStopTimeoutMillis	10000	Job thread pool stop timeout, in milliseconds.	Yes	Yes	1 - inf

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

queueMaxSize

2147483647

Maximum number of compute tasks in queue.

Yes

1 - Integer.MAX_VALUE

statesLifetimeMillis

60000

The lifetime of job states after the job finishes, in milliseconds.

Yes

0 - inf

threadPoolSize

The number of threads available to compute jobs.

Yes

1 - Integer.MAX_VALUE

threadPoolStopTimeoutMillis

10000

Job thread pool stop timeout, in milliseconds.

Yes

1 - inf

Critical Workers Configuration

{
  "ignite" : {
    "criticalWorkers" : {
      "livenessCheckInterval" : 200,
      "maxAllowedLag" : 500,
      "nettyThreadsHeartbeatInterval" : 100
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
livenessCheckInterval	200	Interval between liveness checks (ms) performed by the critical worker infrastructure.	Yes	Yes	1 - inf (not greater than half of maxAllowedLag)
maxAllowedLag	500	Maximum allowed delay from the last heartbeat to the current time (ms). If exceeded, the critical worker is considered to be blocked.	Yes	No	1 - inf (should be at least twice livenessCheckInterval)
nettyThreadsHeartbeatInterval	100	Interval between heartbeats used to update the Netty threads' heartbeat timestamps (ms).	Yes	Yes	1 - inf

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

livenessCheckInterval

200

Interval between liveness checks (ms) performed by the critical worker infrastructure.

Yes

1 - inf (not greater than half of maxAllowedLag)

maxAllowedLag

500

Maximum allowed delay from the last heartbeat to the current time (ms). If exceeded, the critical worker is considered to be blocked.

Yes

1 - inf (should be at least twice livenessCheckInterval)

nettyThreadsHeartbeatInterval

100

Interval between heartbeats used to update the Netty threads' heartbeat timestamps (ms).

Yes

1 - inf

Code Deployment Configuration

{
  "ignite" : {
    "deployment" : {
      "deploymentLocation" : "deployment"
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
deploymentLocation	deployment	Relative path to folder in the working directory. All deployment units content will be stored there.	Yes	No	A valid path

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

deploymentLocation

deployment

Relative path to folder in the working directory. All deployment units content will be stored there.

Yes

A valid path

Eviction Configuration

{
  "ignite" : {
    "eviction" : {
      "checkFrequency" : 600000,
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
checkInterval	60000	How often the data is checked for eviction threshold, in milliseconds.	Yes	Yes	1 - inf

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

checkInterval

60000

How often the data is checked for eviction threshold, in milliseconds.

Yes

1 - inf

Expiration Configuration

{
  "ignite" : {
    "expiration" : {
      "batchSize" : 1000,
      "checkFrequency" : 600000,
      "parallelismLevel" : 1
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
batchSize	1000	The number of items that can be expired at once.	Yes	Yes	1 - inf
checkInterval	600000	How often the data is checked for expiration, in milliseconds.	Yes	Yes	1 - inf
parallelismLevel	1	The number of threads used for data expiry.	Yes	Yes	1 - 1 - Integer.MAX_VALUE

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

batchSize

1000

The number of items that can be expired at once.

Yes

1 - inf

checkInterval

600000

How often the data is checked for expiration, in milliseconds.

Yes

1 - inf

parallelismLevel

The number of threads used for data expiry.

Yes

1 - 1 - Integer.MAX_VALUE

Network Configuration

{
  "ignite" : {
    "network" : {
      "fileTransfer" : {
        "chunkSize" : 1048576,
        "maxConcurrentRequests" : 4,
        "responseTimeout" : 10000,
        "threadPoolSize" : 8
      },
      "inbound" : {
        "soBacklog" : 128,
        "soKeepAlive" : true,
        "soLinger" : 0,
        "soReuseAddr" : true,
        "tcpNoDelay" : true
      },
      "listenAddress" : "",
      "membership" : {
        "failurePingInterval" : 1000,
        "membershipSyncInterval" : 30000,
        "scaleCube" : {
          "failurePingRequestMembers" : 3,
          "gossipInterval" : 200,
          "gossipRepeatMult" : 3,
          "membershipSuspicionMultiplier" : 5,
          "metadataTimeout" : 3000
        }
      },
      "nodeFinder" : {
        "netClusterNodes" : [ "localhost:3344" ],
        "type" : "STATIC"
      },
      "outbound" : {
        "soKeepAlive" : true,
        "soLinger" : 0,
        "tcpNoDelay" : true
      },
      "port" : 3344,
      "shutdownQuietPeriod" : 0,
      "shutdownTimeout" : 15000,
      "ssl" : {
        "ciphers" : "",
        "clientAuth" : "none",
        "enabled" : false,
        "keyStore" : {
          "password" : "********",
          "path" : "",
          "type" : "PKCS12"
        },
        "trustStore" : {
          "password" : "********",
          "path" : "",
          "type" : "PKCS12"
        }
      }
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
fileTransfer		File transfer configuration.
fileTransfer.chunkSize	1048576	Chunk size in bytes.	Yes	Yes	1 - 1 - Integer.MAX_VALUE
fileTransfer.maxConcurrentRequests	4	Maximum number of concurrent requests.	Yes	Yes	1 - Integer.MAX_VALUE
fileTransfer.responseTimeout	10000	Node response timeout during file transfer.	Yes	Yes	0 - inf
fileTransfer.threadPoolSize	8	File sender thread pool size.	Yes	Yes	1 - Integer.MAX_VALUE
inbound		Server socket configuration. See TCP documentation and socket documentation for more information.
inbound.soBacklog	128	The size of the backlog.	Yes	Yes	0 - Integer.MAX_VALUE
inbound.soKeepAlive	true	Defines if the keep-alive packets are allowed.	Yes	Yes	true, false
inbound.soLinger	0	Defines how long the closed socket should linger.	Yes	Yes	0-65535
inbound.soReuseAddr	true	Defines if the address can be reused.	Yes	Yes	true, false
inbound.tcpNoDelay	true	Defines if the TCP no delay option is used.	Yes	Yes	true, false
listenAddress		Address (IP or hostname) to listen on. Listens on all interfaces if empty.	Yes	Yes	A valid address
membership		Node membership configuration.
membership.failurePingInterval	1000	Failure detector ping interval.	Yes	Yes	0 - inf
membership.membershipSyncInterval	30000	Periodic membership data synchronization interval.	Yes	Yes	0 - inf
membership.scaleCube		ScaleCube-specific configuration.
scaleCube.failurePingRequestMembers	3	Number of members that are randomly selected by a cluster node for an indirect ping request.	Yes	Yes	1 - inf
scaleCube.gossipInterval	200	Gossip spreading interval.	Yes	Yes	1 - inf
scaleCube.gossipRepeatMult	3	Gossip repeat multiplier.	Yes	Yes	1 - inf
scaleCube.membershipSuspicionMultiplier	5	The multiplier that is used to calculate the timeout after which the node is considered dead.	Yes	Yes	1 - inf
scaleCube.metadataTimeout	3000	The timeout on metadata update operation, in milliseconds.	Yes	Yes	1 - inf
nodeFinder		Configuration for how the node finds other nodes in the cluster.
nodeFinder.netClusterNodes		Addresses of all nodes in the cluster in the host:port format.	Yes	Yes	Addresses in a valid format
nodeFinder.type	STATIC	Node finder type.	Yes	Yes	STATIC is the only currently supported type
outbound		Outbound request configuration.
outbound.soKeepAlive	true	Defines if the keep-alive packets are allowed.	Yes	Yes	true, false
outbound.soLinger	0	Defines how long the closed socket should linger.	Yes	Yes	0-65535
outbound.tcpNoDelay	true	Defines if the TCP no delay option is used.	Yes	Yes	true, false
port	3344	Node port.	Yes	Yes	A valid port number
shutdownQuietPeriod	0	The period during node shutdown when GridGain ensures that no tasks are submitted for the before the node shuts itself down. If a task is submitted during this period, it is guaranteed to be accepted.	Yes	No	0 - inf
shutdownTimeout	15000	The maximum amount of time until the node is shut down regardless of if new network messages were submitted during shutdownQuietPeriod.	Yes	No	0 - inf
ssl.ciphers	""	List of ciphers to enable, comma-separated. Empty for automatic cipher selection.	Yes	Yes	TLS_AES_256_GCM_SHA384, etc. (standard cipher ids)
ssl.clientAuth		Whether the SSL client authentication is enabled and whether it is mandatory.	Yes	Yes	non, optional, require
ssl.enabled	false	Defines if SSL is enabled for the node.	Yes	Yes	true, false
ssl.keyStore		SSL keystore configuration.
keyStore.password	**	Keystore password.	Yes	Yes	A valid password
keyStore.path		Path to the keystore.	Yes	Yes	A valid path
keyStore.type	PKCS12	Keystore type.	Yes	Yes	PKCS12, JKS
ssl.trustStore		SSL trustsore configuration.
trustStore.password	**	Truststore password.	Yes	Yes	A valid password
trustStore.path		Path to the truststore.	Yes	Yes	A valid path
trustStore.type	PKCS12	Truststore type.	Yes	Yes	PKCS12, JKS

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

fileTransfer

File transfer configuration.

fileTransfer.chunkSize

1048576

Chunk size in bytes.

Yes

1 - 1 - Integer.MAX_VALUE

fileTransfer.maxConcurrentRequests

Maximum number of concurrent requests.

Yes

1 - Integer.MAX_VALUE

fileTransfer.responseTimeout

10000

Node response timeout during file transfer.

Yes

0 - inf

fileTransfer.threadPoolSize

File sender thread pool size.

Yes

1 - Integer.MAX_VALUE

inbound

Server socket configuration. See TCP documentation and socket documentation for more information.

inbound.soBacklog

128

The size of the backlog.

Yes

0 - Integer.MAX_VALUE

inbound.soKeepAlive

true

Defines if the keep-alive packets are allowed.

Yes

true, false

inbound.soLinger

Defines how long the closed socket should linger.

Yes

0-65535

inbound.soReuseAddr

true

Defines if the address can be reused.

Yes

true, false

inbound.tcpNoDelay

true

Defines if the TCP no delay option is used.

Yes

true, false

listenAddress

Address (IP or hostname) to listen on. Listens on all interfaces if empty.

Yes

A valid address

membership

Node membership configuration.

membership.failurePingInterval

1000

Failure detector ping interval.

Yes

0 - inf

membership.membershipSyncInterval

30000

Periodic membership data synchronization interval.

Yes

0 - inf

membership.scaleCube

ScaleCube-specific configuration.

scaleCube.failurePingRequestMembers

Number of members that are randomly selected by a cluster node for an indirect ping request.

Yes

1 - inf

scaleCube.gossipInterval

200

Gossip spreading interval.

Yes

1 - inf

scaleCube.gossipRepeatMult

Gossip repeat multiplier.

Yes

1 - inf

scaleCube.membershipSuspicionMultiplier

The multiplier that is used to calculate the timeout after which the node is considered dead.

Yes

1 - inf

scaleCube.metadataTimeout

3000

The timeout on metadata update operation, in milliseconds.

Yes

1 - inf

nodeFinder

Configuration for how the node finds other nodes in the cluster.

nodeFinder.netClusterNodes

Addresses of all nodes in the cluster in the host:port format.

Yes

Addresses in a valid format

nodeFinder.type

STATIC

Node finder type.

Yes

STATIC is the only currently supported type

outbound

Outbound request configuration.

outbound.soKeepAlive

true

Defines if the keep-alive packets are allowed.

Yes

true, false

outbound.soLinger

Defines how long the closed socket should linger.

Yes

0-65535

outbound.tcpNoDelay

true

Defines if the TCP no delay option is used.

Yes

true, false

port

3344

Node port.

Yes

A valid port number

shutdownQuietPeriod

The period during node shutdown when GridGain ensures that no tasks are submitted for the before the node shuts itself down. If a task is submitted during this period, it is guaranteed to be accepted.

Yes

0 - inf

shutdownTimeout

15000

The maximum amount of time until the node is shut down regardless of if new network messages were submitted during shutdownQuietPeriod.

Yes

0 - inf

ssl.ciphers

List of ciphers to enable, comma-separated. Empty for automatic cipher selection.

Yes

TLS_AES_256_GCM_SHA384, etc. (standard cipher ids)

ssl.clientAuth

Whether the SSL client authentication is enabled and whether it is mandatory.

Yes

non, optional, require

ssl.enabled

false

Defines if SSL is enabled for the node.

Yes

true, false

ssl.keyStore

SSL keystore configuration.

keyStore.password

Keystore password.

Yes

A valid password

keyStore.path

Path to the keystore.

Yes

A valid path

keyStore.type

PKCS12

Keystore type.

Yes

PKCS12, JKS

ssl.trustStore

SSL trustsore configuration.

trustStore.password

Truststore password.

Yes

A valid password

trustStore.path

Path to the truststore.

Yes

A valid path

trustStore.type

PKCS12

Truststore type.

Yes

PKCS12, JKS

Node Attributes

{
  "ignite" : {
    "nodeAttributes" : {
      "nodeAttributes" : [ ]
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
nodeAttributes		A list of node attributes used for dynamically distributing data only to those nodes that have the specified attribute values.	Yes	Yes	A JSON-formatted list

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

nodeAttributes

A list of node attributes used for dynamically distributing data only to those nodes that have the specified attribute values.

Yes

A JSON-formatted list

RAFT Configuration

{
  "ignite" : {
    "raft" : {
      "fsync" : true,
      "logPath" : "",
      "logStripesCount" : 4,
      "logYieldStrategy" : false,
      "responseTimeout" : 3000,
      "retryDelay" : 200,
      "retryTimeout" : 10000,
      "rpcInstallSnapshotTimeout" : 300000,
      "stripes" : 10,
      "volatileRaft" : {
        "logStorage" : {
          "name" : "unlimited"
        }
      }
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
fsync	true	Defines if fsync will be used to transfer data in the cluster.	Yes	Yes	true, false
logPath		Directory where the RAFT log is stored.	Yes	Yes	A valid path
logStripesCount	4	Amount of stripes in disruptors of log manager	Yes	Yes	1 - inf
logYieldStrategy	false	If true, the non-blocking strategy is used in the Disruptor of log manager.	Yes	Yes	true, false
responseTimeout	3000	Period for which the RAFT client will try to receive a response from a remote peer.	Yes	No	0 - inf
retryDelay	200	Delay between re-sends of a failed request by the RAFT client.	Yes	No	0 - inf
retryTimeout	10000	Period for which the RAFT client will try to receive a successful response from a remote peer.	Yes	No	0 - inf
installSnapshotTimeout	300000	The maximum period allowed for transferring a RAFT snapshot to a recipient and installing it.	Yes	Yes	1 - inf
volatileRaft.logStorageBudget.name	unlimited	The name of the log storage budget used by the node.	Yes	No, but the new values are only applied to new partitions	unlimited, entry-count

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

fsync

true

Defines if fsync will be used to transfer data in the cluster.

Yes

true, false

logPath

Directory where the RAFT log is stored.

Yes

A valid path

logStripesCount

Amount of stripes in disruptors of log manager

Yes

1 - inf

logYieldStrategy

false

If true, the non-blocking strategy is used in the Disruptor of log manager.

Yes

true, false

responseTimeout

3000

Period for which the RAFT client will try to receive a response from a remote peer.

Yes

0 - inf

retryDelay

200

Delay between re-sends of a failed request by the RAFT client.

Yes

0 - inf

retryTimeout

10000

Period for which the RAFT client will try to receive a successful response from a remote peer.

Yes

0 - inf

installSnapshotTimeout

300000

The maximum period allowed for transferring a RAFT snapshot to a recipient and installing it.

Yes

1 - inf

volatileRaft.logStorageBudget.name

unlimited

The name of the log storage budget used by the node.

Yes

No, but the new values are only applied to new partitions

unlimited, entry-count

REST Configuration

{
  "ignite" : {
    "rest" : {
      "dualProtocol" : false,
      "httpToHttpsRedirection" : false,
      "port" : 10300,
      "ssl" : {
        "ciphers" : "",
        "clientAuth" : "none",
        "enabled" : false,
        "keyStore" : {
          "password" : "********",
          "path" : "",
          "type" : "PKCS12"
        },
        "port" : 10400,
        "trustStore" : {
          "password" : "********",
          "path" : "",
          "type" : "PKCS12"
        }
      }
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
dualProtocol	false	Defines if both HTTP and HTTPS protocols are used by the endpoint.	Yes	Yes	true, false
httpToHttpsRedirection	false	Defines if requests to HTTP endpoint will be redirected to HTTPS.	Yes	Yes	true, false
port	10300	The port of the node’s REST endpoint.	Yes	Yes	A valid port
ssl.ciphers		Explicitly set node SSL cipher.	Yes	Yes	See acceptable values
ssl.clientAuth		Client authorization used by the node, if any.	Yes	Yes	non, optional, require
ssl.enabled	false	Defines if SSL is enabled for the node.	Yes	Yes	true, false
ssl.keyStore		SSL keystore configuration.
keyStore.password	**	Keystore password.	Yes	Yes	A valid password
keyStore.path		Path to the keystore.	Yes	Yes	A valid path
keyStore.type	PKCS12	Keystore type.	Yes	Yes	PKCS12, JKS
ssl.port	10400	Port used for SSL connections.	Yes	Yes	A valid port
ssl.trustStore		SSL trustsore configuration.
trustStore.password	**	Truststore password.	Yes	Yes	A valid password
trustStore.path		Path to the truststore.	Yes	Yes	A valid path
trustStore.type	PKCS12	Truststore type.	Yes	Yes	PKCS12, JKS

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

dualProtocol

false

Defines if both HTTP and HTTPS protocols are used by the endpoint.

Yes

true, false

httpToHttpsRedirection

false

Defines if requests to HTTP endpoint will be redirected to HTTPS.

Yes

true, false

port

10300

The port of the node’s REST endpoint.

Yes

A valid port

ssl.ciphers

Explicitly set node SSL cipher.

Yes

See acceptable values

ssl.clientAuth

Client authorization used by the node, if any.

Yes

non, optional, require

ssl.enabled

false

Defines if SSL is enabled for the node.

Yes

true, false

ssl.keyStore

SSL keystore configuration.

keyStore.password

Keystore password.

Yes

A valid password

keyStore.path

Path to the keystore.

Yes

A valid path

keyStore.type

PKCS12

Keystore type.

Yes

PKCS12, JKS

ssl.port

10400

Port used for SSL connections.

Yes

A valid port

ssl.trustStore

SSL trustsore configuration.

trustStore.password

Truststore password.

Yes

A valid password

trustStore.path

Path to the truststore.

Yes

A valid path

trustStore.type

PKCS12

Truststore type.

Yes

PKCS12, JKS

SQL Configuration

{
  "ignite" : {
    "sql" : {
      "execution" : {
        "threadCount" : 4
      },
      "nodeMemoryQuota" : "60%",
      "planner" : {
        "threadCount" : 4
      }
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
execution.threadCount	4	Number of threads for query execution.	Yes	Yes	1 - Integer.MAX_VALUE
nodeMemoryQuota	60%	Node-wide limit for memory to be used for SQL queries. A number with a dimension identifier: % - percentage of the node’s heap memory k - Kb m - Mb g - Gb "0" with any of he dimension identifiers turns the memory tracking off.	Yes	No	0-100% 0-9223372036854775807k/m/g
planner.threadCount	4	Number of threads for query planning.	Yes	Yes	1 - Integer.MAX_VALUE

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

execution.threadCount

Number of threads for query execution.

Yes

1 - Integer.MAX_VALUE

nodeMemoryQuota

60%

Node-wide limit for memory to be used for SQL queries. A number with a dimension identifier:

% - percentage of the node’s heap memory
k - Kb
m - Mb
g - Gb

"0" with any of he dimension identifiers turns the memory tracking off.

Yes

0-100%
0-9223372036854775807k/m/g

planner.threadCount

Number of threads for query planning.

Yes

1 - Integer.MAX_VALUE

Storage Configuration

GridGain Persistence is designed to provide a quick and responsive persistent storage. When using the persistent storage, GridGain stores all the data on disk, and loads as much data as it can into RAM for processing. When persistence is enabled, GridGain stores each partition in a separate file on disk. In addition to data partitions, GridGain stores indexes and metadata.

Each GridGain storage engine can have several storage profiles.

Checkpointing is the process of copying dirty pages from RAM to partition files on disk. A dirty page is a page that was updated in RAM but was not written to the respective partition file. After a checkpoint is created, all changes are persisted to disk and will be available if the node crashes and is restarted. Checkpointing is designed to ensure durability of data and recovery in case of a node failure. This process helps you utilize disk space frugally by keeping pages in the most up-to-date state on disk.

{
  "ignite" : {
    "storage" : {
      "engines" : {
        "aimem" : {
          "pageSize" : 16384
        },
        "aipersist" : {
          "checkpoint" : {
            "checkpointDelayMillis" : 200,
            "checkpointThreads" : 4,
            "compactionThreads" : 4,
            "frequency" : 180000,
            "frequencyDeviation" : 40,
            "logReadLockThresholdTimeout" : 0,
            "readLockTimeout" : 10000,
            "useAsyncFileIoFactory" : true
          },
          "pageSize" : 16384
        },
        "rocksdb" : {
          "flushDelayMillis" : 100
        },
        "columnar" : {
            "compressingConfiguration" : {
                "enableLz4Compression" : true
                "enableOrochCompression" : true
            }
            "memtableConfiguration" : {
                "memtableBufferCapacity" : 1048576
                "memtableBufferPoolCapacity" : 2147483648
                "memtableMaxEntries" : 262144
            }
            "mergeTreeConfiguration" : {
                "mergeTreeColumnBlockSizeHint" : 8192
                "mergeTreeFanout" : 4
                "mergeTreeFirstLevelSize" : 262144
                "mergeTreeSegmentKeyIndexGranularity" : 512
            }
            "threadPoolConfiguration" : {
                "threadPoolThreadCount" : 10
            }
        }
      },
      "profiles" : [ {
        "engine" : "aipersist",
        "name" : "default",
        "replacementMode" : "CLOCK",
        "size" : 268435456
      },
      {
        "engine" : "aimem",
        "name" : "default_aimem",
        "emptyPagesPoolSize" : 100,
        "eviction" : {
          "batchSize" : 200,
          "interval" : 60000,
          "lwmThreshold" : 1000,
          "lwmUpdateInterval" : 60000,
          "mode" : "DISABLED",
          "threshold" : "90%"
        },
        "initSize" : 268435456,
        "maxSize" : 268435456
      },
      {
        "engine" : "rocksdb",
        "name" : "default_rocksdb",
        "size" : 268435456,
        "writeBufferSize" : 67108864
      } ]
    }
  }
}

Property	Default	Description	Changeable	Requires Restart	Acceptable Values
engines.aimem		Aimem configuration.
aimem.pageSize	16384	The size of pages in the storage, in bytes.	Yes	Yes	1024-16384
engines.aipersist		Aipersist configuration.
aipersist.checkpoint.checkpointDelayMillis	200	Delay before staring a checkpoint after receiving the command.	Yes	No	0 - inf
aipersist.checkpoint.checkpointThreads	4	Number of CPU threads dedicated to checkpointing.	Yes	Yes	1 - inf
aipersist.checkpoint.compactionThreads	4	Number of CPU threads dedicated to data compaction.	Yes	Yes	1 - inf
aipersist.checkpoint.interval	180000	Interval between checkpoints in milliseconds.	Yes	No	0 - inf
aipersist.checkpoint.intervalDeviation	40	Jitter that will be added or subtracted from time period till next scheduled checkpoint (percentage).	Yes	No	0-100
aipersist.checkpoint.logReadLockThresholdTimeout	0	Threshold for logging long read locks, in milliseconds.	Yes	Yes	0 - inf
aipersist.checkpoint.readLockTimeout	10000	Timeout for checkpoint read lock acquisition, in milliseconds.	Yes	Yes	0 - inf
aipersist.checkpoint.useAsyncFileIoFactory	true	If GridGain uses asynchronous file I/O operations provider.	Yes	Yes	true, false
aipersist.pageSize	16384	The size of pages in the storage, in bytes.	No	N/A	1024-16384
engines.rocksdb		Rocksdb configuration.
rocksdb.flushDelayMillis	100	Delay before executing a flush triggered by RAFT.	Yes	Refreshed on engine registration	0 - inf
profiles		The list of available storage profiles.
engine		The storage engine.	No	N/A	aimem, aipersist, rocksdb
name		User-defined profile name.	No	N/A	A valid name
replacementMode	CLOCK	Sets the page replacement algorithm.	Yes	Yes	CLOCK, RANDOM_LRU, SEGMENTED_LRU
size	256Mb	Memory (RAM) region size.	Yes	Yes	Min 256Mb, max defined by the addressable memory limit of the OS
aipersist.size	268435456	Memory (offheap) region size.	Yes	Yes	Min 268435456, max defined by the addressable memory limit of the OS
aipersist.replacementMode	CLOCK	Sets the page replacement algorithm.	Yes	Yes	CLOCK, RANDOM_LRU, SEGMENTED_LRU
aimem.initSize	268435456	Initial memory region size in bytes, when the used memory size exceeds this value, new chunks of memory will be allocated.	Yes	Yes	Min 256Mb, max defined by the addressable memory limit of the OS
aimem.maxSize	268435456	Maximum memory region size in bytes.	Yes	Yes	Min 256Mb, max defined by the addressable memory limit of the OS
aimem.eviction.mode	DISABLED	Eviction mode.	Yes	No	DISABLED, HISTORY_ONLY, RANDOM
aimem.eviction.threshold	90%	Threshold for eviction initiation. A number with a dimension identifier: % - percentage of aimem.maxSize k - Kb m - Mb g - Gb For instance, "90%" means that the page memory starts eviction only after 90% of the data region is occupied.	Yes	No	0-100% 0-9223372036854775807k/m/g
aimem.eviction.lwmUpdateInterval	60000	Frequency of the low watermark update in milliseconds.	Yes	No	1 - inf
aimem.eviction.interval	60000	Interval between the data eviction iterations.	Yes	No	1 - inf
aimem.eviction.lwmThreshold	1000	If the low watermark is less than evictionLwmThreshold from the current timestamp, the row eviction is triggered.	Yes	No	0 - inf
aimem.eviction.batchSize	60000	Eviction batch size in rows.	Yes	No	1 - inf
rocksdb.size	268435456	Size of the rocksdb offheap cache.	Yes	Yes	Min 0, max defined by the addressable memory limit of the OS
rocksdb.writeBufferSize	67108864	Size of rocksdb write buffer.	Yes	Yes	Min 1, max defined by the addressable memory limit of the OS

Property

Default

Description

Changeable

Requires Restart

Acceptable Values

engines.aimem

Aimem configuration.

aimem.pageSize

16384

The size of pages in the storage, in bytes.

Yes

1024-16384

engines.aipersist

Aipersist configuration.

aipersist.checkpoint.checkpointDelayMillis

200

Delay before staring a checkpoint after receiving the command.

Yes

0 - inf

aipersist.checkpoint.checkpointThreads

Number of CPU threads dedicated to checkpointing.

Yes

1 - inf

aipersist.checkpoint.compactionThreads

Number of CPU threads dedicated to data compaction.

Yes

1 - inf

aipersist.checkpoint.interval

180000

Interval between checkpoints in milliseconds.

Yes

0 - inf

aipersist.checkpoint.intervalDeviation

Jitter that will be added or subtracted from time period till next scheduled checkpoint (percentage).

Yes

0-100

aipersist.checkpoint.logReadLockThresholdTimeout

Threshold for logging long read locks, in milliseconds.

Yes

0 - inf

aipersist.checkpoint.readLockTimeout

10000

Timeout for checkpoint read lock acquisition, in milliseconds.

Yes

0 - inf

aipersist.checkpoint.useAsyncFileIoFactory

true

If GridGain uses asynchronous file I/O operations provider.

Yes

true, false

aipersist.pageSize

16384

The size of pages in the storage, in bytes.

N/A

1024-16384

engines.rocksdb

Rocksdb configuration.

rocksdb.flushDelayMillis

100

Delay before executing a flush triggered by RAFT.

Yes

Refreshed on engine registration

0 - inf

profiles

The list of available storage profiles.

engine

The storage engine.

N/A

aimem, aipersist, rocksdb

name

User-defined profile name.

N/A

A valid name

replacementMode

CLOCK

Sets the page replacement algorithm.

Yes

CLOCK, RANDOM_LRU, SEGMENTED_LRU

size

256Mb

Memory (RAM) region size.

Yes

Min 256Mb, max defined by the addressable memory limit of the OS

aipersist.size

268435456

Memory (offheap) region size.

Yes

Min 268435456, max defined by the addressable memory limit of the OS

aipersist.replacementMode

CLOCK

Sets the page replacement algorithm.

Yes

CLOCK, RANDOM_LRU, SEGMENTED_LRU

aimem.initSize

268435456

Initial memory region size in bytes, when the used memory size exceeds this value, new chunks of memory will be allocated.

Yes

Min 256Mb, max defined by the addressable memory limit of the OS

aimem.maxSize

268435456

Maximum memory region size in bytes.

Yes

Min 256Mb, max defined by the addressable memory limit of the OS

aimem.eviction.mode

DISABLED

Eviction mode.

Yes

DISABLED, HISTORY_ONLY, RANDOM

aimem.eviction.threshold

90%

Threshold for eviction initiation. A number with a dimension identifier:

% - percentage of aimem.maxSize
k - Kb
m - Mb
g - Gb

For instance, "90%" means that the page memory starts eviction only after 90% of the data region is occupied.

Yes

0-100%
0-9223372036854775807k/m/g

aimem.eviction.lwmUpdateInterval

60000

Frequency of the low watermark update in milliseconds.

Yes

1 - inf

aimem.eviction.interval

60000

Interval between the data eviction iterations.

Yes

1 - inf

aimem.eviction.lwmThreshold

1000

If the low watermark is less than evictionLwmThreshold from the current timestamp, the row eviction is triggered.

Yes

0 - inf

aimem.eviction.batchSize

60000

Eviction batch size in rows.

Yes

1 - inf

rocksdb.size

268435456

Size of the rocksdb offheap cache.

Yes

Min 0, max defined by the addressable memory limit of the OS

rocksdb.writeBufferSize

67108864

Size of rocksdb write buffer.

Yes

Min 1, max defined by the addressable memory limit of the OS

System Configuration

This section describes internal properties, which are used by a number of GridGain components. Although you can edit these properties in the same way you edit all others - using the node config update CLI command - we suggest that you discuss the proposed changes with the GridGain support team. The properties can apply to a specific node - see below - or to the cluster as a whole.

{
  "ignite" : {
    "system" : {
      "cmgPath" : "",
      "metastoragePath" : "",
      "partitionsBasePath" : "",
      "partitionsLogPath" : "",
      "properties":[]
    }
  }
}

Property Default Description Changeable Requires Restart Acceptable Values

Property	Default	Changeable	Requires Restart	Acceptable Values
system.cmgPath	The path the cluster management group information is stored to. Only applicable if the node is part of CMG. By default, data is stored in `{GRIDGAIN_HOME}/work/cmg`. It is recommended to only change this path on an empty node.	Yes	Yes	Valid absolute path.
system.metastoragePath	The path the cluster meta information is stored to. Only applicable if the node is part of the metastorage group. By default, data is stored in `{GRIDGAIN_HOME}/work/metastorage`. It is recommended to only change this path on an empty node.	Yes	Yes	Valid absolute path.
system.partitionsBasePath	The path data partitions are saved to on the node. By default, partitions are stored in `{GRIDGAIN_HOME}/work/partitions`. It is recommended to only change this path on an empty node.	Yes	Yes	Valid absolute path.
system.partitionsLogPath	The path RAFT log the partitions are stored at. By default, this log is stored in `{system.partitionsBasePath}/log`. It is recommended to only change this path on an empty node.	Yes	Yes	Valid absolute path.
system.properties	System properties used by the GridGain components.	Yes	Yes	An array of properties.

system.cmgPath

The path the cluster management group information is stored to. Only applicable if the node is part of CMG. By default, data is stored in {GRIDGAIN_HOME}/work/cmg. It is recommended to only change this path on an empty node.

Yes

Valid absolute path.

system.metastoragePath

The path the cluster meta information is stored to. Only applicable if the node is part of the metastorage group. By default, data is stored in {GRIDGAIN_HOME}/work/metastorage. It is recommended to only change this path on an empty node.

Yes

Valid absolute path.

system.partitionsBasePath

The path data partitions are saved to on the node. By default, partitions are stored in {GRIDGAIN_HOME}/work/partitions. It is recommended to only change this path on an empty node.

Yes

Valid absolute path.

system.partitionsLogPath

The path RAFT log the partitions are stored at. By default, this log is stored in {system.partitionsBasePath}/log. It is recommended to only change this path on an empty node.

Yes

Valid absolute path.

system.properties

System properties used by the GridGain components.

Yes

An array of properties.

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Last updated on Nov 21, 2024