Analytics Configuration Parameters

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    The Couchbase Analytics Service has a number of configuration parameters to customize Analytics nodes. There are two categories of configuration parameters: service-level parameters and node-specific parameters.

    Service-Level Parameters

    Service-level parameters are applied to all nodes running the Analytics Service. These parameters can be used with the Service Configuration API to configure all Analytics Service nodes in the cluster.

    For the configuration changes to take effect, you must restart the Analytics cluster using the Cluster Restart API.

    Service

    Name Description Schema

    activeMemoryGlobalBudget
    optional

    The memory budget (in bytes) for the active runtime.
    Default : 67108864

    integer (int32)

    activeStopTimeout
    optional

    The maximum time (in seconds) to wait for a graceful stop of an active runtime.
    Default : 3600

    integer (int32)

    activeSuspendTimeout
    optional

    The maximum time (in seconds) to wait for a graceful suspend of an active runtime.
    Default : 3600

    integer (int32)

    analyticsBroadcastDcpStateMutationCount
    optional

    The number of processed mutations after which the DCP state is broadcast to storage
    Default : 10000

    integer (int32)

    analyticsHttpRequestQueueSize
    optional

    The maximum number of HTTP requests to queue pending ability to execute.
    Default : 256

    integer (int32)

    analyticsHttpThreadCount
    optional

    The number of threads to service HTTP requests.
    Default : 16

    integer (int32)

    bindAddress
    optional

    The bind address to use.

    string

    bindToHost
    optional

    Bind to configured hostname instead of wildcard address.
    Default : false

    boolean

    clusterConnectRetries
    optional

    Number of attempts to contact CC before giving up.
    Default : 5

    integer (int32)

    collectDcpStateFromNodesTimeout
    optional

    The maximum time to wait to collect DCP state from all nodes in seconds.
    Default : 600

    integer (int32)

    compilerFramesize
    optional

    The page size (in bytes) for computation.
    Default : 32768

    integer (int32)

    compilerGroupmemory
    optional

    The memory budget (in bytes) for a group by operator instance in a partition.
    Default : 33554432

    integer (int32)

    compilerJoinmemory
    optional

    The memory budget (in bytes) for a join operator instance in a partition.
    Default : 33554432

    integer (int32)

    compilerParallelism
    optional

    The degree of parallelism for query execution. Zero means to use the storage parallelism as the query execution parallelism, while other integer values dictate the number of query execution parallel partitions. The system will fall back to use the number of all available CPU cores in the cluster as the degree of parallelism if the number set by a user is too large or too small.
    Default : 0

    integer (int32)

    compilerSortParallel
    optional

    Enables or disables full parallel sort.
    Default : false

    boolean

    compilerSortmemory
    optional

    The memory budget (in bytes) for a sort operator instance in a partition.
    Default : 33554432

    integer (int32)

    compilerWindowmemory
    optional

    The memory budget (in bytes) for a window operator instance in a partition.
    Default : 33554432

    integer (int32)

    coresMultiplier
    optional

    The factor to multiply by the number of cores to determine maximum query concurrent execution level.
    Default : 3

    integer (int32)

    dcpChannelReconnectRemoteIdleSeconds
    optional

    Reconnect remote DCP channels that are idle for the specified number of seconds to ensure permissions have not been lost. A value of 0 disables reconnects on idle.
    Default : 120

    integer (int32)

    deadlockWatchdogHaltDelaySeconds
    optional

    The delay (in seconds) to wait for graceful shutdown due to deadlocked threads, before halting.
    Default : 120

    integer (int32)

    deadlockWatchdogPollSeconds
    optional

    The frequency (in seconds) to scan for deadlocked threads.
    Default : 300

    integer (int32)

    jobHistorySize
    optional

    Limits the number of historical jobs remembered by the system to the specified value.
    Default : 10

    integer (int32)

    jobQueueCapacity
    optional

    The maximum number of jobs to queue before rejecting new jobs.
    Default : 4096

    integer (int32)

    jvmArgs
    optional

    JVM args to pass to the Analytics Driver. The default is undefined (null).

    string

    logLevel
    optional

    The logging level.
    Default : "DEBUG"

    string

    maxWebRequestSize
    optional

    The maximum accepted web request size in bytes.
    Default : 52428800

    integer (int32)

    netBufferCount
    optional

    Number of network buffers per input/output channel.
    Default : 1

    integer (int32)

    netThreadCount
    optional

    Number of threads to use for Network I/O.
    Default : 1

    integer (int32)

    rebalancePullDatasetSizeFrequency
    optional

    The frequency at which the dataset size is pulled from nodes during rebalance in seconds.
    Default : 5

    integer (int32)

    remoteLinkConnectTimeoutSeconds
    optional

    The maximum time (in seconds) to wait for a remote link connection to establish. A value of 0 disables timeout; a value of -1 sets timeout to the system default.
    Default : 60

    integer (int32)

    requestsArchiveSize
    optional

    The maximum number of archived requests to maintain.
    Default : 50

    integer (int32)

    resultSweepThreshold
    optional

    The duration within which an instance of the result cleanup should be invoked in milliseconds.
    Default : 60000

    integer (int32)

    resultTtl
    optional

    Limits the amount of time results for asynchronous jobs should be retained by the system in milliseconds.
    Default : 86400000

    integer (int32)

    storageBuffercacheMaxopenfiles
    optional

    The maximum number of open files in the buffer cache.
    Default : 2147483647

    integer (int32)

    storageBuffercachePagesize
    optional

    The page size in bytes for pages in the buffer cache.
    Default : 131072

    integer (int32)

    storageCompressionBlock
    optional

    The default compression scheme for the storage.
    Default : "snappy"

    string

    storageMaxActiveWritableDatasets
    optional

    The maximum number of datasets that can be concurrently modified.
    Default : 8

    integer (int32)

    storageMemorycomponentNumcomponents
    optional

    The number of memory components to be used per LSM index.
    Default : 2

    integer (int32)

    storageMemorycomponentPagesize
    optional

    The page size in bytes for pages allocated to memory components.
    Default : 131072

    integer (int32)

    threaddumpFrequencySeconds
    optional

    The frequency (in seconds) at which to log diagnostic thread dumps.
    Default : 300

    integer (int32)

    threaddumpLogLevel
    optional

    The log level at which to emit diagnostic thread dumps.
    Default : "DEBUG"

    string

    traceCategories
    optional

    Categories for tracing. The default is the empty array — no categories.

    < object > array

    txnDatasetCheckpointInterval
    optional

    The interval (in seconds) after which a dataset is considered idle and persisted to disk.
    Default : 3600

    integer (int32)

    Node-Specific Parameters

    The following parameters can be used with the Node Configuration API to configure the Analytics Service node that receives the change request.

    For the configuration changes to take effect, you must restart the node using the Node Restart API, or restart the Analytics cluster using the Cluster Restart API.

    Node

    Name Description Schema

    jvmArgs
    optional

    JVM args to pass to the Analytics Driver. Node-specific JVM arguments are appended to service-level JVM arguments. If the same JVM argument appears in both the service-level arguments and the node-specific arguments, the node-specific argument takes priority.

    The default is undefined (null).

    string

    storageBuffercacheSize
    optional

    The size of memory allocated to the disk buffer cache. The value should be a multiple of the buffer cache page size.

    The default is 1/4 of the allocated Analytics Service memory.

    integer

    storageMemorycomponentGlobalbudget
    optional

    The size of memory allocated to the memory components. The value should be a multiple of the memory component page size.

    The default is 1/4 of the allocated Analytics Service memory.

    integer