[DOCS] Reformats cluster node stats API (#45441)
Co-Authored-By: James Rodewig <james.rodewig@elastic.co>
This commit is contained in:
István Zoltán Szabó
parent
dd527b4e91
commit
4ee7ac25ae
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@ -1,72 +1,406 @@
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[[cluster-nodes-stats]]
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=== Nodes Stats
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[float]
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==== Nodes statistics
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Returns cluster nodes statistics.
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The cluster nodes stats API allows to retrieve one or more (or all) of
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the cluster nodes statistics.
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[source,js]
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--------------------------------------------------
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GET /_nodes/stats
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GET /_nodes/nodeId1,nodeId2/stats
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--------------------------------------------------
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// CONSOLE
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[[cluster-nodes-stats-api-request]]
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==== {api-request-title}
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The first command retrieves stats of all the nodes in the cluster. The
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second command selectively retrieves nodes stats of only `nodeId1` and
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`nodeId2`. All the nodes selective options are explained
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<<cluster-nodes,here>>.
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`GET /_nodes/stats` +
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By default, all stats are returned. You can limit this by combining any
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of `indices`, `os`, `process`, `jvm`, `transport`, `http`,
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`fs`, `breaker` and `thread_pool`. For example:
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`GET /_nodes/{node_id}/stats` +
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[horizontal]
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`indices`::
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Indices stats about size, document count, indexing and
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deletion times, search times, field cache size, merges and flushes
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`GET/_nodes/stats/{metric}` +
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`fs`::
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File system information, data path, free disk space, read/write
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stats (see <<fs-info,FS information>>)
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`GET/_nodes/{node_id}/stats/{metric}` +
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`http`::
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HTTP connection information
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`GET /_nodes/stats/{metric}/{index_metric}` +
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`jvm`::
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JVM stats, memory pool information, garbage collection, buffer
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pools, number of loaded/unloaded classes
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`GET /_nodes/{node_id}/stats/{metric}/{index_metric}`
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`os`::
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Operating system stats, load average, mem, swap
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(see <<os-stats,OS statistics>>)
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`process`::
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Process statistics, memory consumption, cpu usage, open
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file descriptors (see <<process-stats,Process statistics>>)
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[[cluster-nodes-stats-api-desc]]
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==== {api-description-title}
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`thread_pool`::
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Statistics about each thread pool, including current
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size, queue and rejected tasks
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You can use the cluster nodes stats API to retrieve statistics for nodes in a cluster.
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`transport`::
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Transport statistics about sent and received bytes in
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cluster communication
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`breaker`::
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Statistics about the field data circuit breaker
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All the nodes selective options are explained <<cluster-nodes,here>>.
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`discovery`::
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Statistics about the discovery
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By default, all stats are returned. You can limit the returned information by
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using metrics.
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`ingest`::
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Statistics about ingest preprocessing
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[[cluster-nodes-stats-api-path-params]]
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==== {api-path-parms-title}
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`adaptive_selection`::
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Statistics about <<search-adaptive-replica,adaptive replica selection>>. See
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<<adaptive-selection-stats,adaptive selection statistics>>.
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`{metric}`::
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(Optional, string) Limits the information returned to the specific metrics.
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A comma-separated list of the following options:
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+
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--
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`adaptive_selection`::
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Statistics about <<search-adaptive-replica,adaptive replica selection>>.
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`breaker`::
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Statistics about the field data circuit breaker.
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`discovery`::
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Statistics about the discovery.
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`fs`::
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File system information, data path, free disk space, read/write
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stats.
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`http`::
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HTTP connection information.
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`indices`::
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Indices stats about size, document count, indexing and deletion times,
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search times, field cache size, merges and flushes.
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`ingest`::
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Statistics about ingest preprocessing.
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`jvm`::
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JVM stats, memory pool information, garbage collection, buffer
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pools, number of loaded/unloaded classes.
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`os`::
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Operating system stats, load average, mem, swap.
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`process`::
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Process statistics, memory consumption, cpu usage, open
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file descriptors.
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`thread_pool`::
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Statistics about each thread pool, including current size, queue and
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rejected tasks.
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`transport`::
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Transport statistics about sent and received bytes in cluster
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communication.
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--
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`{index_metric}`::
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(Optional, string) Limit the information returned for `indices` metric to
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the specific index metrics. It can be used only if `indices` (or `all`)
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metric is specified. Supported metrics are:
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+
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--
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* `completion`
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* `docs`
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* `fielddata`
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* `flush`
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* `get`
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* `indexing`
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* `merge`
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* `query_cache`
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* `recovery`
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* `refresh`
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* `request_cache`
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* `search`
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* `segments`
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* `store`
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* `translog`
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* `warmer`
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--
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include::{docdir}/rest-api/common-parms.asciidoc[tag=node-id]
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[[cluster-nodes-stats-api-query-params]]
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==== {api-query-parms-title}
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`completion_fields`::
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(Optional, string) A comma-separated list of fields for `fielddata` and
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`suggest` index metric (supports wildcards).
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`fielddata_fields`::
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(Optional, string) A comma-separated list of fields for `fielddata` index
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metric (supports wildcards).
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`fields`::
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(Optional, string) A comma-separated list of fields for `fielddata` and
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`completion` index metric (supports wildcards).
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`groups`::
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(Optional, string) A comma-separated list of search groups for `search`
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index metric.
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`level`::
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(Optional, string) Returns indices stats aggregated at index, node or shard
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level. Supported options: `indices`, `node`, `shards`.
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`types`::
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(Optional, string) A comma-separated list of document types for the
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`indexing` index metric.
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include::{docdir}/rest-api/common-parms.asciidoc[tag=timeoutparms]
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`include_segment_file_sizes`::
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(Optional, boolean) If `true`, the call reports the aggregated disk usage of
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each one of the Lucene index files (only applies if segment stats are
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requested). Defaults to `false`.
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[[cluster-nodes-stats-api-response-body]]
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==== {api-response-body-title}
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The `fs` flag can be set to retrieve information that concern the file system:
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`fs.timestamp`::
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Last time the file stores statistics have been refreshed.
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`fs.total.total_in_bytes`::
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Total size (in bytes) of all file stores.
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`fs.total.free_in_bytes`::
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Total number of unallocated bytes in all file stores.
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`fs.total.available_in_bytes`::
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Total number of bytes available to this Java virtual machine on all file
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stores. Depending on OS or process level restrictions, this might appear
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less than `fs.total.free_in_bytes`. This is the actual amount of free disk
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space the {es} node can utilise.
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`fs.data`::
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List of all file stores.
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`fs.data.path`::
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Path to the file store.
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`fs.data.mount`::
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Mount point of the file store (ex: /dev/sda2).
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`fs.data.type`::
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Type of the file store (ex: ext4).
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`fs.data.total_in_bytes`::
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Total size (in bytes) of the file store.
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`fs.data.free_in_bytes`::
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Total number of unallocated bytes in the file store.
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`fs.data.available_in_bytes`::
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Total number of bytes available to this Java virtual machine on this file
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store.
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`fs.io_stats.devices` (Linux only)::
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Array of disk metrics for each device that is backing an {es} data path.
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These disk metrics are probed periodically and averages between the last
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probe and the current probe are computed.
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`fs.io_stats.devices.device_name` (Linux only)::
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The Linux device name.
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`fs.io_stats.devices.operations` (Linux only)::
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The total number of read and write operations for the device completed since
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starting {es}.
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`fs.io_stats.devices.read_operations` (Linux only)::
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The total number of read operations for the device completed since starting
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{es}.
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`fs.io_stats.devices.write_operations` (Linux only)::
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The total number of write operations for the device completed since starting
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{es}.
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`fs.io_stats.devices.read_kilobytes` (Linux only)::
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The total number of kilobytes read for the device since starting {es}.
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`fs.io_stats.devices.write_kilobytes` (Linux only)::
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The total number of kilobytes written for the device since starting {es}.
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`fs.io_stats.operations` (Linux only)::
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The total number of read and write operations across all devices used by
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{es} completed since starting {es}.
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`fs.io_stats.read_operations` (Linux only)::
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The total number of read operations for across all devices used by {es}
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completed since starting {es}.
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`fs.io_stats.write_operations` (Linux only)::
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The total number of write operations across all devices used by {es}
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completed since starting {es}.
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`fs.io_stats.read_kilobytes` (Linux only)::
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The total number of kilobytes read across all devices used by {es} since
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starting {es}.
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`fs.io_stats.write_kilobytes` (Linux only)::
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The total number of kilobytes written across all devices used by {es} since
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starting {es}.
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The `os` flag can be set to retrieve statistics that concern
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the operating system:
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`os.timestamp`::
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Last time the operating system statistics have been refreshed.
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`os.cpu.percent`::
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Recent CPU usage for the whole system, or -1 if not supported.
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`os.cpu.load_average.1m`::
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One-minute load average on the system (field is not present if one-minute
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load average is not available).
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`os.cpu.load_average.5m`::
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Five-minute load average on the system (field is not present if five-minute
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load average is not available).
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`os.cpu.load_average.15m`::
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Fifteen-minute load average on the system (field is not present if
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fifteen-minute load average is not available).
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`os.mem.total_in_bytes`::
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Total amount of physical memory in bytes.
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`os.mem.free_in_bytes`::
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Amount of free physical memory in bytes.
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`os.mem.free_percent`::
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Percentage of free memory.
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`os.mem.used_in_bytes`::
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Amount of used physical memory in bytes.
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`os.mem.used_percent`::
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Percentage of used memory.
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`os.swap.total_in_bytes`::
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Total amount of swap space in bytes.
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`os.swap.free_in_bytes`::
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Amount of free swap space in bytes.
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`os.swap.used_in_bytes`::
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Amount of used swap space in bytes.
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`os.cgroup.cpuacct.control_group` (Linux only)::
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The `cpuacct` control group to which the {es} process belongs.
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`os.cgroup.cpuacct.usage_nanos` (Linux only)::
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The total CPU time (in nanoseconds) consumed by all tasks in the same cgroup
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as the {es} process.
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`os.cgroup.cpu.control_group` (Linux only)::
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The `cpu` control group to which the {es} process belongs.
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`os.cgroup.cpu.cfs_period_micros` (Linux only)::
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The period of time (in microseconds) for how regularly all tasks in the same
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cgroup as the {es} process should have their access to CPU resources
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reallocated.
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`os.cgroup.cpu.cfs_quota_micros` (Linux only)::
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The total amount of time (in microseconds) for which all tasks in
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the same cgroup as the {es} process can run during one period
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`os.cgroup.cpu.cfs_period_micros`.
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`os.cgroup.cpu.stat.number_of_elapsed_periods` (Linux only)::
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The number of reporting periods (as specified by
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`os.cgroup.cpu.cfs_period_micros`) that have elapsed.
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`os.cgroup.cpu.stat.number_of_times_throttled` (Linux only)::
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The number of times all tasks in the same cgroup as the {es} process have
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been throttled.
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`os.cgroup.cpu.stat.time_throttled_nanos` (Linux only)::
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The total amount of time (in nanoseconds) for which all tasks in the same
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cgroup as the {es} process have been throttled.
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`os.cgroup.memory.control_group` (Linux only)::
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The `memory` control group to which the {es} process belongs.
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`os.cgroup.memory.limit_in_bytes` (Linux only)::
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The maximum amount of user memory (including file cache) allowed for all
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tasks in the same cgroup as the {es} process. This value can be too big to
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store in a `long`, so is returned as a string so that the value returned can
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exactly match what the underlying operating system interface returns. Any
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value that is too large to parse into a `long` almost certainly means no
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limit has been set for the cgroup.
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`os.cgroup.memory.usage_in_bytes` (Linux only)::
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The total current memory usage by processes in the cgroup (in bytes) by all
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tasks in the same cgroup as the {es} process. This value is stored as a
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string for consistency with `os.cgroup.memory.limit_in_bytes`.
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NOTE: For the cgroup stats to be visible, cgroups must be compiled into the
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kernel, the `cpu` and `cpuacct` cgroup subsystems must be configured and stats
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must be readable from `/sys/fs/cgroup/cpu` and `/sys/fs/cgroup/cpuacct`.
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The `process` flag can be set to retrieve statistics that concern
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the current running process:
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`process.timestamp`::
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Last time the process statistics have been refreshed.
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`process.open_file_descriptors`::
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Number of opened file descriptors associated with the current process, or -1
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if not supported.
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`process.max_file_descriptors`::
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Maximum number of file descriptors allowed on the system, or -1 if not
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supported.
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`process.cpu.percent`::
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CPU usage in percent, or -1 if not known at the time the stats are computed
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`process.cpu.total_in_millis`::
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CPU time (in milliseconds) used by the process on which the Java virtual
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machine is running, or -1 if not supported.
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`process.mem.total_virtual_in_bytes`::
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Size in bytes of virtual memory that is guaranteed to be available to the
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running process.
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The `ingest` flag can be set to retrieve statistics that concern ingest:
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`ingest.total.count`::
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The total number of document ingested during the lifetime of this node
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`ingest.total.time_in_millis`::
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The total time spent on ingest preprocessing documents during the lifetime
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of this node.
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`ingest.total.current`::
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The total number of documents currently being ingested.
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`ingest.total.failed`::
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The total number ingest preprocessing operations failed during the lifetime
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of this node.
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On top of these overall ingest statistics, these statistics are also provided on
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a per pipeline basis.
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The `adaptive_selection` flag can be set to retrieve statistics that concern
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<<search-adaptive-replica,adaptive replica selection>>. These statistics are
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keyed by node. For each node:
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`adaptive_selection.outgoing_searches`::
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The number of outstanding search requests from the node these stats are for
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to the keyed node.
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`avg_queue_size`::
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The exponentially weighted moving average queue size of search requests on
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the keyed node.
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`avg_service_time_ns`::
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The exponentially weighted moving average service time of search requests on
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the keyed node.
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`avg_response_time_ns`::
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The exponentially weighted moving average response time of search requests
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on the keyed node.
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`rank`::
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The rank of this node; used for shard selection when routing search
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requests.
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[[cluster-nodes-stats-api-example]]
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==== {api-examples-title}
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|
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[source,js]
|
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--------------------------------------------------
|
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|
|
@ -81,243 +415,21 @@ GET /_nodes/10.0.0.1/stats/process
|
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--------------------------------------------------
|
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// CONSOLE
|
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|
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All stats can be explicitly requested via `/_nodes/stats/_all` or `/_nodes/stats?metric=_all`.
|
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All stats can be explicitly requested via `/_nodes/stats/_all` or
|
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`/_nodes/stats?metric=_all`.
|
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[float]
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[[fs-info]]
|
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===== FS information
|
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|
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The `fs` flag can be set to retrieve
|
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information that concern the file system:
|
||||
|
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`fs.timestamp`::
|
||||
Last time the file stores statistics have been refreshed
|
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|
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`fs.total.total_in_bytes`::
|
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Total size (in bytes) of all file stores
|
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|
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`fs.total.free_in_bytes`::
|
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Total number of unallocated bytes in all file stores
|
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|
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`fs.total.available_in_bytes`::
|
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Total number of bytes available to this Java virtual machine on all file stores.
|
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Depending on OS or process level restrictions, this might appear less than `fs.total.free_in_bytes`.
|
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This is the actual amount of free disk space the Elasticsearch node can utilise.
|
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|
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`fs.data`::
|
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List of all file stores
|
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`fs.data.path`::
|
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Path to the file store
|
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|
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`fs.data.mount`::
|
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Mount point of the file store (ex: /dev/sda2)
|
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|
||||
`fs.data.type`::
|
||||
Type of the file store (ex: ext4)
|
||||
|
||||
`fs.data.total_in_bytes`::
|
||||
Total size (in bytes) of the file store
|
||||
|
||||
`fs.data.free_in_bytes`::
|
||||
Total number of unallocated bytes in the file store
|
||||
|
||||
`fs.data.available_in_bytes`::
|
||||
Total number of bytes available to this Java virtual machine on this file store
|
||||
|
||||
`fs.io_stats.devices` (Linux only)::
|
||||
Array of disk metrics for each device that is backing an
|
||||
Elasticsearch data path. These disk metrics are probed periodically
|
||||
and averages between the last probe and the current probe are
|
||||
computed.
|
||||
|
||||
`fs.io_stats.devices.device_name` (Linux only)::
|
||||
The Linux device name.
|
||||
|
||||
`fs.io_stats.devices.operations` (Linux only)::
|
||||
The total number of read and write operations for the device
|
||||
completed since starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.devices.read_operations` (Linux only)::
|
||||
The total number of read operations for the device completed since
|
||||
starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.devices.write_operations` (Linux only)::
|
||||
The total number of write operations for the device completed since
|
||||
starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.devices.read_kilobytes` (Linux only)::
|
||||
The total number of kilobytes read for the device since starting
|
||||
Elasticsearch.
|
||||
|
||||
`fs.io_stats.devices.write_kilobytes` (Linux only)::
|
||||
The total number of kilobytes written for the device since
|
||||
starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.operations` (Linux only)::
|
||||
The total number of read and write operations across all devices
|
||||
used by Elasticsearch completed since starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.read_operations` (Linux only)::
|
||||
The total number of read operations for across all devices used by
|
||||
Elasticsearch completed since starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.write_operations` (Linux only)::
|
||||
The total number of write operations across all devices used by
|
||||
Elasticsearch completed since starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.read_kilobytes` (Linux only)::
|
||||
The total number of kilobytes read across all devices used by
|
||||
Elasticsearch since starting Elasticsearch.
|
||||
|
||||
`fs.io_stats.write_kilobytes` (Linux only)::
|
||||
The total number of kilobytes written across all devices used by
|
||||
Elasticsearch since starting Elasticsearch.
|
||||
|
||||
[float]
|
||||
[[os-stats]]
|
||||
===== Operating System statistics
|
||||
|
||||
The `os` flag can be set to retrieve statistics that concern
|
||||
the operating system:
|
||||
|
||||
`os.timestamp`::
|
||||
Last time the operating system statistics have been refreshed
|
||||
|
||||
`os.cpu.percent`::
|
||||
Recent CPU usage for the whole system, or -1 if not supported
|
||||
|
||||
`os.cpu.load_average.1m`::
|
||||
One-minute load average on the system (field is not present if
|
||||
one-minute load average is not available)
|
||||
`os.cpu.load_average.5m`::
|
||||
Five-minute load average on the system (field is not present if
|
||||
five-minute load average is not available)
|
||||
`os.cpu.load_average.15m`::
|
||||
Fifteen-minute load average on the system (field is not present if
|
||||
fifteen-minute load average is not available)
|
||||
|
||||
`os.mem.total_in_bytes`::
|
||||
Total amount of physical memory in bytes
|
||||
|
||||
`os.mem.free_in_bytes`::
|
||||
Amount of free physical memory in bytes
|
||||
|
||||
`os.mem.free_percent`::
|
||||
Percentage of free memory
|
||||
|
||||
`os.mem.used_in_bytes`::
|
||||
Amount of used physical memory in bytes
|
||||
|
||||
`os.mem.used_percent`::
|
||||
Percentage of used memory
|
||||
|
||||
`os.swap.total_in_bytes`::
|
||||
Total amount of swap space in bytes
|
||||
|
||||
`os.swap.free_in_bytes`::
|
||||
Amount of free swap space in bytes
|
||||
|
||||
`os.swap.used_in_bytes`::
|
||||
Amount of used swap space in bytes
|
||||
|
||||
`os.cgroup.cpuacct.control_group` (Linux only)::
|
||||
The `cpuacct` control group to which the Elasticsearch process
|
||||
belongs
|
||||
|
||||
`os.cgroup.cpuacct.usage_nanos` (Linux only)::
|
||||
The total CPU time (in nanoseconds) consumed by all tasks in the
|
||||
same cgroup as the Elasticsearch process
|
||||
|
||||
`os.cgroup.cpu.control_group` (Linux only)::
|
||||
The `cpu` control group to which the Elasticsearch process belongs
|
||||
|
||||
`os.cgroup.cpu.cfs_period_micros` (Linux only)::
|
||||
The period of time (in microseconds) for how regularly all tasks in
|
||||
the same cgroup as the Elasticsearch process should have their
|
||||
access to CPU resources reallocated.
|
||||
|
||||
`os.cgroup.cpu.cfs_quota_micros` (Linux only)::
|
||||
The total amount of time (in microseconds) for which all tasks in
|
||||
the same cgroup as the Elasticsearch process can run during one
|
||||
period `os.cgroup.cpu.cfs_period_micros`
|
||||
|
||||
`os.cgroup.cpu.stat.number_of_elapsed_periods` (Linux only)::
|
||||
The number of reporting periods (as specified by
|
||||
`os.cgroup.cpu.cfs_period_micros`) that have elapsed
|
||||
|
||||
`os.cgroup.cpu.stat.number_of_times_throttled` (Linux only)::
|
||||
The number of times all tasks in the same cgroup as the
|
||||
Elasticsearch process have been throttled.
|
||||
|
||||
`os.cgroup.cpu.stat.time_throttled_nanos` (Linux only)::
|
||||
The total amount of time (in nanoseconds) for which all tasks in
|
||||
the same cgroup as the Elasticsearch process have been throttled.
|
||||
|
||||
`os.cgroup.memory.control_group` (Linux only)::
|
||||
The `memory` control group to which the Elasticsearch process
|
||||
belongs
|
||||
|
||||
`os.cgroup.memory.limit_in_bytes` (Linux only)::
|
||||
The maximum amount of user memory (including file cache) allowed
|
||||
for all tasks in the same cgroup as the Elasticsearch process.
|
||||
This value can be too big to store in a `long`, so is returned as
|
||||
a string so that the value returned can exactly match what the
|
||||
underlying operating system interface returns. Any value that is
|
||||
too large to parse into a `long` almost certainly means no limit
|
||||
has been set for the cgroup.
|
||||
|
||||
`os.cgroup.memory.usage_in_bytes` (Linux only)::
|
||||
The total current memory usage by processes in the cgroup (in bytes)
|
||||
by all tasks in the same cgroup as the Elasticsearch process.
|
||||
This value is stored as a string for consistency with
|
||||
`os.cgroup.memory.limit_in_bytes`.
|
||||
|
||||
NOTE: For the cgroup stats to be visible, cgroups must be compiled into
|
||||
the kernel, the `cpu` and `cpuacct` cgroup subsystems must be
|
||||
configured and stats must be readable from `/sys/fs/cgroup/cpu`
|
||||
and `/sys/fs/cgroup/cpuacct`.
|
||||
|
||||
[float]
|
||||
[[process-stats]]
|
||||
===== Process statistics
|
||||
|
||||
The `process` flag can be set to retrieve statistics that concern
|
||||
the current running process:
|
||||
|
||||
`process.timestamp`::
|
||||
Last time the process statistics have been refreshed
|
||||
|
||||
`process.open_file_descriptors`::
|
||||
Number of opened file descriptors associated with the current process, or -1 if not supported
|
||||
|
||||
`process.max_file_descriptors`::
|
||||
Maximum number of file descriptors allowed on the system, or -1 if not supported
|
||||
|
||||
`process.cpu.percent`::
|
||||
CPU usage in percent, or -1 if not known at the time the stats are computed
|
||||
|
||||
`process.cpu.total_in_millis`::
|
||||
CPU time (in milliseconds) used by the process on which the Java virtual machine is running, or -1 if not supported
|
||||
|
||||
`process.mem.total_virtual_in_bytes`::
|
||||
Size in bytes of virtual memory that is guaranteed to be available to the running process
|
||||
|
||||
[float]
|
||||
[[node-indices-stats]]
|
||||
==== Indices statistics
|
||||
|
||||
You can get information about indices stats on `node`, `indices`, or `shards` level.
|
||||
You can get information about indices stats on `node`, `indices`, or `shards`
|
||||
level.
|
||||
|
||||
[source,js]
|
||||
--------------------------------------------------
|
||||
# Fielddata summarised by node
|
||||
# Fielddata summarized by node
|
||||
GET /_nodes/stats/indices/fielddata?fields=field1,field2
|
||||
|
||||
# Fielddata summarised by node and index
|
||||
# Fielddata summarized by node and index
|
||||
GET /_nodes/stats/indices/fielddata?level=indices&fields=field1,field2
|
||||
|
||||
# Fielddata summarised by node, index, and shard
|
||||
# Fielddata summarized by node, index, and shard
|
||||
GET /_nodes/stats/indices/fielddata?level=shards&fields=field1,field2
|
||||
|
||||
# You can use wildcards for field names
|
||||
|
|
@ -325,29 +437,6 @@ GET /_nodes/stats/indices/fielddata?fields=field*
|
|||
--------------------------------------------------
|
||||
// CONSOLE
|
||||
|
||||
Supported metrics are:
|
||||
|
||||
* `completion`
|
||||
* `docs`
|
||||
* `fielddata`
|
||||
* `flush`
|
||||
* `get`
|
||||
* `indexing`
|
||||
* `merge`
|
||||
* `query_cache`
|
||||
* `recovery`
|
||||
* `refresh`
|
||||
* `request_cache`
|
||||
* `search`
|
||||
* `segments`
|
||||
* `store`
|
||||
* `translog`
|
||||
* `warmer`
|
||||
|
||||
[float]
|
||||
[[search-groups]]
|
||||
==== Search groups
|
||||
|
||||
You can get statistics about search groups for searches executed
|
||||
on this node.
|
||||
|
||||
|
|
@ -360,51 +449,3 @@ GET /_nodes/stats?groups=_all
|
|||
GET /_nodes/stats/indices?groups=foo,bar
|
||||
--------------------------------------------------
|
||||
// CONSOLE
|
||||
|
||||
[float]
|
||||
[[ingest-stats]]
|
||||
==== Ingest statistics
|
||||
|
||||
The `ingest` flag can be set to retrieve statistics that concern ingest:
|
||||
|
||||
`ingest.total.count`::
|
||||
The total number of document ingested during the lifetime of this node
|
||||
|
||||
`ingest.total.time_in_millis`::
|
||||
The total time spent on ingest preprocessing documents during the lifetime of this node
|
||||
|
||||
`ingest.total.current`::
|
||||
The total number of documents currently being ingested.
|
||||
|
||||
`ingest.total.failed`::
|
||||
The total number ingest preprocessing operations failed during the lifetime of this node
|
||||
|
||||
On top of these overall ingest statistics, these statistics are also provided on a per pipeline basis.
|
||||
|
||||
[float]
|
||||
[[adaptive-selection-stats]]
|
||||
==== Adaptive selection statistics
|
||||
|
||||
The `adaptive_selection` flag can be set to retrieve statistics that concern
|
||||
<<search-adaptive-replica,adaptive replica selection>>. These statistics are
|
||||
keyed by node. For each node:
|
||||
|
||||
`adaptive_selection.outgoing_searches`::
|
||||
The number of outstanding search requests from the node these stats are for to
|
||||
the keyed node.
|
||||
|
||||
`avg_queue_size`::
|
||||
The exponentially weighted moving average queue size of search requests on the
|
||||
keyed node.
|
||||
|
||||
`avg_service_time_ns`::
|
||||
The exponentially weighted moving average service time of search requests on
|
||||
the keyed node.
|
||||
|
||||
`avg_response_time_ns`::
|
||||
The exponentially weighted moving average response time of search requests on
|
||||
the keyed node.
|
||||
|
||||
`rank`::
|
||||
The rank of this node; used for shard selection when routing search requests.
|
||||
|
||||
|
|
|
|||
|
|
@ -842,7 +842,7 @@ plugin.mandatory: ingest-attachment
|
|||
|
||||
A node will not start if this plugin is not available.
|
||||
|
||||
The <<ingest-stats,node stats API>> can be used to fetch ingest usage statistics, globally and on a per
|
||||
The <<cluster-nodes-stats,node stats API>> can be used to fetch ingest usage statistics, globally and on a per
|
||||
pipeline basis. Useful to find out which pipelines are used the most or spent the most time on preprocessing.
|
||||
|
||||
[float]
|
||||
|
|
|
|||
Loading…
Reference in New Issue