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OpenSearch/docs/reference/cluster/nodes-hot-threads.asciidoc

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Migrated documentation into the main repo
2013-08-28 19:24:34 -04:00
[[cluster-nodes-hot-threads]]
[DOCS] Remove heading offsets for REST APIs (#44568) Several files in the REST APIs nav section are included using :leveloffset: tags. This increments headings (h2 -> h3, h3 -> h4, etc.) in those files and removes the :leveloffset: tags. Other supporting changes: * Alphabetizes top-level REST API nav items. * Change 'indices APIs' heading to 'index APIs.' * Changes 'Snapshot lifecycle management' heading to sentence case.
2019-07-19 14:35:36 -04:00
=== Nodes hot_threads
Migrated documentation into the main repo
2013-08-28 19:24:34 -04:00
Update docs for node specifications (#30468) Expands and clarifies exactly what is and isn't allowed when specifying a subset of the nodes as targets of a cluster API, and adds missing links to this from the hot threads and cluster stats API docs. Co-authored-by: David Turner <david.turner@elastic.co> Co-authored-by: Yu <yu.liu003@gmail.com>
2018-08-20 09:21:31 -04:00
This API yields a breakdown of the hot threads on each selected node in the
cluster. Its endpoints are `/_nodes/hot_threads` and
`/_nodes/{nodes}/hot_threads`:
Migrated documentation into the main repo
2013-08-28 19:24:34 -04:00
Update docs for node specifications (#30468) Expands and clarifies exactly what is and isn't allowed when specifying a subset of the nodes as targets of a cluster API, and adds missing links to this from the hot threads and cluster stats API docs. Co-authored-by: David Turner <david.turner@elastic.co> Co-authored-by: Yu <yu.liu003@gmail.com>
2018-08-20 09:21:31 -04:00
[source,js]
--------------------------------------------------
GET /_nodes/hot_threads
GET /_nodes/nodeId1,nodeId2/hot_threads
--------------------------------------------------
// CONSOLE
The first command gets the hot threads of all the nodes in the cluster. The
second command gets the hot threads of only `nodeId1` and `nodeId2`. Nodes can
be selected using <<cluster-nodes,node filters>>.
The output is plain text with a breakdown of each node's top hot threads. The
allowed parameters are:
Migrated documentation into the main repo
2013-08-28 19:24:34 -04:00
[horizontal]
[DOCS] Removed the experimental label from Tribe, Hot Threads and Completion Suggester
2014-02-06 08:19:17 -05:00
`threads`:: number of hot threads to provide, defaults to 3.
Migrated documentation into the main repo
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`interval`:: the interval to do the second sampling of threads.
[DOCS] Removed the experimental label from Tribe, Hot Threads and Completion Suggester
2014-02-06 08:19:17 -05:00
Defaults to 500ms.
Migrated documentation into the main repo
2013-08-28 19:24:34 -04:00
`type`:: The type to sample, defaults to cpu, but supports wait and
block to see hot threads that are in wait or block state.
Core: ignore known idle threads by default in /_nodes/hot_threads Add a new ignore_idle_threads boolean option (default true) to /_nodes/hot_threads, to filter out threads in known idle places like waiting on a socket select or on pulling the next task from an empty queue. Closes #8985 Closes #8908
2014-12-17 11:59:31 -05:00
`ignore_idle_threads`:: If true, known idle threads (e.g. waiting in a socket select, or to
get a task from an empty queue) are filtered out. Defaults to true.