Elasticsearch Task

By Opster Team

Updated: Mar 21, 2023

| 1 min read

Overview

A task is an Elasticsearch operation, which can be any request performed on an Elasticsearch cluster, such as a delete by query request, a search request and so on. Elasticsearch provides a dedicated Task API for the task management which includes various actions, from retrieving the status of current running tasks to canceling any long running task.

Examples

Get all currently running tasks on all nodes of the cluster

Apart from other information, the response of the below request contains task IDs of all the tasks which can be used to get detailed information about the particular task in question.

GET _tasks

Get detailed information of a particular task

Where clQFAL_VRrmnlRyPsu_p8A:1132678759 is the ID of the task in below request

GET _tasks/clQFAL_VRrmnlRyPsu_p8A:1132678759

Get all the current tasks running on particular nodes

GET _tasks?nodes=nodeId1,nodeId2

Cancel a task

Where clQFAL_VRrmnlRyPsu_p8A:1132678759 is the ID of the task in the below request

POST /_tasks/clQFAL_VRrmnlRyPsu_p8A:1132678759/_cancel?pretty

Notes

  • The Task API will be most useful when you want to investigate the spike of resource utilization in the cluster or want to cancel an operation.

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Related log errors to this ES concept


JobTask getJobId failed to search for associated datafeed
JobId error while setting task state to failed marking task as failed
Stopped associated datafeed after job failure
JobId failed to search for associated datafeed
Job has running datafeed task resetting as no snapshot exists
Job has running datafeed task reverting to current snapshot
JobTask getJobId error reverting job to its current snapshot attempting retry
JobId error finalizing job
JobTask getJobId failed to open job
%s %s failed to update snapshot upgrader task to started
JobTask getJobId Failed to delete temporary files
Job jobTask isVacating Vacating Closing

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