OpenSearch/docs/reference/ml/anomaly-detection/apis/open-job.asciidoc

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[role="xpack"]
[testenv="platinum"]
[[ml-open-job]]
=== Open {anomaly-jobs} API
++++
<titleabbrev>Open jobs</titleabbrev>
++++
Opens one or more {anomaly-jobs}.
[[ml-open-job-request]]
==== {api-request-title}
`POST _ml/anomaly_detectors/{job_id}/_open`
[[ml-open-job-prereqs]]
==== {api-prereq-title}
* If the {es} {security-features} are enabled, you must have `manage_ml` or
`manage` cluster privileges to use this API. See
{stack-ov}/security-privileges.html[Security privileges].
[[ml-open-job-desc]]
==== {api-description-title}
An {anomaly-job} must be opened in order for it to be ready to receive and
analyze data. It can be opened and closed multiple times throughout its
lifecycle.
When you open a new job, it starts with an empty model.
When you open an existing job, the most recent model state is automatically
loaded. The job is ready to resume its analysis from where it left off, once new
data is received.
[[ml-open-job-path-parms]]
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
[[ml-open-job-request-body]]
==== {api-request-body-title}
`timeout`::
(Optional, time) Controls the time to wait until a job has opened. The default
value is 30 minutes.
[[ml-open-job-example]]
==== {api-examples-title}
The following example opens the `total-requests` job and sets an optional
property:
[source,console]
--------------------------------------------------
POST _ml/anomaly_detectors/total-requests/_open
{
"timeout": "35m"
}
--------------------------------------------------
// TEST[skip:setup:server_metrics_job]
When the job opens, you receive the following results:
[source,console-result]
----
{
"opened": true
}
----