67 lines
3.0 KiB
Plaintext
67 lines
3.0 KiB
Plaintext
[[java-rest-high-x-pack-ml-get-job-stats]]
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=== Get Job Stats API
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The Get Job Stats API provides the ability to get any number of
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{ml} job's statistics in the cluster.
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It accepts a `GetJobStatsRequest` object and responds
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with a `GetJobStatsResponse` object.
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[[java-rest-high-x-pack-ml-get-job-stats-request]]
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==== Get Job Stats Request
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A `GetJobsStatsRequest` object can have any number of `jobId`
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entries. However, they all must be non-null. An empty list is the same as
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requesting statistics for all jobs.
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-job-stats-request]
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--------------------------------------------------
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<1> Constructing a new request referencing existing `jobIds`, can contain wildcards
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<2> Whether to ignore if a wildcard expression matches no jobs.
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(This includes `_all` string or when no jobs have been specified)
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[[java-rest-high-x-pack-ml-get-job-stats-execution]]
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==== Execution
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The request can be executed through the `MachineLearningClient` contained
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in the `RestHighLevelClient` object, accessed via the `machineLearningClient()` method.
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-job-stats-execute]
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--------------------------------------------------
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[[java-rest-high-x-pack-ml-get-job-stats-execution-async]]
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==== Asynchronous Execution
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The request can also be executed asynchronously:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-job-stats-execute-async]
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--------------------------------------------------
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<1> The `GetJobsStatsRequest` to execute and the `ActionListener` to use when
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the execution completes
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The method does not block and returns immediately. The passed `ActionListener` is used
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to notify the caller of completion. A typical `ActionListener` for `GetJobsStatsResponse` may
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look like
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-job-stats-listener]
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--------------------------------------------------
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<1> `onResponse` is called back when the action is completed successfully
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<2> `onFailure` is called back when some unexpected error occurs
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[[java-rest-high-x-pack-ml-get-job-stats-response]]
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==== Get Job Stats Response
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The returned `GetJobStatsResponse` contains the requested job statistics:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-job-stats-response]
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--------------------------------------------------
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<1> `getCount()` indicates the number of jobs statistics found
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<2> `getJobStats()` is the collection of {ml} `JobStats` objects found |