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c3149421bc
The documentation currently refers to Ceph Manager Modules as "plugins" in many places, while the command line interface uses "module" to enable/disable modules. Replaced all occurences of "plugin" with "module" in the docs, to avoid confusion and to be in alignment with the CLI. Also fixed the capitalizations of some module chapters. Fixes: https://tracker.ceph.com/issues/38481 Signed-off-by: Lenz Grimmer <lgrimmer@suse.com>
53 lines
1.8 KiB
ReStructuredText
53 lines
1.8 KiB
ReStructuredText
Insights Module
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===============
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The insights module collects and exposes system information to the Insights Core
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data analysis framework. It is intended to replace explicit interrogation of
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Ceph CLIs and daemon admin sockets, reducing the API surface that Insights
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depends on. The insights reports contains the following:
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* **Health reports**. In addition to reporting the current health of the
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cluster, the insights module reports a summary of the last 24 hours of health
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checks. This feature is important for catching cluster health issues that are
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transient and may not be present at the moment the report is generated. Health
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checks are deduplicated to avoid unbounded data growth.
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* **Crash reports**. A summary of any daemon crashes in the past 24 hours is
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included in the insights report. Crashes are reported as the number of crashes
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per daemon type (e.g. `ceph-osd`) within the time window. Full details of a
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crash may be obtained using the `crash module`_.
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* Software version, storage utilization, cluster maps, placement group summary,
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monitor status, cluster configuration, and OSD metadata.
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Enabling
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--------
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The *insights* module is enabled with::
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ceph mgr module enable insights
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Commands
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--------
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::
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ceph insights
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Generate the full report.
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::
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ceph insights prune-health <hours>
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Remove historical health data older than <hours>. Passing `0` for <hours> will
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clear all health data.
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This command is useful for cleaning the health history before automated nightly
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reports are generated, which may contain spurious health checks accumulated
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while performing system maintenance, or other health checks that have been
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resolved. There is no need to prune health data to reclaim storage space;
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garbage collection is performed regularly to remove old health data from
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persistent storage.
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.. _crash module: ../crash
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