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The MDS Autoscaler provides automation to maintain a required count of MDSs in the system. The MDS count in the system can be afected by: * max_mds config option * standby_count_wanted config option * death of an active MDS Rank Fixes: https://tracker.ceph.com/issues/46884 Signed-off-by: Milind Changire <mchangir@redhat.com>
49 lines
1.7 KiB
ReStructuredText
49 lines
1.7 KiB
ReStructuredText
.. _ceph-manager-daemon:
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===================
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Ceph Manager Daemon
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===================
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The :term:`Ceph Manager` daemon (ceph-mgr) runs alongside monitor daemons,
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to provide additional monitoring and interfaces to external monitoring
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and management systems.
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Since the 12.x (*luminous*) Ceph release, the ceph-mgr daemon is required for
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normal operations. The ceph-mgr daemon is an optional component in
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the 11.x (*kraken*) Ceph release.
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By default, the manager daemon requires no additional configuration, beyond
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ensuring it is running. If there is no mgr daemon running, you will
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see a health warning to that effect, and some of the other information
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in the output of `ceph status` will be missing or stale until a mgr is started.
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Use your normal deployment tools, such as ceph-ansible or cephadm, to
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set up ceph-mgr daemons on each of your mon nodes. It is not mandatory
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to place mgr daemons on the same nodes as mons, but it is almost always
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sensible.
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.. toctree::
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:maxdepth: 1
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Installation and Configuration <administrator>
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Writing modules <modules>
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Writing orchestrator plugins <orchestrator_modules>
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Dashboard module <dashboard>
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Ceph RESTful API <ceph_api/index>
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Alerts module <alerts>
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DiskPrediction module <diskprediction>
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Local pool module <localpool>
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RESTful module <restful>
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Zabbix module <zabbix>
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Prometheus module <prometheus>
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Influx module <influx>
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Hello module <hello>
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Telegraf module <telegraf>
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Telemetry module <telemetry>
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Iostat module <iostat>
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Crash module <crash>
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Insights module <insights>
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Orchestrator module <orchestrator>
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Rook module <rook>
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MDS Autoscaler module <mds_autoscaler>
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