2020-10-20 03:49:48 +00:00
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MDS Autoscaler Module
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=====================
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2021-04-21 18:09:53 +00:00
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The MDS Autoscaler Module monitors file systems to ensure sufficient MDS
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daemons are available. It works by adjusting the placement specification for
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the orchestrator backend of the MDS service. To enable, use:
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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.. sh:
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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ceph mgr module enable mds_autoscaler
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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The module will monitor the following file system settings to inform
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placement count adjustments:
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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- ``max_mds`` file system setting
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- ``standby_count_wanted`` file system setting
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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The Ceph monitor daemons are still responsible for promoting or stopping MDS
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according to these settings. The ``mds_autoscaler`` simply adjusts the
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number of MDS which are spawned by the orchestrator.
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2020-10-20 03:49:48 +00:00
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2021-04-21 18:09:53 +00:00
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.. note: There is no CLI or module configurations as of now. Enable or disable
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the module to turn on or off.
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