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Document PC recovery feature #65

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temeo opened this issue Jun 17, 2014 · 1 comment
Closed

Document PC recovery feature #65

temeo opened this issue Jun 17, 2014 · 1 comment
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@kennethpjdyer
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documentation
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25.3.9

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@temeo
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temeo commented Jun 17, 2014

3.x branch has a new wsrep provider option pc.recovery (boolean). If the value for this parameter is set to true, primary component state is stored to disk and recovered from there when node is started.

Primary component is recovered automatically when all of the nodes that were present in the last known primary component have established communication between each other.

This feature solves two use cases:

  • Automatic recovery from full cluster crash (for example full data center power outage)
  • Graceful full cluster restart without the need for bootstrapping new primary component explicitly

Known limitations:

  • If the wsrep position differs between nodes during the recovery, full SST is required
  • ...
@temeo temeo added this to the 3.6 milestone Jun 17, 2014
kennethpjdyer added a commit that referenced this issue Jun 20, 2014
@kennethpjdyer
Ref #65: Documented pc.recovery.
8631260
@dirtysalt dirtysalt mentioned this issue Jul 28, 2014
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kennethpjdyer added a commit that referenced this issue Sep 2, 2014
@kennethpjdyer
Ref #61, #65 and #84: Updates to admin guide, including backups, limi…
aa0d215 
…tations and the header page. Page added to admin guide documenting the pc.recovery feature.
@temeo temeo mentioned this issue Sep 20, 2014
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temeo commented Sep 20, 2014

Documentation and open issues moved to https://github.com/codership/documentation/.

@temeo temeo closed this as completed Sep 20, 2014
janlindstrom pushed a commit to MariaDB/galera that referenced this issue Oct 13, 2018
@philip-galera
Merge pull request codership#65 from codership/gh275
23804d0 
fix to codership#277
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