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https://issues.apache.org/jira/browse/IGNITE-22889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Puchkovskiy updated IGNITE-22889:
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Description:
Metastorage majority may be lost forever. Without a majority, a Raft group (and
Metastorage is backed by a Raft group called MG) cannot function. We need a way
to reconfigure such a MG forcefully. We need to take into consideration a
possibility for the lost majority to return after or duing the repair. Such a
return should not cause inconsistencies and other troubles.
This epic contains the core part of the repair functionality. Improvements are
in IGNITE-22905.
Link to
[IEP|https://cwiki.apache.org/confluence/display/IGNITE/IEP-128%3A+CMG+and+Metastorage+Disaster+Recovery]
was:
Metastorage majority may be lost forever. Without a majority, a Raft group (and
Metastorage is backed by a Raft group called MG) cannot function. We need a way
to reconfigure such a MG forcefully. We need to take into consideration a
possibility for the lost majority to return after or duing the repair. Such a
return should not cause inconsistencies and other troubles.
This epic contains the core part of the repair functionality. Improvements are
in IGNITE-22905.
> Metastorage majority loss recovery
> ----------------------------------
>
> Key: IGNITE-22889
> URL: https://issues.apache.org/jira/browse/IGNITE-22889
> Project: Ignite
> Issue Type: Epic
> Reporter: Roman Puchkovskiy
> Priority: Major
> Labels: ignite-3
>
> Metastorage majority may be lost forever. Without a majority, a Raft group
> (and Metastorage is backed by a Raft group called MG) cannot function. We
> need a way to reconfigure such a MG forcefully. We need to take into
> consideration a possibility for the lost majority to return after or duing
> the repair. Such a return should not cause inconsistencies and other troubles.
> This epic contains the core part of the repair functionality. Improvements
> are in IGNITE-22905.
> Link to
> [IEP|https://cwiki.apache.org/confluence/display/IGNITE/IEP-128%3A+CMG+and+Metastorage+Disaster+Recovery]
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