Michael Dürig updated OAK-6520:
    Fix Version/s:     (was: 1.7.7)

> Improve tail compactions resilience when base state cannot be determined
> ------------------------------------------------------------------------
>                 Key: OAK-6520
>                 URL: https://issues.apache.org/jira/browse/OAK-6520
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: compaction, gc
>             Fix For: 1.8, 1.7.6
> This is a follow up to OAK-3349: in tail compaction the 
> {{FileStore.GarbageCollector.getBase()}} might fail to determine the base 
> state to rebase onto. In this case we should fall back to full compaction and 
> report (log, JMX) the problem and its exact cause. 
> Failing to determine the base state might be caused by a missing or invalid 
> {{gc.log}} file or a invalid or missing record id for the base state being 
> recorded in {{gc.log}}. None of these cases should impact system stability. 

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