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https://issues.apache.org/jira/browse/OAK-5602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli updated OAK-5602:
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Description: As a follow up of OAK-5601: that one is about a situation
where backgroundRead falls way behind and journal GC cleans up journal entries
before it was able to read it. We should generally look into improving this
situation, eg by having journal GC not do the clean up as long as there are
instances that haven't read the entry. This could perhaps be achieved by
periodically having each instance inform the rest about what journal entries it
has processed (or simpler: how far back it would be -find- fine for journal
entries to be GC'ed) (was: As a follow up of OAK-5601: that one is about a
situation where backgroundRead falls way behind and journal GC cleans up
journal entries before it was able to read it. We should generally look into
improving this situation, eg by having journal GC not do the clean up as long
as there are instances that haven't read the entry. This could perhaps be
achieved by periodically having each instance inform the rest about what
journal entries it has processed (or simpler: how far back it would be find for
journal entries to be GC'ed))
> avoid missing journal entries
> -----------------------------
>
> Key: OAK-5602
> URL: https://issues.apache.org/jira/browse/OAK-5602
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.6.0
> Reporter: Stefan Egli
> Fix For: 1.7.0, 1.8
>
>
> As a follow up of OAK-5601: that one is about a situation where
> backgroundRead falls way behind and journal GC cleans up journal entries
> before it was able to read it. We should generally look into improving this
> situation, eg by having journal GC not do the clean up as long as there are
> instances that haven't read the entry. This could perhaps be achieved by
> periodically having each instance inform the rest about what journal entries
> it has processed (or simpler: how far back it would be -find- fine for
> journal entries to be GC'ed)
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