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https://issues.apache.org/jira/browse/IGNITE-20166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pavel Tupitsyn updated IGNITE-20166:
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Labels: ignite-3 important (was: ignite-3)
> Metastorage Compaction
> ----------------------
>
> Key: IGNITE-20166
> URL: https://issues.apache.org/jira/browse/IGNITE-20166
> Project: Ignite
> Issue Type: Epic
> Reporter: Sergey Chugunov
> Priority: Major
> Labels: ignite-3, important
> Fix For: 3.1
>
>
> General logic of metastorage is that it supports multiple versions for the
> same key corresponding to different timestamps.
> At the same time there is a concept of a low watermark - a moment in time
> when all timestamps falling below that mark become obsolete and can be pruned
> from Metastorage.
> We need to implement a mechanism to compact Metastorage to remove obsolete
> keys. At the same time some components may rely on availability of history of
> key's versions.
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