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Posted to issues@ignite.apache.org by "Alexei Scherbakov (JIRA)" <ji...@apache.org> on 2018/04/23 17:11:00 UTC

[jira] [Created] (IGNITE-8360) Page recovery from WAL can be very slow.

Alexei Scherbakov created IGNITE-8360:
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             Summary: Page recovery from WAL can be very slow.
                 Key: IGNITE-8360
                 URL: https://issues.apache.org/jira/browse/IGNITE-8360
             Project: Ignite
          Issue Type: Improvement
          Components: persistence
    Affects Versions: 2.4
            Reporter: Alexei Scherbakov
             Fix For: 2.6


Current implementation tries to recover corrupted page from WAL, potentially scanning all archived segments [1]

If archive is very large, on example due to large history or enabled point-in-time recovery, this might take significant time preventing cache start with consequences like hanging PME.

[1] org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl#tryToRestorePage



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