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Posted to issues@ignite.apache.org by "Maxim Muzafarov (JIRA)" <ji...@apache.org> on 2018/10/28 15:52:00 UTC

[jira] [Created] (IGNITE-10034) Metastore read-only mode reduces the node start time

Maxim Muzafarov created IGNITE-10034:
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             Summary: Metastore read-only mode reduces the node start time
                 Key: IGNITE-10034
                 URL: https://issues.apache.org/jira/browse/IGNITE-10034
             Project: Ignite
          Issue Type: Bug
    Affects Versions: 2.7, 2.8
            Reporter: Maxim Muzafarov


Currently, note startup routine performs 2-times reading WAL:
* read WAL to restore Metastore in read-only mode ({{GridCacheDatabaseSharedManager#readMetastore}})
* read WAL to perform binary memory recovery({{GridCacheDatabaseSharedManager#restoreBinaryMemory}})

In the case of huge WAL it dramatically reduces the node stat time. We should restore Metastorage in read-only mode and binary memory consistency within single WAL iteration.



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