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Posted to issues@ignite.apache.org by "Maxim Muzafarov (Jira)" <ji...@apache.org> on 2019/10/02 12:12:00 UTC

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

     [ https://issues.apache.org/jira/browse/IGNITE-10034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maxim Muzafarov resolved IGNITE-10034.
--------------------------------------
    Resolution: Fixed

> 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
>            Priority: Critical
>             Fix For: 2.8
>
>
> 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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