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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (IGNITE-2814) IGFS: Optimize file meta update operations using entry processors.
Date Mon, 14 Mar 2016 10:19:33 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov closed IGNITE-2814.
-----------------------------------

> IGFS: Optimize file meta update operations using entry processors.
> ------------------------------------------------------------------
>
>                 Key: IGNITE-2814
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2814
>             Project: Ignite
>          Issue Type: Task
>          Components: IGFS
>    Affects Versions: 1.5.0.final
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>            Priority: Critical
>             Fix For: 1.7
>
>
> *Problem*
> There are 3 operation types performed on files during write:
> 1) lock
> 2) unlock
> 3) length update
> Some of there operations perform put/replace on cache to update meta. This is less than
efficient because we have to pass the file {{IgfsFileInfo}} which is pretty heavy.
> *Solution*
> We must ensure that all these operations use light-weight entry processors instead.



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