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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11011) Avoid extra getFileStatus() calls on Region startup
Date Thu, 17 Apr 2014 17:47:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13973186#comment-13973186

Matteo Bertozzi commented on HBASE-11011:

{quote}The fact that a file is missing seems pretty bad, yet it's at DEBUG.{quote}
In this case is not bad, is an "expected" situation, where the RS died before moving the compacted
Anyway, I think that all the "for(compactionOutputs)" loop can be removed,
since is trying to lookup files in /table/region/family/ and if they are there are already
loaded for sure.

> Avoid extra getFileStatus() calls on Region startup
> ---------------------------------------------------
>                 Key: HBASE-11011
>                 URL: https://issues.apache.org/jira/browse/HBASE-11011
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.96.2, 0.98.1, 1.0.0
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>             Fix For: 1.0.0, 0.98.2, 0.96.3
>         Attachments: HBASE-11011-v0.patch
> On load we already have a StoreFileInfo and we create it from the path,
> this will result in an extra fs.getFileStatus() call.
> In completeCompactionMarker() we do a fs.exists() and later a fs.getFileStatus()
> to create the StoreFileInfo, we can avoid the exists.

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