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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9420) Math.max() on syncedTillHere lacks synchronization
Date Thu, 19 Sep 2013 22:12:53 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-9420:
--------------------------

    Fix Version/s: 0.98.0
           Status: Patch Available  (was: Open)
    
> Math.max() on syncedTillHere lacks synchronization
> --------------------------------------------------
>
>                 Key: HBASE-9420
>                 URL: https://issues.apache.org/jira/browse/HBASE-9420
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 0.98.0
>
>         Attachments: 9420-v1.txt
>
>
> In FSHlog#syncer(), around line 1080:
> {code}
>       this.syncedTillHere = Math.max(this.syncedTillHere, doneUpto);
> {code}
> Assignment to syncedTillHere after computing max value is not protected by proper synchronization.

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