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Posted to issues@hbase.apache.org by "Himanshu Vashishtha (JIRA)" <ji...@apache.org> on 2013/03/12 18:15:14 UTC

[jira] [Updated] (HBASE-8028) Append, Increment: Adding rollback support

     [ https://issues.apache.org/jira/browse/HBASE-8028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Himanshu Vashishtha updated HBASE-8028:
---------------------------------------

    Summary: Append, Increment: Adding rollback support  (was: Append, Increment don't handle wal-sync exceptions correctly)
    
> Append, Increment: Adding rollback support
> ------------------------------------------
>
>                 Key: HBASE-8028
>                 URL: https://issues.apache.org/jira/browse/HBASE-8028
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.94.5
>            Reporter: Himanshu Vashishtha
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.95.0
>
>         Attachments: HBase-8028-v1.patch, HBase-8028-v2.patch, HBase-8028-with-Increments-v1.patch
>
>
> In case there is an exception while doing the log-sync, the memstore is not rollbacked, while the mvcc is _always_ forwarded to the writeentry created at the beginning of the operation. This may lead to scanners seeing results which are not synched to the fs.

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