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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7869) Provide way to not start LogSyncer thread
Date Tue, 19 Feb 2013 00:53:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anoop Sam John updated HBASE-7869:
----------------------------------

    Attachment: HBASE-7869_Trunk.patch
    
> Provide way to not start LogSyncer thread
> -----------------------------------------
>
>                 Key: HBASE-7869
>                 URL: https://issues.apache.org/jira/browse/HBASE-7869
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, wal
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: HBASE-7869_Trunk.patch
>
>
> In our usecase we want all the Mutations on all the tables to be immediately written
and synced to WAL. We dont want the LogSyncer thread to be running in such a case.
> In minbatch operation we write entries to WAL and we use postWALWrite and write some
more WAL entries(Only write no sync). We want all these written data to be synced as one unit
(at the sync step in doMiniBatchOperation) But if the LogSyncer thread is running in the system
it can come and do the sync at any point in time which we dont want in our case.

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