hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-1879) ReadOnly transactions generate WAL activity.
Date Fri, 02 Oct 2009 05:24:23 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack resolved HBASE-1879.

    Resolution: Fixed

Committed branch and trunk.  Thanks for patch Clint.

> ReadOnly transactions generate WAL activity.
> --------------------------------------------
>                 Key: HBASE-1879
>                 URL: https://issues.apache.org/jira/browse/HBASE-1879
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Clint Morgan
>            Assignee: Clint Morgan
>            Priority: Minor
>             Fix For: 0.20.1, 0.21.0
>         Attachments: 1879.patch
> Currently we write a start entry in the WAL each time a transaction starts, and a commit/abort
at the end of the transaction. This means read-only transactions unnecessarily generate two
WAL entries per region.
> Can avoid this by removing the start entry from the WAL (this is implicit in the first
trx OP entry we see), and only writing commit/abort when the transaction has a write.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message