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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2580) Make the hlog file names unique
Date Thu, 20 May 2010 23:42:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jean-Daniel Cryans updated HBASE-2580:

    Attachment: HBASE-2580.patch

This patch adds the region server hostname and port (encoded) as the prefix for the log file
name. All the other modifications are refactoring around that. Passes all unit tests.

> Make the hlog file names unique
> -------------------------------
>                 Key: HBASE-2580
>                 URL: https://issues.apache.org/jira/browse/HBASE-2580
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.21.0
>         Attachments: HBASE-2580.patch
> Currently the HLog archiving thread adds another timestamp to ensure the file names are
"unique". This is ugly and makes it harder to track the HLogs movements from outside (like
replication). Instead we could use a UUID as the file name. 
> I was discussing with Stack the need of keeping a timestamp in the file name... I think
we can't get rid of it since we need to read the HLogs in sequence when splitting.

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