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From "gaojinchao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4132) Extend the WALActionsListener API to accomodate log archival
Date Tue, 30 Aug 2011 03:16:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093403#comment-13093403
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gaojinchao commented on HBASE-4132:
-----------------------------------

Whether we can add the following api?
  
 /**
   * The WAL needs to be archived. It is going to be moved from oldPath to
   * newPath.
   * 
   * @param oldPath
   *          the path to the old hlog
   * @param newPath
   *          the path to the new hlog
   * @return true if default behavior should be bypassed, false otherwise
   */
  boolean preArchiveLog(Path oldPath, Path newPath) throws IOException;

  /**
   * The WAL has been archived. It is moved from oldPath to newPath.
   * 
   * @param oldPath
   *          the path to the old hlog
   * @param newPath
   *          the path to the new hlog
   * @param archivalWasSuccessful
   *          true, if the archival was successful
   */
  void postArchiveLog(Path oldPath, Path newPath,
      boolean archivalWasSuccessful) throws IOException;

> Extend the WALActionsListener API to accomodate log archival
> ------------------------------------------------------------
>
>                 Key: HBASE-4132
>                 URL: https://issues.apache.org/jira/browse/HBASE-4132
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: dhruba borthakur
>             Fix For: 0.92.0
>
>         Attachments: walArchive.txt
>
>
> The WALObserver interface exposes the log roll events. It would be nice to extend it
to accomodate log archival events as well.

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