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From "Aaron Glahe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1470) logger.dir.walog description should say that the WAL is stored on the "HDFS filesystem"
Date Wed, 29 May 2013 20:18:19 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669671#comment-13669671
] 

Aaron Glahe commented on ACCUMULO-1470:
---------------------------------------

This is based on, from what I can tell, the WAL being written into the "/accumulo" on the
DFS.  However, what is weird, is that even though I had the default (walogs), the DIR that
was created was "wal."

In looking over the code, the LOGGER_DIR property does have the default set to "walogs", but
when looking at org.apache.accumulo.core.Constants:

  /**
   * @param conf
   * @return The write-ahead log directory.
   */
  public static String getWalDirectory(final AccumuloConfiguration conf) {
    return getBaseDir(conf) + "/wal";
  }

which is where I BELIEVE (not sure) that being used instead of the LOGGER_DIR.  

                
> logger.dir.walog description should say that the WAL is stored on the "HDFS filesystem"
> ---------------------------------------------------------------------------------------
>
>                 Key: ACCUMULO-1470
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1470
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.5.0
>            Reporter: Aaron Glahe
>            Priority: Trivial
>
> Currently description for logger.dir.walog:
>     <description>The directory used to store write-ahead logs on the local filesystem.
It is possible to specify a comma-separated list of directories.
>     </description>
> I read "local filesystem" as it is NOT being written to the HDFS filesystem

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