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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1462) Refactor edit log loading to a separate class from edit log writing
Date Wed, 20 Oct 2010 19:42:23 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Todd Lipcon updated HDFS-1462:

    Attachment: hdfs-1462.txt

Ran tests on this, got the following failures which also exist on trunk (filed JIRAs for all
of these, most of which were previously reported in the comments on HDFS-96):
    [junit] Test org.apache.hadoop.hdfs.TestFileStatus FAILED (HDFS-1470)
    [junit] Test org.apache.hadoop.hdfs.TestHDFSTrash FAILED (timeout) (HDFS-1471)
    [junit] Test org.apache.hadoop.fs.TestFcHdfsSymlink FAILED (HDFS-1466)
    [junit] Test org.apache.hadoop.fs.TestHDFSFileContextMainOperations FAILED (HDFS-1466)
    [junit] Test org.apache.hadoop.hdfs.TestPipelines FAILED (HDFS-1467)
    [junit] Test org.apache.hadoop.hdfs.server.datanode.TestBlockReport FAILED (HDFS-1468)
    [junit] Test org.apache.hadoop.hdfs.server.namenode.TestBlockTokenWithDFS FAILED  (HDFS-1469)

This failed on the previous patch:
    [junit] Test org.apache.hadoop.hdfs.server.namenode.TestBackupNode FAILED (timeout)
with a somewhat obvious NPE. This new version of the patch addresses the issue and the test
now passes.

> Refactor edit log loading to a separate class from edit log writing
> -------------------------------------------------------------------
>                 Key: HDFS-1462
>                 URL: https://issues.apache.org/jira/browse/HDFS-1462
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-1462.txt, hdfs-1462.txt
> Before the major work in HDFS-1073, I'd like to do this refactor to clean up the monster
FSEditLog class. We can separate all the functions that take of loading edits into an FSN
from the functions that take care of writing edits, rolling, etc.

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