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Posted to hdfs-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2011/02/19 15:38:38 UTC
[jira] Commented: (HDFS-1497) Write pipeline sequence numbers
should be sequential with no skips or duplicates
[ https://issues.apache.org/jira/browse/HDFS-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12996782#comment-12996782 ]
Hadoop QA commented on HDFS-1497:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12468045/hdfs-1497.txt
against trunk revision 1072023.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
-1 patch. The patch command could not apply the patch.
Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/183//console
This message is automatically generated.
> Write pipeline sequence numbers should be sequential with no skips or duplicates
> --------------------------------------------------------------------------------
>
> Key: HDFS-1497
> URL: https://issues.apache.org/jira/browse/HDFS-1497
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 0.20-append, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-1497.txt, hdfs-1497.txt, hdfs-1497.txt, hdfs-1497.txt, hdfs-1497.txt
>
>
> In HDFS-895 we discovered that multiple hflush() calls in a row without intervening writes could cause a skip in sequence number. This doesn't seem to have any direct consequences, but we should maintain and assert the invariant that sequence numbers have no gaps or duplicates.
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