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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3442) Incorrect count for Missing Replicas in FSCK report
Date Thu, 24 May 2012 22:48:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13282815#comment-13282815
] 

Hadoop QA commented on HDFS-3442:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12529263/HDFS-3442.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2514//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2514//console

This message is automatically generated.
                
> Incorrect count for Missing Replicas in FSCK report
> ---------------------------------------------------
>
>                 Key: HDFS-3442
>                 URL: https://issues.apache.org/jira/browse/HDFS-3442
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: suja s
>            Assignee: Andrew Wang
>            Priority: Minor
>         Attachments: HDFS-3442.patch
>
>
> Scenario:
> Cluster running in HA mode with 2 DNs. Files are written with replication factor as 3.
> There are 7 blocks in cluster.
> FSCK report is including all blocks in UnderReplicated Blocks as well as Missing Replicas.
> HOST-XX-XX-XX-102:/home/Apr4/hadoop-2.0.0-SNAPSHOT/bin # ./hdfs fsck /
> Connecting to namenode via http://XX.XX.XX.55:50070
> FSCK started by root (auth:SIMPLE) from /XX.XX.XX.102 for path / at Wed Apr 04 17:28:37
IST 2012
> .
> /1:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_2551710840802340037_1002.
Target Replicas is 3 but found 2 replica(s).
> .
> /2:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_-3851276776144500288_1004.
Target Replicas is 3 but found 2 replica(s).
> .
> /3:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_-3210606555285049524_1006.
Target Replicas is 3 but found 2 replica(s).
> .
> /4:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_4028835120510075310_1008.
Target Replicas is 3 but found 2 replica(s).
> .
> /5:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_-5238093749956876969_1010.
Target Replicas is 3 but found 2 replica(s).
> .
> /testrenamed/file1renamed:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_-5669194716756513504_1012.
Target Replicas is 3 but found 2 replica(s).
> .
> /testrenamed/file2:  Under replicated BP-534619337-XX.XX.XX.55-1333526344705:blk_8510284478280941311_1014.
Target Replicas is 3 but found 2 replica(s).
> Status: HEALTHY
>  Total size:    33215 B
>  Total dirs:    3
>  Total files:   7 (Files currently being written: 1)
>  Total blocks (validated):      7 (avg. block size 4745 B)
>  Minimally replicated blocks:   7 (100.0 %)
>  Over-replicated blocks:        0 (0.0 %)
>  Under-replicated blocks:       7 (100.0 %)
>  Mis-replicated blocks:         0 (0.0 %)
>  Default replication factor:    3
>  Average block replication:     2.0
>  Corrupt blocks:                0
>  Missing replicas:              7 (50.0 %)
>  Number of data-nodes:          2
>  Number of racks:               1
> FSCK ended at Wed Apr 04 17:28:37 IST 2012 in 2 milliseconds
> The filesystem under path '/' is HEALTHY
> Also it indicates a measure as 50% in brackets (There are only 7 blocks in cluster and
so if all 7 are included as Missing replicas it should be 100%)

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