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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8809) HDFS fsck reports under construction blocks as "CORRUPT"
Date Thu, 20 Aug 2015 23:51:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14705993#comment-14705993
] 

Hudson commented on HDFS-8809:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #8331 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/8331/])
HDFS-8809. HDFS fsck reports under construction blocks as CORRUPT. Contributed by Jing Zhao.
(jing9: rev c8bca62718203a1dad9b70d164bdf10cc71b40cd)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NamenodeFsck.java


> HDFS fsck reports under construction blocks as "CORRUPT"
> --------------------------------------------------------
>
>                 Key: HDFS-8809
>                 URL: https://issues.apache.org/jira/browse/HDFS-8809
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 2.7.0
>         Environment: Hadoop 2.7.1 and HBase 1.1.1, on SUSE11sp3 (other Linuxes not tested,
probably not platform-dependent).  This did NOT happen with Hadoop 2.4 and HBase 0.98.
>            Reporter: Sudhir Prakash
>            Assignee: Jing Zhao
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8809.000.patch
>
>
> Whenever HBase is running, the "hdfs fsck /"  reports four hbase-related files in the
path "hbase/data/WALs/" as CORRUPT. Even after letting the cluster sit idle for a couple hours,
it is still in the corrupt state.  If HBase is shut down, the problem goes away.  If HBase
is then restarted, the problem recurs.  This was observed with Hadoop 2.7.1 and HBase 1.1.1,
and did NOT happen with Hadoop 2.4 and HBase 0.98.
> {code}
> hades1:/var/opt/teradata/packages # su hdfs
> hdfs@hades1:/var/opt/teradata/packages> hdfs fsck /
> Connecting to namenode via http://hades1.labs.teradata.com:50070/fsck?ugi=hdfs&path=%2F
> FSCK started by hdfs (auth:SIMPLE) from /39.0.8.2 for path / at Wed Jun 24 20:40:17 GMT
2015
> ...
> /apps/hbase/data/WALs/hades4.labs.teradata.com,16020,1435168292684/hades4.labs.teradata.com%2C16020%2C1435168292684.default.1435175500556:
MISSING 1 blocks of total size 83 B.
> /apps/hbase/data/WALs/hades5.labs.teradata.com,16020,1435168290466/hades5.labs.teradata.com%2C16020%2C1435168290466..meta.1435175562144.meta:
MISSING 1 blocks of total size 83 B.
> /apps/hbase/data/WALs/hades5.labs.teradata.com,16020,1435168290466/hades5.labs.teradata.com%2C16020%2C1435168290466.default.1435175498500:
MISSING 1 blocks of total size 83 B.
> /apps/hbase/data/WALs/hades6.labs.teradata.com,16020,1435168292373/hades6.labs.teradata.com%2C16020%2C1435168292373.default.1435175500301:
MISSING 1 blocks of total size 83 B..................................................................................................
> ....................................................................................................
> ....................................................................................................
> ........................................................................................Status:
CORRUPT
>  Total size:    723977553 B (Total open files size: 332 B)
>  Total dirs:    79
>  Total files:   388
>  Total symlinks:                0 (Files currently being written: 5)
>  Total blocks (validated):      387 (avg. block size 1870743 B) (Total open file blocks
(not validated): 4)
>   ********************************
>   UNDER MIN REPL'D BLOCKS:      4 (1.0335917 %)
>   dfs.namenode.replication.min: 1
>   CORRUPT FILES:        4
>   MISSING BLOCKS:       4
>   MISSING SIZE:         332 B
>   ********************************
>  Minimally replicated blocks:   387 (100.0 %)
>  Over-replicated blocks:        0 (0.0 %)
>  Under-replicated blocks:       0 (0.0 %)
>  Mis-replicated blocks:         0 (0.0 %)
>  Default replication factor:    3
>  Average block replication:     3.0
>  Corrupt blocks:                0
>  Missing replicas:              0 (0.0 %)
>  Number of data-nodes:          3
>  Number of racks:               1
> FSCK ended at Wed Jun 24 20:40:17 GMT 2015 in 7 milliseconds
> The filesystem under path '/' is CORRUPT
> hdfs@hades1:/var/opt/teradata/packages>
> {code}



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