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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-12630) Rolling restart can create inconsistency between blockMap and corrupt replicas map
Date Thu, 12 Oct 2017 10:12:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wei-Chiu Chuang resolved HDFS-12630.
------------------------------------
    Resolution: Duplicate

> Rolling restart can create inconsistency between blockMap and corrupt replicas map
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-12630
>                 URL: https://issues.apache.org/jira/browse/HDFS-12630
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Andre Araujo
>
> After a NN rolling restart several HDFS files started showing block problems. Running
FSCK for one of the files or for the directory that contained it would complete with a FAILED
message but without any details of the failure.
> The NameNode log showed the following:
> {code}
> 2017-10-10 16:58:32,147 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: FSCK started
by hdfs (auth:KERBEROS_SSL) from /10.92.128.4 for path /user/prod/data/file_20171010092201.csv
at Tue Oct 10 16:58:32 PDT 2017
> 2017-10-10 16:58:32,147 WARN org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
Inconsistent number of corrupt replicas for blk_1941920008_1133195379 blockMap has 1 but corrupt
replicas map has 2
> 2017-10-10 16:58:32,147 WARN org.apache.hadoop.hdfs.server.namenode.NameNode: Fsck on
path '/user/prod/data/file_20171010092201.csv' FAILED
> java.lang.ArrayIndexOutOfBoundsException
> {code}
> After triggering a full block report for all the DNs the problem went away.



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