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From "Rushabh S Shah (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-11711) DN should not delete the block On "Too many open files" Exception
Date Tue, 06 Jun 2017 17:23:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039292#comment-16039292
] 

Rushabh S Shah edited comment on HDFS-11711 at 6/6/17 5:23 PM:
---------------------------------------------------------------

bq. The third param vaule should be more than the second param i
[~linyiqun]: Good catch. We should fix this.
Does it make sense to open a new jira for GenericTestUtils to have some assert or preconditions
check to make sure 3rd param is _always_ greater than 2nd param.



was (Author: shahrs87):
bq. The third param vaule should be more than the second param i
[~linyiqun]: Good catch. We should fix this.
Does it make sense to open a new jira to make sure GenericTestUtils have some assert or preconditions
check to make sure 3rd param is _always_ greater than 2nd param.


> DN should not delete the block On "Too many open files" Exception
> -----------------------------------------------------------------
>
>                 Key: HDFS-11711
>                 URL: https://issues.apache.org/jira/browse/HDFS-11711
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>            Priority: Critical
>         Attachments: HDFS-11711-002.patch, HDFS-11711-003.patch, HDFS-11711-branch-2-002.patch,
HDFS-11711.patch
>
>
>  *Seen the following scenario in one of our customer environment* 
> * while jobclient writing {{"job.xml"}} there are pipeline failures and written to only
one DN.
> * when mapper reading the {{"job.xml"}}, DN got {{"Too many open files"}} (as system
exceed limit) and block got deleted. Hence mapper failed to read and job got failed.



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