[jira] [Assigned] (HDFS-5522) Datanode disk error check may be incorrectly skipped

["Rushabh S Shah (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-5522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rushabh S Shah reassigned HDFS-5522:
------------------------------------

    Assignee: Rushabh S Shah

> Datanode disk error check may be incorrectly skipped
> ----------------------------------------------------
>
>                 Key: HDFS-5522
>                 URL: https://issues.apache.org/jira/browse/HDFS-5522
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.23.9, 2.2.0
>            Reporter: Kihwal Lee
>            Assignee: Rushabh S Shah
>
> After HDFS-4581 and HDFS-4699, {{checkDiskError()}} is not called when network errors occur during processing data node requests.  This appears to create problems when a disk is having problems, but not failing I/O soon. 
> If I/O hangs for a long time, network read/write may timeout first and the peer may close the connection. Although the error was caused by a faulty local disk, disk check is not being carried out in this case. 



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