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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3704) In the DFSClient, Add the node to the dead list when the ipc.Client calls fails
Date Wed, 06 May 2015 03:37:58 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HDFS-3704:
-----------------------------------
    Labels: BB2015-05-TBR  (was: )

> In the DFSClient, Add the node to the dead list when the ipc.Client calls fails
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-3704
>                 URL: https://issues.apache.org/jira/browse/HDFS-3704
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 1.0.3, 2.0.0-alpha
>            Reporter: Nicolas Liochon
>            Priority: Minor
>              Labels: BB2015-05-TBR
>         Attachments: HADOOP-3704.patch
>
>
> The DFSCLient maintains a list of dead node per input steam. When creating this DFSInputStream,
it may connect to one of the nodes to check final block size. If this call fail, this datanode
should be put in the dead nodes list to save time. If not it will be retried for the block
transfer during the read, and we're likely to get a timeout.



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