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Posted to common-dev@hadoop.apache.org by "Raghu Angadi (JIRA)" <ji...@apache.org> on 2009/03/11 21:54:51 UTC

[jira] Updated: (HADOOP-5464) DFSClient does not treat write timeout of 0 properly

     [ https://issues.apache.org/jira/browse/HADOOP-5464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raghu Angadi updated HADOOP-5464:
---------------------------------

    Attachment: HADOOP-5464.patch

patch for trunk.

> DFSClient does not treat write timeout of 0 properly
> ----------------------------------------------------
>
>                 Key: HADOOP-5464
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5464
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>         Attachments: HADOOP-5464.patch
>
>
> {{dfs.datanode.socket.write.timeout}} is used for sockets to and from datanodes. It is 8 minutes by default. Some users set this to 0, effectively disabling the write timeout (for some specific reasons). 
> When this is set to 0, DFSClient sets the timeout to 5 seconds by mistake while writing to DataNodes. This is exactly the opposite of real intention of setting it to 0 since 5 seconds is too short.

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