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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3564) Sometime after successful hod allocation datanode fails to come up with java.net.BindException for dfs.datanode.ipc.address
Date Tue, 17 Jun 2008 17:27:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605665#action_12605665
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-3564:
------------------------------------------------

The ipc port numbers of datanodes can be different since the datanodes will inform the NameNode
about the ipc port they are using during datanode registration.

> Sometime after successful  hod allocation datanode fails to come up with java.net.BindException
for dfs.datanode.ipc.address
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3564
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3564
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>    Affects Versions: 0.18.0
>            Reporter: Karam Singh
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: HADOOP-3564.1
>
>
> From Jira: HADOOP-3283 which introduced new conf parameter dfs.datanode.ipc.address which
defaults to 50020.
> When static dfs of hadoop version 0.18.0 running and its conf is not having dfs.datanode.ipc.address
specified, then datanode start with 50020 port for ipc, w
> When we  use  hod allocate without using static dfs.datanode on some machine fails to
come. On further investigation  it has been found sometimes when torque provides list nodes,
that list also contain some static dfs node.
> When hodring tries to start datanode on a machine where a static dfs datanode of hadoop
0.18.0 is running, hod's dynamic dfs datanode fails to come with exception -: java.net.BindException:
Problem binding to /0.0.0.0:50020 : Address already in use
> beacuse hod provides ports for dfs.datanode.address and dfs.datanode.http.address. 
>  

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