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From "Yajun Dong (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-693) java.net.SocketTimeoutException: 480000 millis timeout while waiting for channel to be ready for write exceptions were cast when trying to read file via StreamFile.
Date Mon, 12 Oct 2009 07:36:31 GMT

    [ https://issues.apache.org/jira/browse/HDFS-693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12764589#action_12764589
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Yajun Dong commented on HDFS-693:
---------------------------------

Furthermore, the exception in DataNode I see :

2009-10-12 09:43:47,261 INFO dfs.DFSClient: Could not obtain block blk_3304550638094049753
from any node: java.io.IOException: No live nodes contain current block

> java.net.SocketTimeoutException: 480000 millis timeout while waiting for channel to be
ready for write exceptions were cast when trying to read file via StreamFile.
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-693
>                 URL: https://issues.apache.org/jira/browse/HDFS-693
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>    Affects Versions: 0.20.1
>            Reporter: Yajun Dong
>         Attachments: HDFS-693.log
>
>
> To exclude the case of network problem, I found the count of  dataXceiver is about 30.
 Also, I could see the output of netstate -a | grep 50075 has many TIME_WAIT status when this
happened. (In Hadoop-0.19.0, this issue is never happened).
> partial log in attachment. 

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