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https://issues.apache.org/jira/browse/HADOOP-1739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy updated HADOOP-1739:
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Attachment: HADOOP-1739_1_20070823.patch
Straight-forward patch to remove port-rolling for
{{mapred.task.tracker.report.port}} ...
> ConnectException in TaskTracker Child
> -------------------------------------
>
> Key: HADOOP-1739
> URL: https://issues.apache.org/jira/browse/HADOOP-1739
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Environment: Version: 0.15.0-dev, r565628
> Compiled: Tue Aug 14 20:55:37 UTC 2007 by hadoopqa
> 1400 nodes
> Reporter: Srikanth Kakani
> Assignee: Arun C Murthy
> Priority: Blocker
> Attachments: HADOOP-1739_1_20070823.patch
>
>
> Steps to Reproduce:
> I had 11000 mappers and 2700 reducers in a job and most failures correspond
> to the following logs:
> Stderr:
> Exception in thread "main" java.net.ConnectException: Connection refused
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:193)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:519)
> at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:150)
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:530)
> at org.apache.hadoop.ipc.Client.call(Client.java:459)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:165)
> at org.apache.hadoop.mapred.$Proxy0.getProtocolVersion(Unknown Source)
> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:248)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1781)
> Syslog:
> 2007-08-19 18:45:07,490 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 1 time(s).
> 2007-08-19 18:45:08,494 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 2 time(s).
> 2007-08-19 18:45:09,497 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 3 time(s).
> 2007-08-19 18:45:10,500 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 4 time(s).
> 2007-08-19 18:45:11,503 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 5 time(s).
> 2007-08-19 18:45:12,506 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 6 time(s).
> 2007-08-19 18:45:13,508 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 7 time(s).
> 2007-08-19 18:45:14,511 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 8 time(s).
> 2007-08-19 18:45:15,512 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 9 time(s).
> 2007-08-19 18:45:16,515 INFO org.apache.hadoop.ipc.Client: Retrying connect
> to server: 0.0.0.0/0.0.0.0:50051. Already tried 10 time(s)
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