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https://issues.apache.org/jira/browse/HDFS-13515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471170#comment-16471170
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Ted Yu edited comment on HDFS-13515 at 9/17/18 11:01 PM:
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Can you log the remote address in case of exception ?
Thanks
was (Author: yuzhih...@gmail.com):
Can you log the remote address in case of exception?
Thanks
> NetUtils#connect should log remote address for NoRouteToHostException
> ---------------------------------------------------------------------
>
> Key: HDFS-13515
> URL: https://issues.apache.org/jira/browse/HDFS-13515
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ted Yu
> Priority: Minor
>
> {code}
> hdfs.BlockReaderFactory: I/O error constructing remote block reader.
> java.net.NoRouteToHostException: No route to host
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
> at org.apache.hadoop.hdfs.DFSClient.newConnectedPeer(DFSClient.java:2884)
> {code}
> In the above stack trace, the remote host was not logged.
> This makes troubleshooting a bit hard.
> NetUtils#connect should log remote address for NoRouteToHostException .
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