[GitHub] [hadoop] functioner edited a comment on pull request #2727: HADOOP-17552. The read method of hadoop.ipc.Client$Connection$PingInputStream may swallow java.net.SocketTimeoutException due to the mistaken usage of the rpcTimeout configuration

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functioner edited a comment on pull request #2727:
URL: https://github.com/apache/hadoop/pull/2727#issuecomment-787675224


   > @functioner see TestRPC#testClientRpcTimeout
   > Maybe It is expected that Send ping all the time when _ipc.client.rpc-timeout.ms_ less than 0.
   
   @ferhui If this is expected, then the client should be able to automatically request a new connection rather than blindly waiting for the problematic connection it currently uses. Otherwise this endless waiting is meaningless, because now it's impossible for the server to add this connection to its Reader. In this case, timeout is better, because the user at least can be aware of this issue.


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