Github user rezasafi commented on the issue:
https://github.com/apache/spark/pull/22325
Looking at the unit-test.log and stacktrace the failed test doesn't seem to
be related to this change. There is errors like this
`18/09/19 20:47:53.776 shuffle-server-4270-1 ERROR TransportRequestHandler:
Error sending result RpcResponse{requestId=6746278841050456034,
body=NioManagedBuffer{buf=java.nio.HeapByteBuffer[pos=0 lim=0 cap=0]}} to
/127.0.0.1:48772; closing connection
io.netty.handler.codec.EncoderException: java.lang.OutOfMemoryError: Java
heap space`
and
`18/09/19 20:47:53.779 shuffle-client-4263-1 ERROR
TransportResponseHandler: Still have 1 requests outstanding when connection
from localhost/127.0.0.1:43662 is closed
18/09/19 20:47:53.780 shuffle-client-4263-1 ERROR
NettyBlockTransferService: Error while uploading test_a1
java.io.IOException: Connection from localhost/127.0.0.1:43662 closed
`
Sounds flaky
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