Review Request 27101: Fix KAFKA-1501 by enabling reuse address

[Guozhang Wang]

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Review request for kafka.


Bugs: KAFKA-1501
    https://issues.apache.org/jira/browse/KAFKA-1501


Repository: kafka


Description
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needs repeated unit tests to verify


Diffs
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  core/src/main/scala/kafka/network/SocketServer.scala 
cee76b323e5f3e4c783749ac9e78e1ef02897e3b 

Diff: https://reviews.apache.org/r/27101/diff/


Testing
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Thanks,

Guozhang Wang