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From GitBox <...@apache.org>
Subject [GitHub] [ignite] lev555 opened a new pull request #6897: IGNITE-12032 Improved warn message on abruptly closed client connection
Date Mon, 23 Sep 2019 06:25:46 GMT
lev555 opened a new pull request #6897: IGNITE-12032 Improved warn message on abruptly closed
client connection
URL: https://github.com/apache/ignite/pull/6897
 
 
   Issue:
   The exception is thrown on Ignite server side when user application closes thread with
client database connection.
   
   Root cause:
   Closed network connection from user application side, using thin client (ODBC or JDBC)
without notifying server about closing database connection itself. Server doesn't expect that
network connection is closed and we got WARN message from Ignite on server side: "Closing
NIO session because of unhandled exception" and the IOException from Java itself.
   
   Solution: 
   Make WARN message (in class GridNioServer) more user-friendly, giving a clue for user,
that connection.close() should be called before closing connection thread.

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