Hi Stefan,
There's a timing issue when the client closes the connection. It sends a
session close to the server and then starts to close it's own sockets.
If the server closes the socket before the client does you can sometimes
see the client get
java.net.SocketException: Socket is not connected
we are a bit paranoid about making sure you/we can debug unusual
situations, so we include the trace in the WARN message in the log, just
in case. In this situation though it is not an issue, in other
situations (say the server drops it's connection) it would help to have
the trace in a debugging situation, so we include it.
Btw, in general in the code if we are more concerned about an event we
would output as an ERROR, not as a WARN.
Patrick
Stefan Groschupf wrote:
Hi,
I managed to upgrade my zookeeper 2 application to zookeeper 3.1.1/
All my tests run though my logs is full of following exception.
In my code I basically just invoice ZooKeeper.close();
Any idea what the problem could be?
Thanks,
Stefan
09/03/27 02:07:51 INFO zookeeper.ZooKeeper:434 - Closing session:
0x120472f36480002
09/03/27 02:07:51 INFO zookeeper.ClientCnxn:999 - Closing ClientCnxn for
session: 0x120472f36480002
09/03/27 02:07:51 INFO server.PrepRequestProcessor:360 - Processed
session termination request for id: 0x120472f36480002
09/03/27 02:07:51 INFO server.NIOServerCnxn:752 - closing
session:0x120472f36480002 NIOServerCnxn:
java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1%0:2181
remote=/0:0:0:0:0:0:0:1%0:53636]
09/03/27 02:07:51 INFO zookeeper.ClientCnxn:892 - Exception while
closing send thread for session 0x120472f36480002 : Read error rc = -1
java.nio.DirectByteBuffer[pos=0 lim=4 cap=4]
09/03/27 02:07:51 WARN zookeeper.ClientCnxn:932 - Ignoring exception
during shutdown input
java.net.SocketException: Socket is not connected
at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
at
sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:640)
at sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
at
org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:930)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:915)
09/03/27 02:07:51 INFO zookeeper.ClientCnxn:985 - Disconnecting
ClientCnxn for session: 0x120472f36480002
09/03/27 02:07:51 INFO zookeeper.ZooKeeper:442 - Session:
0x120472f36480002 closed
