[HBASE-1645] HBase could be a little more dainty when zk is pulled out from under it

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Assignee: Unassigned
• Reporter: Michael Stack
• Created: 10/Jul/09 23:04
• Updated: 11/Jun/22 20:48
• Resolved: 13/Apr/13 01:09

Description

Currently does this over and over:

#
2009-07-10 22:43:44,553 [main-SendThread] INFO org.apache.zookeeper.ClientCnxn: Server connection successful
#
2009-07-10 22:43:44,596 [main-SendThread] WARN org.apache.zookeeper.ClientCnxn: Exception closing session 0x12266d1f85e0000 to sun.nio.ch.SelectionKeyImpl@54a9387
#
java.io.IOException: Read error rc = -1 java.nio.DirectByteBuffer[pos=0 lim=4 cap=4]
#
        at org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:653)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:897)
#
2009-07-10 22:43:44,596 [main-SendThread] WARN org.apache.zookeeper.ClientCnxn: Ignoring exception during shutdown input
#
java.net.SocketException: Transport endpoint is not connected
#
        at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
#
        at sun.nio.ch.SocketChannelImpl.shutdownInput(Unknown Source)
#
        at sun.nio.ch.SocketAdaptor.shutdownInput(Unknown Source)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:951)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)
#
2009-07-10 22:43:44,596 [main-SendThread] WARN org.apache.zookeeper.ClientCnxn: Ignoring exception during shutdown output
#
java.net.SocketException: Transport endpoint is not connected
#
        at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
#
        at sun.nio.ch.SocketChannelImpl.shutdownOutput(Unknown Source)
#
        at sun.nio.ch.SocketAdaptor.shutdownOutput(Unknown Source)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:956)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)
#
2009-07-10 22:43:44,803 [main-SendThread] INFO org.apache.zookeeper.ClientCnxn: Attempting connection to server aa0-000-12.u.powerset.com/fdfb:c1e8:7640:2:2e0:81ff:fe40:8826:2181
#
2009-07-10 22:43:44,803 [main-SendThread] INFO org.apache.zookeeper.ClientCnxn: Priming connection to java.nio.channels.SocketChannel[connected local=/fdfb:c1e8:7640:2:2e0:81ff:fe41:b98a:47170 remote=aa0-000-12.u.powerset.com/fdfb:c1e8:7640:2:2e0:81ff:fe40:8826:2181]
#
2009-07-10 22:43:44,803 [main-SendThread] INFO org.apache.zookeeper.ClientCnxn: Server connection successful
#
2009-07-10 22:43:44,806 [main-SendThread] WARN org.apache.zookeeper.ClientCnxn: Exception closing session 0x12266d1f85e0000 to sun.nio.ch.SelectionKeyImpl@631b86c7
#
java.io.IOException: Read error rc = -1 java.nio.DirectByteBuffer[pos=0 lim=4 cap=4]
#
        at org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:653)
#
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:897)
#
2009-07-10 22:43:44,806 [main-SendThread] WARN org.apache.zookeeper.ClientCnxn: Ignoring exception during shutdown input
...

You then have to do killjava -9 to get it to go down.

Here is related mail: http://mail-archives.apache.org/mod_mbox/hadoop-zookeeper-user/200906.mbox/[e-mail]%3E

This is not a biggy. Just noting it. No ZK, no HB.