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Posted to dev@zookeeper.apache.org by "Mahadev konar (JIRA)" <ji...@apache.org> on 2009/10/09 00:09:31 UTC
[jira] Commented: (ZOOKEEPER-547) Sanity check in QuorumCnxn
Manager and quorum communication port.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763727#action_12763727 ]
Mahadev konar commented on ZOOKEEPER-547:
-----------------------------------------
stack trace with such rogue packets:
{code}
2009-10-08 19:47:35,063 - WARN [NIOServerCxn.Factory:2281:NIOServerCnxn@494] - Exception causing close of session 0x0 due to java.io.IOException: Len error -720899
2009-10-08 19:47:35,064 - INFO [NIOServerCxn.Factory:2281:NIOServerCnxn@833] - closing session:0x0 NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/***********:2281 remote=/*******:33530]
2009-10-08 19:47:41,961 - ERROR [FollowerHandler-/*************:38326:FollowerHandler@415] - Unexpected exception causing shutdown while sock still open
java.io.IOException: Unreasonable length = -195059
at org.apache.jute.BinaryInputArchive.readBuffer(BinaryInputArchive.java:100)
at org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:68)
at org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:108)
at org.apache.zookeeper.server.quorum.FollowerHandler.run(FollowerHandler.java:215)
2009-10-08 19:47:41,962 - WARN [FollowerHandler-/***********:38326:FollowerHandler@421] - ******* GOODBYE /***********:38326 ********
2009-10-08 19:49:19,409 - WARN [Thread-6:QuorumCnxManager$SendWorker@539] - Interrupted while waiting for message on queue
java.lang.InterruptedException
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:1899)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1934)
at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317)
at org.apache.zookeeper.server.quorum.QuorumCnxManager$SendWorker.run(QuorumCnxManager.java:533)
2009-10-08 19:49:19,410 - WARN [Thread-6:QuorumCnxManager$SendWorker@554] - Send worker leaving thread
2009-10-08 19:49:19,418 - WARN [Thread-7:QuorumCnxManager$RecvWorker@621] - Connection broken:
java.nio.channels.AsynchronousCloseException
at java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:185)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:263)
at org.apache.zookeeper.server.quorum.QuorumCnxManager$RecvWorker.run(QuorumCnxManager.java:609)
Exception in thread "Thread-9" java.lang.OutOfMemoryError: Java heap space
at org.apache.zookeeper.server.quorum.QuorumCnxManager$RecvWorker.run(QuorumCnxManager.java:605)
{code}
> Sanity check in QuorumCnxn Manager and quorum communication port.
> -----------------------------------------------------------------
>
> Key: ZOOKEEPER-547
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-547
> Project: Zookeeper
> Issue Type: Bug
> Components: leaderElection, server
> Affects Versions: 3.2.0, 3.2.1
> Reporter: Mahadev konar
> Assignee: Mahadev konar
> Fix For: 3.3.0
>
>
> We need to put some sanity checks in QuorumCnxnManager and the other quorum port for rogue clients. Sometimes a clients might get misconfigured and they might send random characters on such ports. We need to make sure that such rogue clients do not bring down the clients and need to put in some sanity checks with respect to packet lengths and deserialization.
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