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https://issues.apache.org/jira/browse/ZOOKEEPER-547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763727#action_12763727
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Mahadev konar commented on ZOOKEEPER-547:
-----------------------------------------
stack trace with such rogue packets:
{code}
2009-10-08 19:47:35,063 - WARN [NIOServerCxn.Factory:2281:nioserverc...@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:nioserverc...@833] -
closing session:0x0 NIOServerCnxn: java.nio.channels.SocketChannel[connected
local=/***********:2281 remote=/*******:33530]
2009-10-08 19:47:41,961 - ERROR
[FollowerHandler-/*************:38326:followerhand...@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:followerhand...@421] - ******* GOODBYE
/***********:38326 ********
2009-10-08 19:49:19,409 - WARN [Thread-6:quorumcnxmanager$sendwor...@539] -
Interrupted while waiting for message on queue
java.lang.InterruptedException
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$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$sendwor...@554] -
Send worker leaving thread
2009-10-08 19:49:19,418 - WARN [Thread-7:quorumcnxmanager$recvwor...@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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