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https://issues.apache.org/jira/browse/ZOOKEEPER-1043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14720484#comment-14720484
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Chris Conroy commented on ZOOKEEPER-1043:
-----------------------------------------
FWIW: I've had folks running 3.5.1-alpha in development for a couple of weeks
now, and so far I have not received any reports of this issue after the upgrade.
> Looped NPE at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:244)
> -------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1043
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1043
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.3.3, 3.4.6
> Environment: Sparc Solaris 10 and 11
> Java 6u17 64 bits
> 5 nodes ensemble
> Reporter: César Álvarez Núñez
> Attachments: ZOOKEEPER-1043.patch, ZOOKEEPER_1043-logfile.new,
> looped-npe-redacted-stack-dump.txt
>
>
> I'm sorry but I only have this log (which belongs to a "follower" node) and a
> previous message [Unexpected NodeCreated event after a
> reconnection.|http://mail-archives.apache.org/mod_mbox/zookeeper-user/201103.mbox/%[email protected]%3E]
> where I describe a potential side-effect at client side.
> {noformat}
> 2011-04-04 09:31:09,608 - INFO [Snapshot Thread:FileTxnSnapLog@208][] -
> Snapshotting: 1700527e36
> 2011-04-04 09:31:09,653 - INFO [SyncThread:1:FileTxnLog@197][] - Creating
> new log file: log.1700527e38
> 2011-04-04 10:13:39,287 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@251][] -
> Accepted socket connection from /XXX.XXX.XXX.69:1093
> 2011-04-04 10:13:39,371 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn@777][] - Client
> attempting to establish new session at /XXX.XXX.XXX.69:1093
> 2011-04-04 10:13:39,376 - INFO [CommitProcessor:1:NIOServerCnxn@1580][] -
> Established session 0x12ee79c4a720022 with negotiated timeout 20000 for
> client /XXX.XXX.XXX.69:1093
> 2011-04-04 12:04:11,131 - INFO [SyncThread:1:FileTxnLog@197][] - Creating
> new log file: log.170053bf15
> 2011-04-04 12:04:11,131 - INFO [Snapshot Thread:FileTxnSnapLog@208][] -
> Snapshotting: 170053bf17
> 2011-04-04 12:13:10,779 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@251][] -
> Accepted socket connection from /XXX.XXX.XXX.63:1817
> 2011-04-04 12:13:10,790 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn@777][] - Client
> attempting to establish new session at /XXX.XXX.XXX.63:1817
> 2011-04-04 12:13:10,794 - INFO [CommitProcessor:1:NIOServerCnxn@1580][] -
> Established session 0x12ee79c4a720023 with negotiated timeout 20000 for
> client /XXX.XXX.XXX.63:1817
> 2011-04-04 12:13:10,814 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn@634][] -
> EndOfStreamException: Unable to read additional data from client sessionid
> 0x12ee79c4a720023, likely client has closed socket
> 2011-04-04 12:13:10,816 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn@1435][] - Closed
> socket connection for client /XXX.XXX.XXX.63:1817 which had sessionid
> 0x12ee79c4a720023
> 2011-04-04 12:13:10,839 - INFO
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@251][] -
> Accepted socket connection from /XXX.XXX.XXX.63:1814
> 2011-04-04 12:13:10,840 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@274][] -
> Ignoring exception
> java.net.SocketException: Invalid argument
> at sun.nio.ch.Net.setIntOption0(Native Method)
> at sun.nio.ch.Net.setIntOption(Unknown Source)
> at sun.nio.ch.SocketChannelImpl$1.setInt(Unknown Source)
> at sun.nio.ch.SocketOptsImpl.setBoolean(Unknown Source)
> at sun.nio.ch.SocketOptsImpl$IP$TCP.noDelay(Unknown Source)
> at sun.nio.ch.OptionAdaptor.setTcpNoDelay(Unknown Source)
> at sun.nio.ch.SocketAdaptor.setTcpNoDelay(Unknown Source)
> at
> org.apache.zookeeper.server.NIOServerCnxn.<init>(NIOServerCnxn.java:1367)
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.createConnection(NIOServerCnxn.java:215)
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:256)
> 2011-04-04 12:13:10,841 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@272][] -
> Ignoring unexpected runtime exception
> java.lang.NullPointerException
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:244)
> 2011-04-04 12:13:10,841 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@272][] -
> Ignoring unexpected runtime exception
> java.lang.NullPointerException
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:244)
> 2011-04-04 12:13:10,842 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@272][] -
> Ignoring unexpected runtime exception
> java.lang.NullPointerException
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:244)
> ...
> ...
> ...
> 2011-04-04 16:49:23,101 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2301:NIOServerCnxn$Factory@272][] -
> Ignoring unexpected runtime exception
> java.lang.NullPointerException
> at
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:244)
> {noformat}
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