hadoop-zookeeper-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Leonard Cuff <lc...@valueclick.com>
Subject Re: Creating ephemeral nodes: First time returns ZNODEEXISTS
Date Tue, 01 Sep 2009 05:18:33 GMT
Hi Patrick,

Thank you for your reply.  I owe you and the others on this list an apology.
It turns out I was creating the node twice, which I discovered after writing
a mini-program to demonstrate the problem  .... and the mini-program didn't
have the problem. That caused me to go back and look at my code even more
closely, when I discovered it was My Problem.

Thanks again for your quick reply and sorry to have wasted your time.

Leonard


On 8/31/09 9:16 PM, "Patrick Hunt" <phunt@apache.org> wrote:

> Hi Leonard,
> 
> Between 00:43:23,035 and 00:43:23,157 I see client session
> 0x123730dbe6e0001 get 15 "node exists" exceptions in a row. Are you
> expecting this? (ie are you attempting to create this node 15 times in a
> row or is this unexpected? I can't tell from the client snippet you
> included)
> 
> Are you using the multithreaded version of the client or the single
> threaded version? It would be useful if you could create a JIRA and
> attach the following:
> https://issues.apache.org/jira/browse/ZOOKEEPER
> 
> 1) create the jira and attach the client & server logs
> 2) attach zoo.cfg file
> 3) if you can attach a copy of your client code that would
> be interesting as well. In your email we see the create, however it
> would be interesting to see the session creation call you are doing
> and how the client is initialized.
> 
> I would also suggest that you examine the cli_mt or cli_st client that's
> included with the release (build cli.c in src/c/src).
> 
> Use this client to connect to your server and examine the node that your
> create_ephemeral_znode is operating on. For example try an get (create,
> etc...) call and check the stat information (if ephemeralOwner is zero
> then it's not an ephemeral node for example). You can also take a look
> at the code for cli.c (or the tests) for some examples of how to
> initialize/run a mt/st client process and compare it to your own. Btw,
> we suggest that users use the multi-threaded client whenever possible,
> unless ST is specifically required.
> 
> Patrick
> 
> Leonard Cuff wrote:
>> I've just upgraded to ZooKeeper 3.2.0, testing the fix for ephemeral nodes
>> disappearing correctly when the client process dies. I'm seeing some
>> unexpected behavior:
>> 
>> The first time I call zoo_create() to create an ephemeral node, it returns
>> ZNODEEXISTS, even if the node didn't previously exist. It successfully
>> creates the znode, and the znode is then available to write to. If I delete
>> the node and call zoo_create() a second time, it correctly returns ZOK.
>> 
>> I'm wondering if anyone else is seeing the same thing. I've spent quite a
>> bit of time checking my client code, and I'm pretty convinced this is
>> happening as described.
>> 
>> I see lots of exceptions in the log file. I'll append my client code, and
>> the log file.
>> 
>> Thanks for any and all input.
>> 
>> Leonard
>> 
>> create_ephemeral_znode ( char *znode ) {
>> 
>>     int         result;
>> 
>>     result = zoo_create ( zh, znode, NULL, 0, &ZOO_OPEN_ACL_UNSAFE,
>> ZOO_EPHEMERAL , NULL, 0 );
>> 
>>     if ( result == ZOK  ) {
>>         vcm_log_info ( logger, "ephemeral status node '%s' created
>> successfuly", znode);
>>         return SUCCESS;
>>     }   
>> 
>>     if ( result == ZNODEEXISTS ) {
>> 
>>         vcm_log_debug ( logger, "ephemeral status node '%s' already exists.
>> Will delete and recreate", znode);
>> 
>> 
>>         result = zoo_delete  (zh, znode, ANY_VERSION );
>>         vcm_log_info ( logger, "delete ephemeral node '%s' returned %d
>> (%s)", znode, result, zerror ( result ) );
>> 
>>         if ( result != ZOK && result != ZNONODE ) {
>>             vcm_log_error ( logger, "Couldn't delete ephemeral node '%s'
>> because %d (%s) %s at %d",
>>                     znode, result, zerror ( result ) , __FILE__, __LINE__);
>>         }   
>>         result = zoo_create ( zh, znode, NULL, 0, &ZOO_OPEN_ACL_UNSAFE,
>> ZOO_EPHEMERAL , NULL, 0 );
>> 
>>         if ( result == ZOK  ) {
>>             vcm_log_info ( logger, "ephemeral status node '%s' created
>> successfuly", znode);
>>             return SUCCESS;
>>         }   
>>         vcm_log_warn ( logger, "Can't create '%s' (err: %d : %s), %s at %d",
>>                 znode, result  , zerror ( result ), __FILE__, __LINE__);
>> 
>>         return ZOO_PATH_CREATION_FAILED;
>>     }   
>> 
>>     vcm_log_warn ( logger, "Can't create '%s' (err: %d : %s), %s at %d",
>>                 znode, result  , zerror ( result ), __FILE__, __LINE__);
>> 
>>     return ZOO_PATH_CREATION_FAILED;
>> 
>> }
>> 
>> 
>> --------------------------------------
>> 
>> 
>> JMX enabled by default
>> Starting zookeeper ...
>> zoopid file is /vcm/home/zoo/zookeeper-3.2.0/snap/zookeeper_server.pid
>> STARTED
>> 2009-09-01 00:42:43,535 - INFO  [main:QuorumPeerConfig@80] - Reading
>> configuration from:
>> /vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../conf/zoo.c
>> fg
>> 2009-09-01 00:42:43,539 - WARN  [main:QuorumPeerMain@104] - Either no config
>> or no quorum defined in config, running  in standalone mode
>> 2009-09-01 00:42:43,560 - INFO  [main:QuorumPeerConfig@80] - Reading
>> configuration from:
>> /vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../conf/zoo.c
>> fg
>> 2009-09-01 00:42:43,562 - INFO  [main:ZooKeeperServerMain@94] - Starting
>> server
>> 2009-09-01 00:42:43,573 - INFO  [main:Environment@97] - Server
>> environment:zookeeper.version=3.2.0-790261, built on 07/01/2009 16:49 GMT
>> 2009-09-01 00:42:43,574 - INFO  [main:Environment@97] - Server
>> environment:host.name=ind104.an.dev.fastclick.net
>> 2009-09-01 00:42:43,574 - INFO  [main:Environment@97] - Server
>> environment:java.version=1.6.0_14
>> 2009-09-01 00:42:43,575 - INFO  [main:Environment@97] - Server
>> environment:java.vendor=Sun Microsystems Inc.
>> 2009-09-01 00:42:43,576 - INFO  [main:Environment@97] - Server
>> environment:java.home=/home/lcuff/java/jre1.6.0_14
>> 2009-09-01 00:42:43,577 - INFO  [main:Environment@97] - Server
>> environment:java.class.path=/vcm/home/sandbox/ticket_161758-1/vcm/apps/zooke
>> eper-3.2.0/bin/../conf::/vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper
>> -3.2.0/bin/../zookeeper-3.2.0.jar:/vcm/home/sandbox/ticket_161758-1/vcm/apps
>> /zookeeper-3.2.0/bin/../lib/jdiff-1.0.9.jar:/vcm/home/sandbox/ticket_161758-
>> 1/vcm/apps/zookeeper-3.2.0/bin/../lib/jline-0.9.94.jar:/vcm/home/sandbox/tic
>> ket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../lib/junit-4.4.jar:/vcm/home/san
>> dbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../lib/log4j-1.2.15.jar:/v
>> cm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../lib/xerces-1
>> .4.4.jar:/vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/./s
>> rc/java/lib/jdiff-1.0.9.jar:/vcm/home/sandbox/ticket_161758-1/vcm/apps/zooke
>> eper-3.2.0/bin/../src/java/lib/jline-0.9.94.jar:/vcm/home/sandbox/ticket_161
>> 758-1/vcm/apps/zookeeper-3.2.0/bin/../src/java/lib/junit-4.4.jar:/vcm/home/s
>> andbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/../src/java/lib/log4j-1.
>> 2.15.jar:/vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.2.0/bin/./s
>> rc/java/lib/xerces-1.4.4.jar
>> 2009-09-01 00:42:43,577 - INFO  [main:Environment@97] - Server
>> environment:java.library.path=/home/lcuff/java/jre1.6.0_14/lib/amd64/server:
>> /home/lcuff/java/jre1.6.0_14/lib/amd64:/home/lcuff/java/jre1.6.0_14/../lib/a
>> md64:/vcm/home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/home/zoo/zookeeper-3.1.1
>> /src/c/.libs:/vcm/home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/home/zoo/zookeep
>> er-3.1.1/src/c/.libs:/vcm/home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/home/zoo
>> /zookeeper-3.1.1/src/c/.libs:/vcm/home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/
>> home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/home/zoo/zookeeper-3.1.1/src/c/.li
>> bs:/vcm/home/zoo/zookeeper-3.1.1/src/c/.libs:/vcm/home/sandbox/ticket_161758
>> -1/vcm/apps/apr-util/lib:/vcm/home/sandbox/ticket_161758-1/vcm/apps/apr/lib:
>> /vcm/home/sandbox/ticket_161758-1/vcm/apps/cunit/lib:/vcm/home/sandbox/ticke
>> t_161758-1/vcm/apps/curl-7.18.0/lib:/vcm/home/sandbox/ticket_161758-1/vcm/ap
>> ps/libevent/lib:/vcm/home/sandbox/ticket_161758-1/vcm/apps/libmemcached/lib:
>> /vcm/home/sandbox/ticket_161758-1/vcm/apps/spread/lib:/vcm/home/sandbox/tick
>> et_161758-1/vcm/apps/python/lib:/usr/java/packages/lib/amd64:/lib:/usr/lib
>> 2009-09-01 00:42:43,578 - INFO  [main:Environment@97] - Server
>> environment:java.io.tmpdir=/tmp
>> 2009-09-01 00:42:43,579 - INFO  [main:Environment@97] - Server
>> environment:java.compiler=<NA>
>> 2009-09-01 00:42:43,580 - INFO  [main:Environment@97] - Server
>> environment:os.name=Linux
>> 2009-09-01 00:42:43,580 - INFO  [main:Environment@97] - Server
>> environment:os.arch=amd64
>> 2009-09-01 00:42:43,581 - INFO  [main:Environment@97] - Server
>> environment:os.version=2.6.9-55.ELsmp
>> 2009-09-01 00:42:43,582 - INFO  [main:Environment@97] - Server
>> environment:user.name=vcm
>> 2009-09-01 00:42:43,585 - INFO  [main:Environment@97] - Server
>> environment:user.home=/vcm/home
>> 2009-09-01 00:42:43,586 - INFO  [main:Environment@97] - Server
>> environment:user.dir=/vcm/home/sandbox/ticket_161758-1/vcm/apps/zookeeper-3.
>> 2.0/bin
>> 2009-09-01 00:42:43,642 - INFO  [main:FileSnap@81] - Reading snapshot
>> /vcm/home/zoo/zookeeper-3.2.0/snap/version-2/snapshot.23d
>> 2009-09-01 00:42:43,687 - INFO  [main:FileTxnSnapLog@208] - Snapshotting:
>> 2a2
>> 2009-09-01 00:43:04,609 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@586] - Connected to
>> /192.168.68.107:50461 lastZxid 0
>> 2009-09-01 00:43:04,611 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@618] - Creating new session
>> 0x123730dbe6e0000
>> 2009-09-01 00:43:04,667 - INFO  [SyncThread:0:NIOServerCnxn@967] - Finished
>> init of 0x123730dbe6e0000 valid:true
>> 2009-09-01 00:43:10,540 - WARN
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@497] - Exception causing close of
>> session 0x123730dbe6e0000 due to java.io.IOException: Read error
>> 2009-09-01 00:43:10,541 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@836] - closing
>> session:0x123730dbe6e0000 NIOServerCnxn:
>> java.nio.channels.SocketChannel[connected local=/192.168.68.107:2181
>> remote=/192.168.68.107:50461]
>> 2009-09-01 00:43:18,025 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@586] - Connected to
>> /192.168.68.107:50463 lastZxid 0
>> 2009-09-01 00:43:18,026 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@618] - Creating new session
>> 0x123730dbe6e0001
>> 2009-09-01 00:43:18,056 - INFO  [SyncThread:0:NIOServerCnxn@967] - Finished
>> init of 0x123730dbe6e0001 valid:true
>> 2009-09-01 00:43:20,002 - INFO  [SessionTracker:SessionTrackerImpl@133] -
>> Expiring session 0x123730dbe6e0000
>> 2009-09-01 00:43:20,003 - INFO  [SessionTracker:ZooKeeperServer@325] -
>> Expiring session 0x123730dbe6e0000
>> 2009-09-01 00:43:20,003 - INFO  [ProcessThread:-1:PrepRequestProcessor@384]
>> - Processed session termination request for id: 0x123730dbe6e0000
>> 2009-09-01 00:43:23,035 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e27 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,063 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e28 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,073 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e29 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,077 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e2a zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,081 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e2b zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,085 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e2c zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,110 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e32 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,125 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e36 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,135 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e3b zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,137 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e3c zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,141 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e3d zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,145 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e3e zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,149 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e3f zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,153 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e40 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:43:23,157 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0001 type:create
>> cxid:0x4a9c6e41 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:44:08,212 - WARN
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@497] - Exception causing close of
>> session 0x123730dbe6e0001 due to java.io.IOException: Read error
>> 2009-09-01 00:44:08,214 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@836] - closing
>> session:0x123730dbe6e0001 NIOServerCnxn:
>> java.nio.channels.SocketChannel[connected local=/192.168.68.107:2181
>> remote=/192.168.68.107:50463]
>> 2009-09-01 00:44:18,002 - INFO  [SessionTracker:SessionTrackerImpl@133] -
>> Expiring session 0x123730dbe6e0001
>> 2009-09-01 00:44:18,002 - INFO  [SessionTracker:ZooKeeperServer@325] -
>> Expiring session 0x123730dbe6e0001
>> 2009-09-01 00:44:18,003 - INFO  [ProcessThread:-1:PrepRequestProcessor@384]
>> - Processed session termination request for id: 0x123730dbe6e0001
>> 2009-09-01 00:48:55,991 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@586] - Connected to
>> /192.168.68.107:50464 lastZxid 0
>> 2009-09-01 00:48:55,991 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@618] - Creating new session
>> 0x123730dbe6e0002
>> 2009-09-01 00:48:56,020 - INFO  [SyncThread:0:NIOServerCnxn@967] - Finished
>> init of 0x123730dbe6e0002 valid:true
>> 2009-09-01 00:49:00,992 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f78 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,027 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f79 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,059 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7a zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,067 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7b zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,071 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7c zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,075 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7d zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,080 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7e zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,083 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f7f zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,108 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f80 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,116 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f81 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,125 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f83 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,134 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f87 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,150 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f8c zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,164 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f8d zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,179 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f8e zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,192 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f8f zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,204 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f90 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,220 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f91 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:01,224 - WARN  [ProcessThread:-1:PrepRequestProcessor@402]
>> - Got exception when processing sessionid:0x123730dbe6e0002 type:create
>> cxid:0x4a9c6f92 zxid:0xfffffffffffffffe txntype:unknown n/a
>> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
>> NodeExists
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
>> or.java:245)
>>     at 
>> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
>> va:114)
>> 2009-09-01 00:49:15,492 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@586] - Connected to
>> /192.168.68.107:50465 lastZxid 0
>> 2009-09-01 00:49:15,492 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@618] - Creating new session
>> 0x123730dbe6e0003
>> 2009-09-01 00:49:15,520 - INFO  [SyncThread:0:NIOServerCnxn@967] - Finished
>> init of 0x123730dbe6e0003 valid:true
>> 2009-09-01 00:52:16,321 - WARN
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@497] - Exception causing close of
>> session 0x123730dbe6e0002 due to java.io.IOException: Read error
>> 2009-09-01 00:52:16,323 - INFO
>> [NIOServerCxn.Factory:2181:NIOServerCnxn@836] - closing
>> session:0x123730dbe6e0002 NIOServerCnxn:
>> java.nio.channels.SocketChannel[connected local=/192.168.68.107:2181
>> remote=/192.168.68.107:50464]
>> 2009-09-01 00:52:26,002 - INFO  [SessionTracker:SessionTrackerImpl@133] -
>> Expiring session 0x123730dbe6e0002
>> 2009-09-01 00:52:26,002 - INFO  [SessionTracker:ZooKeeperServer@325] -
>> Expiring session 0x123730dbe6e0002
>> 2009-09-01 00:52:26,003 - INFO  [ProcessThread:-1:PrepRequestProcessor@384]
>> - Processed session termination request for id: 0x123730dbe6e0002
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> This email and any files included with it may contain privileged,
>> proprietary and/or confidential information that is for the sole use
>> of the intended recipient(s).  Any disclosure, copying, distribution,
>> posting, or use of the information contained in or attached to this
>> email is prohibited unless permitted by the sender.  If you have
>> received this email in error, please immediately notify the sender
>> via return email, telephone, or fax and destroy this original transmission
>> and its included files without reading or saving it in any manner.
>> Thank you.
>> 

-- 

Leonard Cuff
lcuff@valueclick.com

³This email and any files included with it may contain privileged,
proprietary and/or confidential information that is for the sole use of the
intended recipient(s).  Any disclosure, copying, distribution, posting, or
use of the information contained in or attached to this email is prohibited
unless permitted by the sender.  If you have received this email in error,
please immediately notify the sender via return e-mail, telephone, or fax
and destroy this original transmission and its included files without
reading or saving it in any manner. Thank you.²






This email and any files included with it may contain privileged,
proprietary and/or confidential information that is for the sole use
of the intended recipient(s).  Any disclosure, copying, distribution,
posting, or use of the information contained in or attached to this
email is prohibited unless permitted by the sender.  If you have
received this email in error, please immediately notify the sender
via return email, telephone, or fax and destroy this original transmission
and its included files without reading or saving it in any manner.
Thank you.


Mime
View raw message