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:quorumpeercon...@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:quorumpeerm...@104] - Either no config or no quorum defined in config, running in standalone mode 2009-09-01 00:42:43,560 - INFO [main:quorumpeercon...@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:zookeeperserverm...@94] - Starting server 2009-09-01 00:42:43,573 - INFO [main:environm...@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:environm...@97] - Server environment:host.name=ind104.an.dev.fastclick.net 2009-09-01 00:42:43,574 - INFO [main:environm...@97] - Server environment:java.version=1.6.0_14 2009-09-01 00:42:43,575 - INFO [main:environm...@97] - Server environment:java.vendor=Sun Microsystems Inc. 2009-09-01 00:42:43,576 - INFO [main:environm...@97] - Server environment:java.home=/home/lcuff/java/jre1.6.0_14 2009-09-01 00:42:43,577 - INFO [main:environm...@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:environm...@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:environm...@97] - Server environment:java.io.tmpdir=/tmp 2009-09-01 00:42:43,579 - INFO [main:environm...@97] - Server environment:java.compiler=<NA> 2009-09-01 00:42:43,580 - INFO [main:environm...@97] - Server environment:os.name=Linux 2009-09-01 00:42:43,580 - INFO [main:environm...@97] - Server environment:os.arch=amd64 2009-09-01 00:42:43,581 - INFO [main:environm...@97] - Server environment:os.version=2.6.9-55.ELsmp 2009-09-01 00:42:43,582 - INFO [main:environm...@97] - Server environment:user.name=vcm 2009-09-01 00:42:43,585 - INFO [main:environm...@97] - Server environment:user.home=/vcm/home 2009-09-01 00:42:43,586 - INFO [main:environm...@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:files...@81] - Reading snapshot /vcm/home/zoo/zookeeper-3.2.0/snap/version-2/snapshot.23d 2009-09-01 00:42:43,687 - INFO [main:filetxnsnap...@208] - Snapshotting: 2a2 2009-09-01 00:43:04,609 - INFO [NIOServerCxn.Factory:2181:nioserverc...@586] - Connected to /192.168.68.107:50461 lastZxid 0 2009-09-01 00:43:04,611 - INFO [NIOServerCxn.Factory:2181:nioserverc...@618] - Creating new session 0x123730dbe6e0000 2009-09-01 00:43:04,667 - INFO [SyncThread:0:nioserverc...@967] - Finished init of 0x123730dbe6e0000 valid:true 2009-09-01 00:43:10,540 - WARN [NIOServerCxn.Factory:2181:nioserverc...@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:nioserverc...@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:nioserverc...@586] - Connected to /192.168.68.107:50463 lastZxid 0 2009-09-01 00:43:18,026 - INFO [NIOServerCxn.Factory:2181:nioserverc...@618] - Creating new session 0x123730dbe6e0001 2009-09-01 00:43:18,056 - INFO [SyncThread:0:nioserverc...@967] - Finished init of 0x123730dbe6e0001 valid:true 2009-09-01 00:43:20,002 - INFO [SessionTracker:sessiontrackeri...@133] - Expiring session 0x123730dbe6e0000 2009-09-01 00:43:20,003 - INFO [SessionTracker:zookeeperser...@325] - Expiring session 0x123730dbe6e0000 2009-09-01 00:43:20,003 - INFO [ProcessThread:-1:preprequestproces...@384] - Processed session termination request for id: 0x123730dbe6e0000 2009-09-01 00:43:23,035 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e27 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,063 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e28 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e29 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,077 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e2a zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e2b zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,085 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e2c zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e32 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,125 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e36 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e3b zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,137 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e3c zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e3d zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,145 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e3e zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e3f zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:43:23,153 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e40 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0001 type:create cxid:0x4a9c6e41 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:44:08,212 - WARN [NIOServerCxn.Factory:2181:nioserverc...@497] - Exception causing close of session 0x123730dbe6e0001 due to java.io.IOException: Read error 2009-09-01 00:44:08,214 - INFO [NIOServerCxn.Factory:2181:nioserverc...@836] - closing session:0x123730dbe6e0001 NIOServerCnxn: java.nio.channels.SocketChannel[connected local=/192.168.68.107:2181 remote=/192.168.68.107:50463] 2009-09-01 00:44:18,002 - INFO [SessionTracker:sessiontrackeri...@133] - Expiring session 0x123730dbe6e0001 2009-09-01 00:44:18,002 - INFO [SessionTracker:zookeeperser...@325] - Expiring session 0x123730dbe6e0001 2009-09-01 00:44:18,003 - INFO [ProcessThread:-1:preprequestproces...@384] - Processed session termination request for id: 0x123730dbe6e0001 2009-09-01 00:48:55,991 - INFO [NIOServerCxn.Factory:2181:nioserverc...@586] - Connected to /192.168.68.107:50464 lastZxid 0 2009-09-01 00:48:55,991 - INFO [NIOServerCxn.Factory:2181:nioserverc...@618] - Creating new session 0x123730dbe6e0002 2009-09-01 00:48:56,020 - INFO [SyncThread:0:nioserverc...@967] - Finished init of 0x123730dbe6e0002 valid:true 2009-09-01 00:49:00,992 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f78 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f79 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,059 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7a zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7b zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,071 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7c zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7d zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,080 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7e zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f7f zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,108 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f80 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f81 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,125 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f83 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f87 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,150 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f8c zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f8d zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,179 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f8e zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f8f zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,204 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f90 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f91 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists at org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess or.java:245) at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja va:114) 2009-09-01 00:49:01,224 - WARN [ProcessThread:-1:preprequestproces...@402] - Got exception when processing sessionid:0x123730dbe6e0002 type:create cxid:0x4a9c6f92 zxid:0xfffffffffffffffe txntype:unknown n/a org.apache.zookeeper.KeeperException$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:nioserverc...@586] - Connected to /192.168.68.107:50465 lastZxid 0 2009-09-01 00:49:15,492 - INFO [NIOServerCxn.Factory:2181:nioserverc...@618] - Creating new session 0x123730dbe6e0003 2009-09-01 00:49:15,520 - INFO [SyncThread:0:nioserverc...@967] - Finished init of 0x123730dbe6e0003 valid:true 2009-09-01 00:52:16,321 - WARN [NIOServerCxn.Factory:2181:nioserverc...@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:nioserverc...@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:sessiontrackeri...@133] - Expiring session 0x123730dbe6e0002 2009-09-01 00:52:26,002 - INFO [SessionTracker:zookeeperser...@325] - Expiring session 0x123730dbe6e0002 2009-09-01 00:52:26,003 - INFO [ProcessThread:-1:preprequestproces...@384] - 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