nope. I always pass 0 as clientid.
Łukasz On Tue, Mar 16, 2010 at 16:20, Benjamin Reed <br...@yahoo-inc.com> wrote: > do you ever use zookeeper_init() with the clientid field set to something > other than null? > > ben > > On 03/16/2010 07:43 AM, Łukasz Osipiuk wrote: >> >> Hi everyone! >> >> I am writing to this group because recently we are getting some >> strange errors with our production zookeeper setup. >> >> From time to time we are observing that our client application (C++ >> based) disconnects from zookeeper (session state is changed to 1) and >> reconnects (state changed to 3). >> This itself is not a problem - usually application continues to run >> without problems after reconnect. >> But from time to time after above happens all subsequent operations >> start to return ZSESSIONMOVED error. To make it work again we have to >> restart application (which creates new zookeeper session). >> >> I noticed that in 3.2.0 introduced a bug >> http://issues.apache.org/jira/browse/ZOOKEEPER-449 but we are using >> zookeeper v. 3.2.2. >> I just noticed that app at compile time used 3.2.0 library but patches >> fixing bug 449 did not touch C client lib so I believe that our >> problems are not >> related with that. >> >> In zookeeper logs at moment which initiated the problem with client >> application I have >> >> node1: >> 2010-03-16 14:21:43,510 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@607] - Connected to >> /10.1.112.61:37197 lastZxid 42992576502 >> 2010-03-16 14:21:43,510 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@636] - Renewing session >> 0x324dcc1ba580085 >> 2010-03-16 14:21:49,443 - INFO >> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:nioserverc...@992] - Finished init >> of 0x324dcc1ba580085 valid:true >> 2010-03-16 14:21:49,443 - WARN >> [NIOServerCxn.Factory:2181:nioserverc...@518] - Exception causing >> close of session 0x324dcc1ba580085 due to java.io.IOException: Read >> error >> 2010-03-16 14:21:49,444 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@857] - closing >> session:0x324dcc1ba580085 NIOServerCnxn: >> java.nio.channels.SocketChannel[connected local=/10.1.112.62:2181 >> remote=/10.1.112.61:37197] >> >> node2: >> 2010-03-16 14:21:40,580 - WARN >> [NIOServerCxn.Factory:2181:nioserverc...@494] - Exception causing >> close of session 0x324dcc1ba580085 due to java.io.IOException: Read >> error >> 2010-03-16 14:21:40,581 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@833] - closing >> session:0x324dcc1ba580085 NIOServerCnxn: >> java.nio.channels.SocketChannel[connected local=/10.1.112.63:2181 >> remote=/10.1.112.61:60693] >> 2010-03-16 14:21:46,839 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@583] - Connected to >> /10.1.112.61:48336 lastZxid 42992576502 >> 2010-03-16 14:21:46,839 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@612] - Renewing session >> 0x324dcc1ba580085 >> 2010-03-16 14:21:49,439 - INFO >> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:nioserverc...@964] - Finished init >> of 0x324dcc1ba580085 valid:true >> >> node3: >> 2010-03-16 02:14:48,961 - WARN >> [NIOServerCxn.Factory:2181:nioserverc...@494] - Exception causing >> close of session 0x324dcc1ba580085 due to java.io.IOException: Read >> error >> 2010-03-16 02:14:48,962 - INFO >> [NIOServerCxn.Factory:2181:nioserverc...@833] - closing >> session:0x324dcc1ba580085 NIOServerCnxn: >> java.nio.channels.SocketChannel[connected local=/10.1.112.64:2181 >> remote=/10.1.112.61:57309] >> >> and then lots of entries like this >> 2010-03-16 02:14:54,696 - WARN >> [ProcessThread:-1:preprequestproces...@402] - Got exception when >> processing sessionid:0x324dcc1ba580085 type:create cxid:0x4b9e9e49 >> zxid:0xfffffffffffffffe txntype:unknown >> /locks/9871253/lock-8589943989- >> org.apache.zookeeper.KeeperException$SessionMovedException: >> KeeperErrorCode = Session moved >> at >> org.apache.zookeeper.server.SessionTrackerImpl.checkSession(SessionTrackerImpl.java:231) >> at >> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:211) >> at >> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114) >> 2010-03-16 14:22:06,428 - WARN >> [ProcessThread:-1:preprequestproces...@402] - Got exception when >> processing sessionid:0x324dcc1ba580085 type:create cxid:0x4b9f6603 >> zxid:0xfffffffffffffffe txntype:unknown >> /locks/1665960/lock-8589961006- >> org.apache.zookeeper.KeeperException$SessionMovedException: >> KeeperErrorCode = Session moved >> at >> org.apache.zookeeper.server.SessionTrackerImpl.checkSession(SessionTrackerImpl.java:231) >> at >> org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:211) >> at >> org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114) >> >> >> To workaround disconnections I am going to increase session timeout >> from 5 to 15 seconds but event if it helps at all it is just a >> workaround. >> >> Do you have an idea where is the source of my problem. >> >> Regards, Łukasz Osipiuk >> >> >> >> > > -- -- Łukasz Osipiuk mailto:luk...@osipiuk.net
