Sweet. Perhaps you could update the FAQ or troubleshooting guide with your findings (ie the problem and how you debugged/fixed it), if you think it's appropriate?
https://cwiki.apache.org/confluence/display/ZOOKEEPER/Troubleshooting https://cwiki.apache.org/confluence/display/ZOOKEEPER/FAQ Patrick On Thu, Jun 7, 2012 at 2:17 PM, David Bosschaert <[email protected]> wrote: > Thanks for confirming this Patrick, this helped me isolate the problem > I was having. > It turned out that the problem was outside of Zookeeper and I have now > successfully been able to use Zookeeper in my environment. > > Thanks again, > > David > > On 30 May 2012 17:45, Patrick Hunt <[email protected]> wrote: >> This should work fine. Notice that while the connection is established >> the session is never established, eventually it times out. >> >> Have you tried running a 4 letter word and see if that at least works? >> http://zookeeper.apache.org/doc/r3.4.3/zookeeperAdmin.html#sc_zkCommands >> (try 'stat' for example) >> >> Was there anything further in the server log after the client >> attempted to connect? There should have been a message that the client >> was attempting to connect, if this is not the case then perhaps the >> firewall is blocking. Try the 4lw or using telnet to verify that your >> client can get past the firewall to the socket bound by the server. >> >> Patrick >> >> On Fri, May 25, 2012 at 2:23 PM, David Bosschaert >> <[email protected]> wrote: >>> Hi, >>> >>> I'm trying to use zookeeper in a cloud environment where I have an >>> extremely limited set of server ports available. >>> The setup is as follows. I want to run the ZooKeeper server inside my >>> cloud node so that it can be accessed from outside. In the node I can >>> open a Server Socket on an IP that looks like this 127.3.241.1:8080. >>> Port 8080 is then only Server Port I can open, no other ServerSockets >>> are allowed. >>> From the outside this gets translated into some host.somedomain.com:80 >>> (port 80!). >>> >>> The zkServer starts up fairly happy (I set >>> clientPortAddress=127.3.241.1 and clientPort=8080) - see the log >>> below. >>> >>> However, when I start the client console >>> $ bin/zkCli.sh -server host.somedomain.com:80 >>> it does not connect properly, and 'ls /' just hangs. I've also pasted >>> the log below >>> >>> My question is: is it possible to use ZooKeeper in such a restricted >>> environment at all? If so how should I configure it? >>> >>> Thanks, >>> >>> David >>> >>> Here's the server log: >>> remote: JMX disabled by user request >>> remote: Using config: >>> /var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../conf/zoo.cfg >>> remote: 2012-05-25 11:11:54,642 [myid:] - INFO >>> [main:QuorumPeerConfig@101] - Reading configuration from: >>> /var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../conf/zoo.cfg >>> remote: 2012-05-25 11:11:54,735 [myid:] - INFO >>> [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3 >>> remote: 2012-05-25 11:11:54,736 [myid:] - INFO >>> [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0 >>> remote: 2012-05-25 11:11:54,737 [myid:] - INFO >>> [main:DatadirCleanupManager@101] - Purge task is not scheduled. >>> remote: 2012-05-25 11:11:54,738 [myid:] - WARN >>> [main:QuorumPeerMain@113] - Either no config or no quorum defined in >>> config, running in standalone mode >>> remote: 2012-05-25 11:11:55,053 [myid:] - INFO >>> [main:QuorumPeerConfig@101] - Reading configuration from: >>> /var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../conf/zoo.cfg >>> remote: 2012-05-25 11:11:55,054 [myid:] - INFO >>> [main:ZooKeeperServerMain@95] - Starting server >>> remote: 2012-05-25 11:11:55,142 [myid:] - INFO [main:Environment@98] >>> - Server environment:zookeeper.version=3.4.3-1240972, built on >>> 02/06/2012 10:48 GMT >>> remote: 2012-05-25 11:11:55,143 [myid:] - INFO [main:Environment@98] >>> - Server environment:host.name=ex-std-node68.prod.rhcloud.com >>> remote: 2012-05-25 11:11:55,143 [myid:] - INFO [main:Environment@98] >>> - Server environment:java.version=1.6.0_22 >>> remote: 2012-05-25 11:11:55,144 [myid:] - INFO [main:Environment@98] >>> - Server environment:java.vendor=Sun Microsystems Inc. >>> remote: 2012-05-25 11:11:55,144 [myid:] - INFO [main:Environment@98] >>> - Server environment:java.home=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre >>> remote: 2012-05-25 11:11:55,145 [myid:] - INFO [main:Environment@98] >>> - Server >>> environment:java.class.path=/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../build/classes:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../build/lib/*.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../lib/slf4j-log4j12-1.6.1.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../lib/slf4j-api-1.6.1.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../lib/netty-3.2.2.Final.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../lib/log4j-1.2.15.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../lib/jline-0.9.94.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../zookeeper-3.4.3.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../src/java/lib/*.jar:/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/repo/zookeeper-3.4.3/bin/../conf: >>> remote: 2012-05-25 11:11:55,146 [myid:] - INFO [main:Environment@98] >>> - Server >>> environment:java.library.path=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/lib/i386/server:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/lib/i386:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib >>> remote: 2012-05-25 11:11:55,147 [myid:] - INFO [main:Environment@98] >>> - Server environment:java.io.tmpdir=/tmp >>> remote: 2012-05-25 11:11:55,151 [myid:] - INFO [main:Environment@98] >>> - Server environment:java.compiler=<NA> >>> remote: 2012-05-25 11:11:55,152 [myid:] - INFO [main:Environment@98] >>> - Server environment:os.name=Linux >>> remote: 2012-05-25 11:11:55,153 [myid:] - INFO [main:Environment@98] >>> - Server environment:os.arch=i386 >>> remote: 2012-05-25 11:11:55,154 [myid:] - INFO [main:Environment@98] >>> - Server environment:os.version=2.6.32-220.17.1.el6.x86_64 >>> remote: 2012-05-25 11:11:55,155 [myid:] - INFO [main:Environment@98] >>> - Server environment:user.name=80d2b6413ce14d3eb25c86e33f69c275 >>> remote: 2012-05-25 11:11:55,230 [myid:] - INFO [main:Environment@98] >>> - Server >>> environment:user.home=/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275 >>> remote: 2012-05-25 11:11:55,231 [myid:] - INFO [main:Environment@98] >>> - Server >>> environment:user.dir=/var/lib/stickshift/80d2b6413ce14d3eb25c86e33f69c275/zks1/runtime/repo/zookeeper-3.4.3 >>> remote: 2012-05-25 11:11:55,241 [myid:] - INFO >>> [main:ZooKeeperServer@733] - tickTime set to 2000 >>> remote: 2012-05-25 11:11:55,242 [myid:] - INFO >>> [main:ZooKeeperServer@742] - minSessionTimeout set to -1 >>> remote: 2012-05-25 11:11:55,242 [myid:] - INFO >>> [main:ZooKeeperServer@751] - maxSessionTimeout set to -1 >>> remote: 2012-05-25 11:11:55,345 [myid:] - INFO >>> [main:NIOServerCnxnFactory@110] - binding to port /127.3.241.1:8080 >>> remote: 2012-05-25 11:11:55,443 [myid:] - INFO >>> [main:FileTxnSnapLog@238] - Snapshotting: 0x0 to >>> ./zk_data/version-2/snapshot.0 >>> >>> The client log: >>> $ bin/zkCli.sh -server zks1-davidosgi.rhcloud.com:80 >>> Connecting to zks1-davidosgi.rhcloud.com:80 >>> 2012-05-25 22:16:29,123 [myid:] - INFO [main:Environment@98] - Client >>> environment:zookeeper.version=3.4.3-1240972, built on 02/06/2012 10:48 >>> GMT >>> 2012-05-25 22:16:29,129 [myid:] - INFO [main:Environment@98] - Client >>> environment:host.name=192.168.1.2 >>> 2012-05-25 22:16:29,129 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.version=1.6.0_31 >>> 2012-05-25 22:16:29,130 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.vendor=Apple Inc. >>> 2012-05-25 22:16:29,130 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.home=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home >>> 2012-05-25 22:16:29,131 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.class.path=/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../build/classes:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../build/lib/*.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../lib/slf4j-log4j12-1.6.1.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../lib/slf4j-api-1.6.1.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../lib/netty-3.2.2.Final.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../lib/log4j-1.2.15.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../lib/jline-0.9.94.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../zookeeper-3.4.3.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../src/java/lib/*.jar:/Users/david/proj/zk-test/zookeeper-3.4.3/bin/../conf: >>> 2012-05-25 22:16:29,135 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.library.path=.:/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java >>> 2012-05-25 22:16:29,135 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.io.tmpdir=/var/folders/s9/8mc72j514lgb0mj11czx585m0000gq/T/ >>> 2012-05-25 22:16:29,136 [myid:] - INFO [main:Environment@98] - Client >>> environment:java.compiler=<NA> >>> 2012-05-25 22:16:29,136 [myid:] - INFO [main:Environment@98] - Client >>> environment:os.name=Mac OS X >>> 2012-05-25 22:16:29,136 [myid:] - INFO [main:Environment@98] - Client >>> environment:os.arch=x86_64 >>> 2012-05-25 22:16:29,137 [myid:] - INFO [main:Environment@98] - Client >>> environment:os.version=10.7.4 >>> 2012-05-25 22:16:29,137 [myid:] - INFO [main:Environment@98] - Client >>> environment:user.name=david >>> 2012-05-25 22:16:29,137 [myid:] - INFO [main:Environment@98] - Client >>> environment:user.home=/Users/david >>> 2012-05-25 22:16:29,138 [myid:] - INFO [main:Environment@98] - Client >>> environment:user.dir=/Users/david/proj/zk-test/zookeeper-3.4.3 >>> 2012-05-25 22:16:29,139 [myid:] - INFO [main:ZooKeeper@433] - >>> Initiating client connection, >>> connectString=zks1-davidosgi.rhcloud.com:80 sessionTimeout=30000 >>> watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@5210f6d3 >>> Welcome to ZooKeeper! >>> 2012-05-25 22:16:29,582 [myid:] - INFO >>> [main-SendThread():ClientCnxn$SendThread@933] - Opening socket >>> connection to server /23.22.86.141:80 >>> 2012-05-25 22:16:29,591 [myid:] - WARN >>> [main-SendThread(ec2-23-22-86-141.compute-1.amazonaws.com:80):ZooKeeperSaslClient@123] >>> - SecurityException: java.lang.SecurityException: Unable to locate a >>> login configuration occurred when trying to find JAAS configuration. >>> 2012-05-25 22:16:29,591 [myid:] - INFO >>> [main-SendThread(ec2-23-22-86-141.compute-1.amazonaws.com:80):ZooKeeperSaslClient@125] >>> - Client will not SASL-authenticate because the default JAAS >>> configuration section 'Client' could not be found. If you are not >>> using SASL, you may ignore this. On the other hand, if you expected >>> SASL to work, please fix your JAAS configuration. >>> JLine support is enabled >>> [zk: zks1-davidosgi.rhcloud.com:80(CONNECTING) 0] 2012-05-25 >>> 22:16:29,735 [myid:] - INFO >>> [main-SendThread(ec2-23-22-86-141.compute-1.amazonaws.com:80):ClientCnxn$SendThread@846] >>> - Socket connection established to >>> ec2-23-22-86-141.compute-1.amazonaws.com/23.22.86.141:80, initiating >>> session >>> >>> [zk: zks1-davidosgi.rhcloud.com:80(CONNECTING) 0] ls / >>> 2012-05-25 22:16:59,733 [myid:] - INFO >>> [main-SendThread(ec2-23-22-86-141.compute-1.amazonaws.com:80):ClientCnxn$SendThread@1051] >>> - Client session timed out, have not heard from server in 30000ms for >>> sessionid 0x0, closing socket connection and attempting reconnect >>> Exception in thread "main" >>> org.apache.zookeeper.KeeperException$ConnectionLossException: >>> KeeperErrorCode = ConnectionLoss for / >>> at >>> org.apache.zookeeper.KeeperException.create(KeeperException.java:99) >>> at >>> org.apache.zookeeper.KeeperException.create(KeeperException.java:51) >>> at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1448) >>> at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1476) >>> at >>> org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:717) >>> at >>> org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:593) >>> at >>> org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:365) >>> at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:323) >>> at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:282) >>> david@pop ~/proj/zk-test/zookeeper-3.4.3 $ bin/zkCli.sh -server >>> zks1-davidosgi.rhcloud.com:80
