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
