This is my configuration file:

    tickTime=2000
    initLimit=20
    syncLimit=5
    dataDir=./store/data
    clientPort=2181

    server.1=A:3181:4181
    server.2=B:3181:4181
    server.3=C:3181:4181
    server.4=D:3181:4181
    server.5=E:3181:4181

After this, I started all of the servers. Then I started client in one of
those nodes. It shows connected but as soon as I enter any command it threw
exception and stopped.

    WatchedEvent state:SyncConnected type:None path:null
    [zk: 127.0.0.1:2181(CONNECTED) 0] ls /
    2012-11-08 22:35:01,418 [myid:] - INFO
[main-SendThread(localhost:2181):ClientCnxn$SendThread@1083] - Client
session timed out, have not heard from server in 20000ms for sessionid
0x13ae22116e50001, closing socket connection and attempting reconnect

    WATCHER::

    WatchedEvent state:Disconnected type:None path:null
    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:1463)
        at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1491)
        at
org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:725)
        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)
- Required ports are open (2181, 3181, 4181)
- myid is being placed and has correct id corresponding to IP address
- Java version: java version "1.7.0_09" Java(TM) SE Runtime Environment
(build 1.7.0_09-b05)
Any idea whats going on?

Thanks in advance.

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What version of ZooKeeper are you running? Running version 3.4.4 with Java
7 can cause the kind of issue you're experiencing. Try using Java 6 (from
Oracle, OpenJDK experiences the same issues as Java 7), or try running the
ZooKeeper 3.4.5 release candidate at
http://people.apache.org/~mahadev/zookeeper-3.4.5-candidate-1/ (or wait for
the official release).

Skye

On Thu, Nov 8, 2012 at 3:25 PM, tanzir <[EMAIL PROTECTED]>wrote:

> This is my configuration file:
>
>     tickTime=2000
>     initLimit=20
>     syncLimit=5
>     dataDir=./store/data
>     clientPort=2181
>
>     server.1=A:3181:4181
>     server.2=B:3181:4181
>     server.3=C:3181:4181
>     server.4=D:3181:4181
>     server.5=E:3181:4181
>
> After this, I started all of the servers. Then I started client in one of
> those nodes. It shows connected but as soon as I enter any command it threw
> exception and stopped.
>
>     WatchedEvent state:SyncConnected type:None path:null
>     [zk: 127.0.0.1:2181(CONNECTED) 0] ls /
>     2012-11-08 22:35:01,418 [myid:] - INFO
> [main-SendThread(localhost:2181):ClientCnxn$SendThread@1083] - Client
> session timed out, have not heard from server in 20000ms for sessionid
> 0x13ae22116e50001, closing socket connection and attempting reconnect
>
>     WATCHER::
>
>     WatchedEvent state:Disconnected type:None path:null
>     Exception in thread "main"
> org.apache.zookeeper.KeeperException$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:1463)
>         at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1491)
>         at
> org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:725)
>         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)
>
>
>
>
> - Required ports are open (2181, 3181, 4181)
> - myid is being placed and has correct id corresponding to IP address
> - Java version: java version "1.7.0_09" Java(TM) SE Runtime Environment
> (build 1.7.0_09-b05)
>
>
> Any idea whats going on?
>
> Thanks in advance.
>
>
>
> --
> View this message in context:
> http://zookeeper-user.578899.n2.nabble.com/Zookeeper-client-exception-when-executing-any-command-in-client-tp7578167.html
> Sent from the zookeeper-user mailing list archive at Nabble.com.
>

W dniu 09.11.2012 01:52, Skye Wanderman-Milne pisze:
> What version of ZooKeeper are you running? Running version 3.4.4 with Java
> 7 can cause the kind of issue you're experiencing. Try using Java 6 (from
> Oracle, OpenJDK experiences the same issues as Java 7), or try running the
> ZooKeeper 3.4.5 release candidate at
> http://people.apache.org/~mahadev/zookeeper-3.4.5-candidate-1/ (or wait for
> the official release).

Can you, please, elaborate on what difference between these different
JVMs causes ZooKeeper to fail on some of them? BTW, which JIRA issue is
linked to this problem?

Best regards,

--
Tadeusz Andrzej Kadłubowski
Dział Rozwoju Technologii
Wirtualna Polska S.A.

"WIRTUALNA POLSKA" Spolka Akcyjna z siedziba w Gdansku przy ul. Traugutta 115 C, wpisana do Krajowego Rejestru Sadowego - Rejestru Przedsiebiorcow prowadzonego przez Sad Rejonowy Gdansk - Polnoc w Gdansku pod numerem KRS 0000068548, o kapitale zakladowym 67.980.024,00 zlotych oplaconym w calosci oraz Numerze Identyfikacji Podatkowej 957-07-51-216.

I've also noticed that 3.4.4 fails every time I run it (against a 3.4.4)
cluster, but running the 3.4.3 client works every time.
On Thu, Nov 15, 2012 at 5:12 AM, Tadeusz Andrzej Kadłubowski <
[EMAIL PROTECTED]> wrote:

> W dniu 09.11.2012 01:52, Skye Wanderman-Milne pisze:
>
>  What version of ZooKeeper are you running? Running version 3.4.4 with Java
>> 7 can cause the kind of issue you're experiencing. Try using Java 6 (from
>> Oracle, OpenJDK experiences the same issues as Java 7), or try running the
>> ZooKeeper 3.4.5 release candidate at
>> http://people.apache.org/~**mahadev/zookeeper-3.4.5-**candidate-1/<http://people.apache.org/~mahadev/zookeeper-3.4.5-candidate-1/>(or wait for
>> the official release).
>>
>
> Can you, please, elaborate on what difference between these different
> JVMs causes ZooKeeper to fail on some of them? BTW, which JIRA issue is
> linked to this problem?
>
> Best regards,
>
> --
> Tadeusz Andrzej Kadłubowski
> Dział Rozwoju Technologii
> Wirtualna Polska S.A.
>
>
>
> "WIRTUALNA POLSKA" Spolka Akcyjna z siedziba w Gdansku przy ul. Traugutta
> 115 C, wpisana do Krajowego Rejestru Sadowego - Rejestru Przedsiebiorcow
> prowadzonego przez Sad Rejonowy Gdansk - Polnoc w Gdansku pod numerem KRS
> 0000068548, o kapitale zakladowym 67.980.024,00 zlotych oplaconym w calosci
> oraz Numerze Identyfikacji Podatkowej 957-07-51-216.
>

--
http://about.me/BrianTarbox

Thanks a lot Skye. You are right. I was using 3.4.4. I thought the issue I
was facing might be related to server configuration or zoo configuration,
didn't think about JVM version! After downgrading  my java version to 1.6
(Sun) it worked as expected. Thank you once again, appreciate it.

- Tanzir

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