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From Josh Elser <josh.el...@gmail.com>
Subject Re: Repeating connections with SASL
Date Mon, 17 Apr 2017 21:10:06 GMT
I'm kind of surprised as to how you're getting the NoClassDefFoundError.

I don't think that's at all related to disabling sasl client auth (as 
Dave suggested).

Dave Marion wrote:
> Add the following JVM argument to the server processes:
>
>
> -Dzookeeper.sasl.client=false
>
>> On April 17, 2017 at 4:01 PM "Brown, Scott M [US] (MS)"
>> <Scott.Brown8@ngc.com> wrote:
>>
>> We are getting this ~ every second in logs.. Apps appear up and
>> working, and we’d rather have INFO and WARN on for the time being, but
>> is there any way to disable this, or resolve?
>>
>> 2017-04-17 13:47:49,490
>> [paxweb-extender-2-thread-1-SendThread(*FQDN*:2181)] INFO
>> org.apache.zookeeper.ClientCnxn :: Opening socket connection to server
>> *FQDN*/*HOST IP ADDR*:2181. Will not attempt to authenticate using
>> SASL (unknown error)
>>
>> 2017-04-17 13:47:49,490
>> [paxweb-extender-2-thread-1-SendThread(*FQDN*:2181)] INFO
>> org.apache.zookeeper.ClientCnxn :: Socket connection established to
>> *FQDN*/*HOST IP ADDR*:2181, initiating session
>>
>> 2017-04-17 13:47:49,491
>> [paxweb-extender-2-thread-1-SendThread(*FQDN*:2181)] INFO
>> org.apache.zookeeper.ClientCnxn :: Session establishment complete on
>> server *FQDN*/*HOST IP ADDR*:2181, sessionid = 0x15b7ba86254004a,
>> negotiated timeout = 6000
>>
>> 2017-04-17 13:47:49,491 [paxweb-extender-2-thread-1-EventThread] INFO
>> org.I0Itec.zkclient.ZkClient :: zookeeper state changed (SyncConnected)
>>
>> 2017-04-17 13:47:49,492
>> [paxweb-extender-2-thread-1-SendThread(*FQDN*:2181)] WARN
>> org.apache.zookeeper.ClientCnxn :: Session 0x15b7ba86254004a for
>> server *FQDN*/*HOST IP ADDR*:2181, unexpected error, closing socket
>> connection and attempting reconnect
>>
>> java.lang.NoClassDefFoundError: org/apache/zookeeper/proto/WatcherEvent
>>
>> at
>> org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.java:744)
>>
>> at
>> org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:94)
>>
>> at
>> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:366)
>>
>> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
>>
>> 2017-04-17 13:47:49,593 [paxweb-extender-2-thread-1-EventThread] INFO
>> org.I0Itec.zkclient.ZkClient :: zookeeper state changed (Disconnected)
>>

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