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Posted to user@zookeeper.apache.org by Jonathan Simms <sl...@gmail.com> on 2012/01/26 23:00:50 UTC

Causing ZSESSIONEXPIRED

Hello all,

I'm trying to debug how my app handles an expired session, and i'm
having trouble understanding how to cause this error to occur. I'd
like to test my app "in the wild" doing the right thing in this case
(as it seems to happen every 24 hrs or so in my cluster for whatever
reason). Can someone explain to me how to cause the conditions
necessary?

Thanks,
Jonathan

Re: Causing ZSESSIONEXPIRED

Posted by Jordan Zimmerman <jz...@netflix.com>.

The Curator Test module has a class that does this:

https://github.com/Netflix/curator/blob/master/curator-test/src/main/java/c
om/netflix/curator/test/KillSession.java


On 1/26/12 2:38 PM, "Benjamin Reed" <br...@apache.org> wrote:

>one easy way is to terminate the session using JMX.
>
>ben
>
>On Thu, Jan 26, 2012 at 2:00 PM, Jonathan Simms <sl...@gmail.com> wrote:
>> Hello all,
>>
>> I'm trying to debug how my app handles an expired session, and i'm
>> having trouble understanding how to cause this error to occur. I'd
>> like to test my app "in the wild" doing the right thing in this case
>> (as it seems to happen every 24 hrs or so in my cluster for whatever
>> reason). Can someone explain to me how to cause the conditions
>> necessary?
>>
>> Thanks,
>> Jonathan
>

Re: Causing ZSESSIONEXPIRED

Posted by Benjamin Reed <br...@apache.org>.

one easy way is to terminate the session using JMX.

ben

On Thu, Jan 26, 2012 at 2:00 PM, Jonathan Simms <sl...@gmail.com> wrote:
> Hello all,
>
> I'm trying to debug how my app handles an expired session, and i'm
> having trouble understanding how to cause this error to occur. I'd
> like to test my app "in the wild" doing the right thing in this case
> (as it seems to happen every 24 hrs or so in my cluster for whatever
> reason). Can someone explain to me how to cause the conditions
> necessary?
>
> Thanks,
> Jonathan

Re: Causing ZSESSIONEXPIRED

Posted by Jonathan Simms <sl...@gmail.com>.

Thanks very much!

I'll have a go and figure out which one of these is easiest :)

On Thu, Jan 26, 2012 at 5:52 PM, Kapil Thangavleu <ka...@gmail.com> wrote:
> Excerpts from Jonathan Simms's message of Thu Jan 26 17:00:50 -0500 2012:
>> Hello all,
>>
>> I'm trying to debug how my app handles an expired session, and i'm
>> having trouble understanding how to cause this error to occur. I'd
>> like to test my app "in the wild" doing the right thing in this case
>> (as it seems to happen every 24 hrs or so in my cluster for whatever
>> reason). Can someone explain to me how to cause the conditions
>> necessary?
>>
>> Thanks,
>> Jonathan
>
>
> http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A4
>
> start another client with the same id and close the client.
>
> hth,
>
> -kapil

Re: Causing ZSESSIONEXPIRED

Posted by Kapil Thangavleu <ka...@gmail.com>.

Excerpts from Jonathan Simms's message of Thu Jan 26 17:00:50 -0500 2012:
> Hello all,
> 
> I'm trying to debug how my app handles an expired session, and i'm
> having trouble understanding how to cause this error to occur. I'd
> like to test my app "in the wild" doing the right thing in this case
> (as it seems to happen every 24 hrs or so in my cluster for whatever
> reason). Can someone explain to me how to cause the conditions
> necessary?
> 
> Thanks,
> Jonathan


http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A4

start another client with the same id and close the client.

hth,

-kapil