Re: Lost messages in webapp.

This shows that the member does *not* discover anybody else in the 
cluster, I suggest you check whether multicast works first, as described 
in INSTALL.html (shipped with JGroups)

Gustavo Maciel Dias Vieira wrote:
> Em Qui, 2006-09-14 Ã s 21:06 +0200, Bela Ban escreveu:
>   
>> Might be a class loader issue; I suggest enabling logging for 
>> org.jgroups at the TRACE level to see what's going on
>>
>> Gustavo Maciel Dias Vieira wrote:
>>     
>>> Hi all,
>>>
>>> I'm experiencing a heck of a strange problem using JGroups inside a web
>>> application (actually it's a web service using Axis/Tomcat). All
>>> messages sent to the group are lost, but messages are correctly
>>> received.
>>>
>>> It is really weird. I've tested the same application, in the same
>>> machine outside of Axis/Tomcat (easy, as it is a web service) and it
>>> works perfectly. However, inside the application server all messages are
>>> lost, not even the web app receives the messages it has sent.
>>>       
>
> I've enabled more complete logs and couldn't note any problem, besides
> of course, the fact that messages are never received.
>
> Here is the log of part of the bootstrap for the application *outside*
> Tomcat/AXIS:
>
> -------------------------------------------------------
> GMS: address is 10.23.23.1:32857
> -------------------------------------------------------
> [DEBUG] UDP - created unicast receiver thread
> [TRACE] PingWaiter - waiting for initial members: time_to_wait=3000, got
> 0 rsps
> [TRACE] PingSender - sending GET_MBRS_REQ
> [TRACE] UDP - sending msg to null (src=10.23.23.1:32857), headers are
> {PING=[PING: type=GET_MBRS_REQ, arg=null], UDP=[channel_name=ETie]}
> [TRACE] UDP - received (mcast) 45 bytes from 10.23.23.1:32858
> [TRACE] UDP - message is [dst: 228.1.2.3:45566, src: 10.23.23.1:32857 (2
> headers), size = 0 bytes], headers are {UDP=[channel_name=ETie],
> PING=[PING: type=GET_MBRS_REQ, arg=null]}
> [TRACE] PingSender - sending GET_MBRS_REQ
>
> And here is what I see when the same application in run *inside*
> Tomcat/AXIS:
>
> -------------------------------------------------------
> GMS: address is 10.23.23.1:32855
> -------------------------------------------------------
> [TRACE] PingWaiter - waiting for initial members: time_to_wait=3000, got
> 0 rsps
> [TRACE] PingSender - sending GET_MBRS_REQ
> [TRACE] UDP - sending msg to null (src=10.23.23.1:32855), headers are
> {PING=[PING: type=GET_MBRS_REQ, arg=null], UDP=[channel_name=ETie]}
> [TRACE] PingSender - sending GET_MBRS_REQ
>
> I've observed similar behavior when actually sending messages.
>
> Anything else I should consider?
>
> Abraços,
> Gustavo
>
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys -- and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> javagroups-users mailing list
> javagroups-users@xxxxxxxxxxxxxxxxxxxxx
> https://lists.sourceforge.net/lists/listinfo/javagroups-users
>   

-- 
Bela Ban
Lead JGroups / Manager JBoss Clustering Group
JBoss - a division of Red Hat


-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV