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From hideki tihiri <hideki.tih...@gmail.com>
Subject Re: java.lang.NullPointerException at at org.apache.axis2.clustering.tribes.TribesClusterManager.initializeSystem(TribesClusterManager.java:288)
Date Thu, 28 May 2009 08:00:30 GMT
Hi,

on as side note:

1) Where can I find more information regarding the parameters that can be
used in the  <contextManager
class="org.apache.axis2.clustering.context.DefaultContextManager"> element ?
Can I define a backup node for one Tomcat  (so not all Tomcats in the group
get all messages) ?
2) What is the relationship with :
http://wso2.org/library/articles/wso2-carbon-cluster-configuration-language
Can I also use this one ? Seems that there are a lot more options to define
?
Thx in advance.

H.
On Thu, May 28, 2009 at 9:38 AM, hideki tihiri <hideki.tihiri@gmail.com>wrote:

> Hi,
>
> we have added clustering to Axis2.
>
> All tests were successfull yesterday (tested on 1 machine with 2 Tomcat
> instances - Windows 2003 server - Tomcat 6.0.x ).
>
> When restarting the Tomcats this morning we got following error:
>
> SEVERE: Servlet /betrust_server threw load() exception
> java.lang.NullPointerException
>  at
> org.apache.axis2.clustering.tribes.TribesClusterManager.initializeSystem(TribesClusterManager.java:288)
>
> THe problem keeps coming back, even after removing the work/cataline
> directory (to 'clean-up' the Tomcat instances).
>
> Has any had this problem and more important, any one could solve the
> problem ?
>
> Note: On my laptop I experienced the same problem. The first time
> clustering is used is works, but after restarting (?) Tomcat this error
> shows up.
>
> !!!! ==> Even after complete removal of the context, clearing
> the Tomcat work directory and redeployment of the context the problem keeps
> coming back !!!!!
>
> We are completely blocked now.
>
> We added clustering in the axis2.xml as follows:
>
>  <cluster class="org.apache.axis2.clustering.tribes.TribesClusterManager">
>  <contextManager
> class="org.apache.axis2.clustering.context.DefaultContextManager">
>         <listener
> class="org.apache.axis2.clustering.context.DefaultContextManagerListener"/>
>         <replication>
>             <defaults>
>                 <exclude name="local_*"/>
>                 <exclude name="LOCAL_*"/>
>             </defaults>
>             <context class="org.apache.axis2.context.ConfigurationContext">
>                 <exclude name="*"/>
>                 <!--
>                 <exclude name="SequencePropertyBeanMap"/>
>                 <exclude name="NextMsgBeanMap"/>
>                 <exclude name="RetransmitterBeanMap"/>
>                 <exclude name="StorageMapBeanMap"/>
>                 <exclude name="CreateSequenceBeanMap"/>
>                 <exclude name="ConfigContextTimeoutInterval"/>
>                 <exclude name="ContainerManaged"/>
>                 -->
>             </context>
>             <context class="org.apache.axis2.context.ServiceGroupContext">
>                 <exclude name="*"/>
>                 <!--
>                 <exclude name="my.sandesha.*"/>
>                 -->
>             </context>
>             <context class="org.apache.axis2.context.ServiceContext">
>                 <exclude name="my.sandesha.*"/>
>             </context>
>         </replication>
>      </contextManager>
>    </cluster>
>
>
> H.
>

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