Re: [Javagroups-development] jgroups threads and exceptions

[Bela B. <be...@ya...>]

Ok, done. All threads now belong to that global thread group. This is 
flat, except for the ConnectionTable threads which belong to a thread 
group which is
a child of the default TG

Bruce Schuchardt wrote:
> Since there can be a lot of threads in a JGroups stack, it might be 
> useful to put them in one or more thread groups to better control 
> them.  One thing that I often do with this is implement 
> uncaughtException in the thread group so I can see why a thread died.
>  
> For instance, in Util there could be a static threadgroup:
>  
>     /**
>      * ThreadGroup to which JGroups threads belong
>      */
>     private static ThreadGroup GROUP = new
>       ThreadGroup("JGroups Threads") {
>         public void uncaughtException(Thread t, Throwable e) {
>           StringWriter sw = new StringWriter();
>           sw.write("uncaught exception in thread ");
>           sw.write(t.getName());
>           LogFactory.getLog(JChannel.class).error("ThreadGroup: " + 
> sw.toString(), e);
>         }
>       };
>     public static ThreadGroup getThreadGroup() {
>         return GROUP;
>     }
>  
> and then, in Protocol and other places, use the group in creating threads
>  
>     public UpHandler(...) {
>         super(Util.getThreadGroup(), "tempname");
>         this.mq=mq;
>         etc.
>  
>  

-- 
Bela Ban
Lead JGroups / JBossCache
callto://belaban