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Date: Thu, 15 May 2008 15:39:56 -0700 (PDT)
From: Aaron Smuts <asmuts@yahoo.com>
Subject: Re: Re-configure Remote cache Aux
To: JCS Users List <jcs-users@jakarta.apache.org>
In-Reply-To: 
 <44DC92EAB59D6349BE59680A21B84816017B62C4@TAIS-ML-P01.na.toshiba-dpg.local>
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Message-ID: <697868.98145.qm@web38706.mail.mud.yahoo.com>

"Hot" configuration changes are not supported.  You
can change the default region attributes, but once
configured, you cannot reliably change any auxiliary
settings.  A restart is currently required.  

I'm working on a way to make it possible to change
auxiliary configurations on the fly.  I have setups
that use a dozen remote server boxes, partitioning the
data between half a dozen clusters.  I too would like
to make it possible to change an ip address or port on
the fly.

Aaron


--- "Mohammed, Yaseen "
<Yaseen.Mohammed@tais.toshiba.com> wrote:

> Hi,
> 
>  
> 
> I am using JCS with a RemoteCache auxiliary and
> failover servers. I am
> on jcs1.3 and jdk 1.4
> 
> I am trying to reconfigure CompositeCacheManager
> without restarting the
> server.  
> 
> For instance, changing the port number for the
> failover server without
> needing an application restart.
> 
>  
> 
> Here is the code snippet
> 
>         cacheMgr =
> CompositeCacheManager.getInstance();
> 
>         cacheMgr.release();                
> 
>         cacheMgr.shutDown();
> 
>         try{
> 
>             Thread.sleep(10000);
> 
>         } catch (InterruptedException e) { }
> 
>         cacheMgr =
> CompositeCacheManager.getUnconfiguredInstance();
> 
>         cacheMgr.configure("/cache.ccf");
> 
>  
> 
> I observed that "shutdown" call flags the listeners
> on remote cache
> server as "not working". [Any "put"s, "remove"s are
> not queued up for
> these listeners, once these are marked as "not
> working"]
> 
> However, after reconfiguring the cache manager, the
> old listener id is
> re-assigned to the cache regions at the client.
> 
> From this point onwards any "remove"s on the remote
> cache server are not
> propagated to the client.
> 
>  
> 
> After reconfiguring cache manager, I would expect a
> new listener Id to
> be assigned and the client to be treated as a new
> client to the remote
> cache server.
> 
> After going through all the mail-archives in this
> group, I found a
> reference that suggests that shutdown does not
> release auxiliaries like
> remote and lateral caches.
> 
> If yes, was this issue fixed?
> 
>  
> 
> Thanks in advance,
> 
> YM
> 
> 
> 
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