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Date: Tue, 15 Feb 2005 10:58:49 +0100
From: Sylvain Wallez <sylvain@apache.org>
Organization: Anyware Technologies
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To: dev@cocoon.apache.org
Subject: Re: cocoon-reload bug
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Stefano Mazzocchi wrote:

> latest checkout from 2.2, turn "allow-reload" true in web.xml and when 
> I hit a page with 'cocoon-reload=true' I get an IllegalStateException:
>
>   The cocoon-ehcache-4 Cache is not alive.
>
> which goes away as soon as I reload it.
>
> I can't be the only one hitting this.... how do you guys develop on 
> cocoon without reloading?


I hit this also a few weeks ago and invistaged a bit: the problem comes 
from EH's CacheManager which is a singleton that holds all caches (only 
one for Cocoon). When Cocoon is reloaded, CacheManager.shutdown() [1] is 
called which invalidates the cache instance. I suspect a race condition 
where the cache is still used when shutdown() has already been called.

I hadn't time to investigate further though.

Sylvain

[1] 
http://cvs.sourceforge.net/viewcvs.py/ehcache/ehcache/src/java/net/sf/ehcache/CacheManager.java?rev=1.21&view=auto

-- 
Sylvain Wallez                                  Anyware Technologies
http://www.apache.org/~sylvain           http://www.anyware-tech.com
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