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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Tomcat 8.0.12 - unable to eliminate logs stating "org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [variousURLs] to the cache because there was insufficient free space available after evicting expired cache entries -...
Date Tue, 09 Dec 2014 16:27:26 GMT
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Kevin,

On 12/9/14 11:01 AM, Kevin McKee wrote:
> Thanks Chris.  Yes - I want to fix whatever is causing that warning
> to appear, and thus stop it from appearing in my logs.  I’m not an
> expert on Tomcat config so please help me what settings I should
> remove or add in order to fix this issue.
> 
> Do I want to disable the cache to eliminate the warning/log, or
> what do you recommend?

I wouldn't usually recommend disabling caching, but I guess it depends
upon what is failing to be cached. Tomcat uses "Resources" to load
everything including classes (though I'm not sure if it bothers to
actually cache the .class file content, since the JVM loads and
compiles them and then the cache would be useless) and other
one-time-read kind of stuff. If you have thousands of tiny files or
something then you could be thrashing your cache and disabling it
would be better than leaving it in its current state. You could also
decide that you want caching (you might want to do some performance
tests to see what kind of difference it makes) and that you want to
/increase/ the cache size from the default.

> Is this what I want?
> 
> <Context cachingAllowed="false">

No. Please read the reference I sent: this is not configured on the
<Context> element in Tomcat 8.

- -chris
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