degr degr - 1 month ago 6
Java Question

How to remove the Ehcache WARN messages when using Hibernate

I have this Ehcache XML configuration:

<ehcache>
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="false"
diskSpoolBufferSizeMB="30"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"
/>
</ehcache>


And also, I have some packages with entities (around 150). If I deploy my application on tomcat server, there is a lot WARN messages in log:


2015-04-29 11:59:02,712 [RMI TCP Connection(3)-127.0.0.1] WARN
org.hibernate.cache.ehcache.AbstractEhcacheRegionFactory - HHH020003:
Could not find a specific ehcache configuration for cache named
[com.company.project.entity.package.MyEntity]; using defaults.


I can write configuration for each entity -

<cache name="com.company.project.entity.package.MyEntity"
maxEntriesLocalHeap="50"
eternal="false"
overflowToDisk="false"
timeToLiveSeconds="120">
<persistence strategy="localTempSwap"/>
</cache>


But in this way, my configuration file become too large (1600 rows). I think there is exist another way to set default config to each entity and kill warn messages, but I don't know how to do it. If anybody know, please help. Many thanks.

Answer

This is the Hibernate EHCache Cache Region code that logs the warning message:

private Ehcache getCache(String name) throws CacheException {
    try {
        Ehcache cache = manager.getEhcache( name );
        if ( cache == null ) {
            LOG.unableToFindEhCacheConfiguration( name );
            manager.addCache( name );
            cache = manager.getEhcache( name );
            LOG.debug( "started EHCache region: " + name );
        }
        HibernateEhcacheUtils.validateEhcache( cache );
        return cache;
    }
    catch (net.sf.ehcache.CacheException e) {
        throw new CacheException( e );
    }

}

As you can see, you have two options:

  1. You either declare the cache region in the ehcache.xml file.
  2. You set the 'org.hibernate.cache.ehcache.AbstractEhcacheRegionFactory' log level to ERROR:

    For Log4j2:

    <Logger name="org.hibernate.cache.ehcache.AbstractEhcacheRegionFactory" level="error">
        <AppenderRef ref="File"/>
    </Logger>
    
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