On Wed, Feb 24, 2010 at 11:38, Julien Revert <[email protected]> wrote: > > Hi everyone, > > Could you tell me if it's normal or if it's a bug; in fact i'm not sure. > I'm using jbosscache in local mode but attributes "timeToLiveSeconds" and > "maxNodes" in default-local.xml are not taken into account. It's > default.xml which is use.
It depends of the cache actually. Some caches are using "default" and some others are using "default-local". Most of the caches are using default.xml as default configuration. See http://code.xwiki.org/xwiki/bin/view/Modules/CacheModule for more. This goal was to separate caches we could want to synchronize between several XWiki instances (default) and caches for which it's not useful (default-local). But this distinction is not useful anymore since clustering is not done using cache configuration anymore (as you already know it ;)). We should probably remove the default-local things and make all caches use default.xml as default configuration file. Now about maxNodes, if you are trying to set the document cache size specifically, the best is probably to set the xwiki.store.cache.capacity property in xwiki.cfg file. > > Here are my configurations files : > xwiki.properties : > [...] > cache.cacheHint=jbosscache > cache.localCacheHint=jbosscache/local > [...] > > default-local.xml : > <?xml version="1.0" encoding="UTF-8"?> > <server> > <mbean code="org.jboss.cache.jmx.CacheJmxWrapper" > name="jboss.cache:service=Cache"> > <!-- Specific eviction policy configurations. This is LRU --> > <attribute name="EvictionPolicyConfig"> > <config> > <attribute name="wakeUpIntervalSeconds">5</attribute> > <attribute > name="policyClass">org.jboss.cache.eviction.LRUPolicy</attribute> > > <!-- Cache wide default --> > <region name="/xwiki"> > <!-- NOT TAKEN INTO ACCOUNT, BUG ? --> > <attribute name="maxNodes">5002</attribute> > <attribute name="timeToLiveSeconds">21602</attribute> > </region> > </config> > </attribute> > </mbean> > </server> > > default.xml : > <?xml version="1.0" encoding="UTF-8"?> > <server> > <!-- > ==================================================================== --> > <!-- Defines JBoss Cache configuration > --> > <!-- > ==================================================================== --> > <!-- Note the value of the 'code' attribute has changed since JBC 1.x > --> > <mbean code="org.jboss.cache.jmx.CacheJmxWrapper" > name="jboss.cache:service=Cache"> > <!-- Specific eviction policy configurations. This is LRU --> > <attribute name="EvictionPolicyConfig"> > <config> > <attribute name="wakeUpIntervalSeconds">5</attribute> > <attribute > name="policyClass">org.jboss.cache.eviction.LRUPolicy</attribute> > > <!-- Cache wide default --> > <region name="/xwiki"> > <attribute name="maxNodes">5001</attribute> > <attribute name="timeToLiveSeconds">21601</attribute> > </region> > </config> > </attribute> > </mbean> > </server> > > In fact, the 'maxNodes' and 'timeToLiveSeconds' which are used are 5001 and > 21601. > > Is it normal ? > > I would like adding that I'm trying to optimise my cache configuration > because we have error "java.lang.OutOfMemoryError: Java heap space" one or > twice a week and we are suspecting a cache problem. > ( Tomcat parameters used are : -Xms1024m -Xmx1048m -XX:MaxPermSize=128m > [...] ) > We have many errors look like arround the OutofMemory : > 08:47:45,880 > [http://wiki-soa.airfrance.fr/xwiki/bin/view/XWiki/MyTestClass] ERROR > aseEvictionAlgorithm Eviction > of /xwiki/wikidict:BlogToolbar.WebPreferences failed > java.lang.NullPointerException > at org.apache.log4j.Category.log(Category.java:849) > at org.apache.commons.logging.impl.Log4JLogger.trace > (Log4JLogger.java:152) > at > org.jboss.cache.factories.ComponentRegistry.invocationsAllowed > (ComponentRegistry.java:816) > at > org.jboss.cache.invocation.CacheInvocationDelegate.cacheStatusCheck > (CacheInvocationDelegate.java:582) > at org.jboss.cache.invocation.CacheInvocationDelegate.evict > (CacheInvocationDelegate.java:355) > at org.jboss.cache.eviction.BaseEvictionPolicy.evict > (BaseEvictionPolicy.java:27) > at org.jboss.cache.eviction.BaseEvictionAlgorithm.evictCacheNode > (BaseEvictionAlgorithm.java:231) > at org.jboss.cache.eviction.LRUAlgorithm.evict > (LRUAlgorithm.java:92) > at org.jboss.cache.eviction.LRUAlgorithm.prune > (LRUAlgorithm.java:172) > at org.jboss.cache.eviction.BaseEvictionAlgorithm.process > (BaseEvictionAlgorithm.java:116) > at org.jboss.cache.eviction.EvictionTimerTask.handleRegion > (EvictionTimerTask.java:133) > at org.jboss.cache.eviction.EvictionTimerTask.processRegions > (EvictionTimerTask.java:118) > at org.jboss.cache.eviction.EvictionTimerTask.access$000 > (EvictionTimerTask.java:28) > at org.jboss.cache.eviction.EvictionTimerTask$1.run > (EvictionTimerTask.java:106) > at java.util.TimerThread.mainLoop(Timer.java:512) > at java.util.TimerThread.run(Timer.java:462) > > But in fact I don't know if this error is a cause or a consequence of this > OutOfMemoryError. > > Thanks, > > Julien > > > Accédez aux meilleurs tarifs Air France, gérez vos réservations et > enregistrez-vous en ligne sur http://www.airfrance.com > Find best Air France fares, manage your reservations and check in online at > http://www.airfrance.com Les données et renseignements contenus dans ce > message peuvent être de nature confidentielle et soumis au secret > professionnel et sont destinés à l'usage exclusif du destinataire dont les > coordonnées figurent ci-dessus. 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