[jboss-jira] [JBoss JIRA] Updated: (JBCACHE-709) Out of memory problem

Out of memory problem --------------------- Key: JBCACHE-709 URL: http://jira.jboss.com/jira/browse/JBCACHE-709 Project: JBoss Cache Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 1.2.4SP2 Environment: Windows NT, Ecliplse IDE and Pentium 4 processor. Reporter: Sudhakar Pandey Assigned To: Ben Wang Priority: Critical Attachments: TestMemoryLeak.java, TreeCache.xml Problem: ~~~~~~~ While running the following testcase after entering 66666 records my system program is getting hang. Following is the description of program: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I am putting some String object in TreeCache, accessing it and then removing it from the cache. I am doing this in a infinite loop. Following is the eviction policy: ~~~~~~~~~~~~~~~~~~~~~~~ <attribute name="EvictionPolicyConfig"> <config> <attribute name="wakeUpIntervalSeconds">72000</attribute> <!-- Cache wide default --> <region name="/_default_"> <attribute name="maxNodes">500</attribute> <attribute name="timeToLiveSeconds">180</attribute> <!-- Maximum time an object is kept in cache regardless of idle time --> <attribute name="maxAgeSeconds">7200</attribute> </region> <!-- yodlee wide default --> <region name="/com/yodlee"> <attribute name="maxNodes">500</attribute> <attribute name="timeToLiveSeconds">180</attribute> <!-- Maximum time an object is kept in cache regardless of idle time --> <attribute name="maxAgeSeconds">7200</attribute> </region> </config> </attribute> *IMPORTENT*: If I reduce the 'wakeUpIntervalSeconds' then there is no leak. However, I can reduce this time coz it eats up lots of CPU. I have attached the Tree Cache Configuration xml file also. Program: ~~~~~~~ public void testTreeCache(){ TreeCache treeCache; try { treeCache = new TreeCache(); treeCache.setCacheMode(TreeCache.LOCAL); // configure TreeCache PropertyConfigurator config = new PropertyConfigurator(); config.configure(treeCache, "com/yodlee/core/system/services/cacheservice/TreeCache.xml"); treeCache.startService(); String identifier = "Test/MemoryLeak/"; String key = "key"; String value = "JBoss Cache is a product designed to cache frequently accessed Java objects in order to dramatically improve the performance of e-business applications. By eliminating unnecessary database access, JBoss Cache decreases network traffic and increases the scalability of applications."; for(int i=0;;i++) { System.out.println("Putting key=" + (key +i)); treeCache.put(identifier, key +i, value); System.out.println(treeCache.get(identifier, key + i)); System.out.println("Removing key=" + (key+i)); treeCache.remove(identifier, key + i); } //treeCache.stopService(); } catch (Exception e) { MessageController.log(JBossCacheServiceImpl.class.getName(), 1, ExceptionHelper.getExceptionStackTrace(e), MessageController.FATAL); throw new CoreException(ExceptionHelper.getExceptionStackTrace(e)); } }