sreenivas arumilli [https://community.jboss.org/people/arumilli] created the discussion "Re: Cpu 100% and GC is running" To view the discussion, visit: https://community.jboss.org/message/722414#722414 -------------------------------------------------------------- Thanks for your response.I gone on vacation and cam back yesterday.. I have taken the thread dumps before and after the thread increase and able to see the followin components are using the threads. "ajp-192.168.100.40-8009-199" - Thread t@629    java.lang.Thread.State: TIMED_WAITING on EDU.oswego.cs.dl.util.concurrent.QueuedSemaphore$WaitQueue$WaitNode@5fc784ce         at java.lang.Object.wait(Native Method)         at EDU.oswego.cs.dl.util.concurrent.QueuedSemaphore$WaitQueue$WaitNode.doTimedWait(QueuedSemaphore.java:123)         at EDU.oswego.cs.dl.util.concurrent.QueuedSemaphore.attempt(QueuedSemaphore.java:47)         at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:181)         at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:613)         at org.jboss.resource.connectionmanager.BaseConnectionManager2.getManagedConnection(BaseConnectionManager2.java:347)         at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:330)         at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:402)         at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:849)         at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:89)         at atg.service.jdbc.SwitchingDataSource.getConnection(SwitchingDataSource.java:761)         at atg.adapter.gsa.GSATransaction.getConnection(GSATransaction.java:725)         at atg.adapter.gsa.GSAItemDescriptor.getConnection(GSAItemDescriptor.java:2364)         at atg.adapter.gsa.GSAItemDescriptor.executeQuery(GSAItemDescriptor.java:7335) I searched in google but haven't found much information. Anyone has any idea on it. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/722414#722414] Start a new discussion in Performance Tuning at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]