Statistics Agregator Causing ALSB Cluster Performance Degradation
(Doc ID 973054.1)
Last updated on DECEMBER 15, 2023
Applies to:
Oracle Service Bus - Version 2.5 and laterInformation in this document applies to any platform.
Symptoms
A performance degradation is seen if monitoring is enabled for a large number of services in Aqualogic Service Bus.
Around 20 -30% of the execution threads are awaiting on following call:
[STANDBY] ExecuteThread: '42' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=10 tid=0x0091f8f8 nid=0x148 waiting on condition [0x5617e000..0x5617faa8]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:681)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:809)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1124)
at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:423)
at com.bea.wli.monitoring.statistics.collection.StatisticsCollector.getStatistic(StatisticsCollector.java:252)
at com.bea.wli.monitoring.statistics.collection.StatisticsCollector.incrementCount(StatisticsCollector.java:604)
at com.bea.wli.sb.transports.Util.incrementMessageCount(Util.java:51)
at com.bea.wli.sb.transports.TransportManagerImpl.receiveMessage(TransportManagerImpl.java:190)
at com.bea.wli.sb.transports.http.HttpTransportServlet.service(HttpTransportServlet.java:294)
at weblogic.servlet.FutureResponseServlet.service(FutureResponseServlet.java:24)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:681)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:809)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1124)
at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:423)
at com.bea.wli.monitoring.statistics.collection.StatisticsCollector.getStatistic(StatisticsCollector.java:252)
at com.bea.wli.monitoring.statistics.collection.StatisticsCollector.incrementCount(StatisticsCollector.java:604)
at com.bea.wli.sb.transports.Util.incrementMessageCount(Util.java:51)
at com.bea.wli.sb.transports.TransportManagerImpl.receiveMessage(TransportManagerImpl.java:190)
at com.bea.wli.sb.transports.http.HttpTransportServlet.service(HttpTransportServlet.java:294)
at weblogic.servlet.FutureResponseServlet.service(FutureResponseServlet.java:24)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
Over a period of time this causes a degradation in server performance as well as slow response times. Response time for the ALSB services come beck to normal after bouncing the managed server.
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |