My Oracle Support Banner

Statistics Agregator Causing ALSB Cluster Performance Degradation (Doc ID 973054.1)

Last updated on APRIL 14, 2021

Applies to:

Oracle Service Bus - Version 2.5 and later
Information 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)


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

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.