HPROF output shows a debugging method being called
 Technote (troubleshooting)
 
Problem(Abstract)
In the hprof.log, you may see the following method:

com.ibm.disthub.impl.util.aio.NBIO.jniPoll(NBIO.java:Native method)
com.ibm.disthub.impl.util.aio.NBIO.threadMain(NBIO.java:666)
com.ibm.disthub.impl.client.DebugThread.run(DebugThread.java:66)
 
Cause
The method you are seeing is used by the Data Replication Service(DRS) and also by WebSphere Embedded Messaging Publish Subscribe (WEMPS). The DebugThread is the base class of all threads in Disthub. The purpose of this class is to poll all the sockets that have connections and then to spawn new threads to carry out work on any information that is received.
 
Resolving the problem
It does contain the functionality to turn on debug for these threads. However, by default this is switched off.
 
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers Runtimes for Java Technology Java SDK
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Data Replication Services
Operating system(s): Windows
Software version: 5.1.1.2
Software edition:
Reference #: 1190106
IBM Group: Software Group
Modified date: Nov 9, 2004