IBM Support

Hung thread behavior with SocketWriteTimerThread

Troubleshooting


Problem

SystemOut.Log will report Hung ORB Threads with the following stack traces.

Symptom

[[4/16/13 6:18:08:057 EDT] 00000306 ThreadMonitor W WSVR0605W: Thread "ORB.thread.pool : 184" (0000361f) has been active for 706577 milliseconds and may be hung. There is/are 133 thread(s) in total in the server that may be hung.

at java.net.SocketOutputStream.socketWrite0(Native Method)

at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:103)

at java.net.SocketOutputStream.write(SocketOutputStream.java:147)

at com.ibm.rmi.util.buffer.SequentialByteBuffer.flushTo(SequentialByteBuffer.java:410)

at com.ibm.rmi.util.buffer.SequentialByteBuffer.flushTo(SequentialByteBuffer.java:439)

at com.ibm.rmi.iiop.IIOPOutputStream.writeTo(IIOPOutputStream.java:541)

at com.ibm.rmi.iiop.Connection.write(Connection.java:2225)

at com.ibm.rmi.iiop.Connection.send(Connection.java:2267)

at com.ibm.rmi.iiop.ClientRequestImpl.invoke(ClientRequestImpl.java:338)

at com.ibm.rmi.corba.ClientDelegate.invoke(ClientDelegate.java:424)





[4/16/13 6:18:08:059 EDT] 00000306 ThreadMonitor W WSVR0605W: Thread "ORB.thread.pool : 70" (0000282b) has been active for 665094 milliseconds and may be hung. There is/are 134 thread(s) in total in the server that may be hung.

at com.ibm.rmi.util.buffer.SequentialByteBuffer.flushTo(SequentialByteBuffer.java:427)

at com.ibm.rmi.iiop.IIOPOutputStream.writeTo(IIOPOutputStream.java:541)

at com.ibm.rmi.iiop.Connection.write(Connection.java:2225)

at com.ibm.rmi.iiop.Connection.send(Connection.java:2267)

at com.ibm.rmi.iiop.ClientRequestImpl.invoke(ClientRequestImpl.java:338)

at com.ibm.rmi.corba.ClientDelegate.invoke(ClientDelegate.java:424)

at com.ibm.rmi.corba.ClientDelegate.non_existent(ClientDelegate.java:1591)

at com.ibm.CORBA.iiop.ClientDelegate.non_existent(ClientDelegate.java:500)

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Object Request Broker (ORB)","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.0;8.5.5;8.0;7.0","Edition":"Base;Network Deployment","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21639223

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