---------------------------------------------------------------- BEFORE YOU POST, search the faq at <http://java.apache.org/faq/> WHEN YOU POST, include all relevant version numbers, log files, and configuration files. Don't make us guess your problem!!! ---------------------------------------------------------------- Dear All, every so often I find that a 'thread dump' gets written my errors.log file (see below). This cryptic message seems to detail the various threads running on my JVM and seems fairly self-explanatory. What I want to know is, why is it being written? Is this some sort of response to an internal error or does JServ automatically generate these every so often? Can I switch them off or should I be rewriting my code to avoid them. -- ERRORS.LOG BEGIN -- GNUJSP: Detected JSDK version 2.0 Full thread dump Classic VM (JDK-1.2.2-001, native threads): "Thread-6" (TID:0x18ed840, sys_thread_t:0x8fc450, state:CW, native ID:0xe2) prio=5 at java.lang.Object.wait(Native Method) at demon.dorking.util.ObjectPoolCleaner.run(ObjectPoolCleaner.java, Compiled Code) at java.lang.Thread.run(Thread.java:479) "Thread-2" (TID:0x18f0700, sys_thread_t:0x8e5970, state:CW, native ID:0xe6) prio=5 at java.lang.Thread.sleep(Native Method) at org.apache.jserv.JServServletManager.run(JServServletManager.java, Compiled Code) at java.lang.Thread.run(Thread.java:479) "Thread-1" (TID:0x18f2bb8, sys_thread_t:0x8e49e0, state:CW, native ID:0xd1) prio=5 at java.lang.Thread.sleep(Native Method) at org.apache.jserv.JServServletManager.run(JServServletManager.java, Compiled Code) at java.lang.Thread.run(Thread.java:479) "Thread-0" (TID:0x18f5f18, sys_thread_t:0x8ddd10, state:CW, native ID:0x99) prio=1 at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:424) at org.apache.java.util.SimpleQueue.waitObject(SimpleQueue.java, Compiled Code) at org.apache.java.io.LogWriter$Agent.run(LogWriter.java, Compiled Code) "SymcJIT-LazyCompilation-0" (TID:0x18ee350, sys_thread_t:0x8253e0, state:CW, native ID:0x4f) prio=1 at SymantecJITCompilationThread.DoCompileMethod(Native Method) at SymantecJITCompilationThread.run(JITcompilationthread.java, Compiled Code) "SymcJIT-LazyCompilation-PA" (TID:0x18ee5c8, sys_thread_t:0x825c00, state:CW, native ID:0x48) prio=10 at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:424) at SymantecJITCompilationThread.run(JITcompilationthread.java, Compiled Code) "Finalizer" (TID:0x18e9320, sys_thread_t:0x811f40, state:CW, native ID:0x65) prio=8 at java.lang.Object.wait(Native Method) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:112) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:174) "Reference Handler" (TID:0x18e93b0, sys_thread_t:0x8103f0, state:CW, native ID:0xb0) prio=10 at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:424) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:114) "Signal dispatcher" (TID:0x18e93e0, sys_thread_t:0x80b830, state:R, native ID:0x54) prio=5 "main" (TID:0x18e91e0, sys_thread_t:0x7c0b60, state:R, native ID:0x8a) prio=5 at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406) at java.net.ServerSocket.implAccept(ServerSocket.java:240) at org.apache.java.net.AuthenticatedServerSocket.accept(AuthenticatedServerSock et.java, Compiled Code) at org.apache.jserv.JServ.main(JServ.java, Compiled Code) Monitor Cache Dump: SymantecJITCompilationThread@18EE350/1945390: <unowned> Waiting to be notified: "SymcJIT-LazyCompilation-PA" (0x825c00) java.lang.ref.ReferenceQueue$Lock@18E9338/191ED60: <unowned> Waiting to be notified: "Finalizer" (0x811f40) java.lang.ref.Reference$Lock@18E93C0/191E890: <unowned> Waiting to be notified: "Reference Handler" (0x8103f0) demon.dorking.sql.ConnectionPool@18EDDD8/198F5F8: <unowned> Waiting to be notified: "Thread-6" (0x8fc450) java.net.PlainSocketImpl@18F5588/195F610: owner "main" (0x7c0b60) 1 entry org.apache.java.util.SimpleQueue@18F9BA0/196EC38: <unowned> Waiting to be notified: "Thread-0" (0x8ddd10) Registered Monitor Dump: SymcJIT Method Monitor: <unowned> SymcJIT Method Monitor: <unowned> SymcJIT Lazy Queue Lock: <unowned> Waiting to be notified: "SymcJIT-LazyCompilation-0" (0x8253e0) SymcJIT Method Monitor: <unowned> SymcJIT Method List Monitor: <unowned> SymcJIT Lock: <unowned> utf8 hash table: <unowned> JNI pinning lock: <unowned> JNI global reference lock: <unowned> BinClass lock: <unowned> Class linking lock: <unowned> System class loader lock: <unowned> Code rewrite lock: <unowned> Heap lock: <unowned> Monitor cache lock: owner "Signal dispatch -- ERRORS.LOG END -- Yours confused... -- Ricardo Gladwell, Web Developer Demon Internet, Westhumble House, Dorking Business Park, Dorking. RH4 1HJ Tel: +44 (0)1306 732 356 -- -------------------------------------------------------------- Please read the FAQ! <http://java.apache.org/faq/> To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives and Other: <http://java.apache.org/main/mail.html> Problems?: [EMAIL PROTECTED]
