Hey Amgad, Umm... the way sendsignal works ( believe) is it sends a 'signal' to the JVM. The JVM then decides what to do. I know in the IBM JVM that we have properties to determine if we pass the signal to the OS (to get a OS dump) or if we handle it and dump our own threads
I am not an expert in Oracle/Bea or their JVM (is it Jrockit) but they may also have parameters.. ? For instance, I found this (http://edocs.bea.com/wls/docs81/cluster/trouble.html) and I am wondering if this is what you are looking for ? I presume you are using the BEA/Oracle application server right ? Christophe Elek - Senior Software Analyst IBM Rational Serviceability Architect IBM Toronto Lab 8200 Warden Avenue, Markham, Ontario, L6G 1C7 Phone Number: (905) 413-3467 Email: [EMAIL PROTECTED] Rational Internal Serviceability Portal "Don't just fix the mistakes - fix whatever permitted the mistake in the first place." Charles Fishman Web:http://www.ibm.com/software/rational/ From: "Amgad Mohamed" <[EMAIL PROTECTED]> To: "'Log4J Users List'" <log4j-user@logging.apache.org> Date: 08/06/2008 11:19 AM Subject: RE: Need to create a thread dump in OAS Hi Christophe, I'm using sendsignal.exe and am passing the PID of the OC4J instance under which am developing my application then I check the log and I can't find any dump just the oc4j is forced to shut down and restarted successfully. -------- 08/08/06 18:08:13 Start process -------- 08/08/06 18:08:16 Warning: Error reading transaction-log file (/D:/OraHome/j2ee/development/persistence/development_default_island_1/trans action.state) for recovery: premature end of file 08/08/06 18:08:16 Forced or abrupt (crash etc) server shutdown detected, starting recovery process... 08/08/06 18:08:16 Recovery completed, 0 connections committed and 0 rolled back... 08/08/06 18:08:18 Oracle Application Server Containers for J2EE 10g (10.1.2.0.2) initialized Any suggestions? Regards, Amgad Muhammad Software Engineer GoodNews4Me Tel: +2 02 2792 40 40 ext. 426 Fax: +2 02 2795 89 38 2 Abdel Kader Hamza St., Garden City Cairo, Egypt _____ From: Christophe Elek [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 06, 2008 5:32 PM To: Log4J Users List Cc: log4j-user@logging.apache.org Subject: Re: Need to create a thread dump in OAS Hey Amgad, I usually create a dummy exception and printStackTrace so it lists my thread You want a 'full jvm dump' ? If so, I usually sendSignal.exe to the PID or I use the IBM JVM and I programmaticlaly call the dump method Does it help ? Christophe Elek - Senior Software Analyst IBM Rational Serviceability Architect IBM Toronto Lab 8200 Warden Avenue, Markham, Ontario, L6G 1C7 Phone Number: (905) 413-3467 Email: [EMAIL PROTECTED] < http://w3.rchland.ibm.com/projects/process/swg/rational/serviceability/serv iceability.shtml> Rational Internal Serviceability Portal "Don't just fix the mistakes - fix whatever permitted the mistake in the first place." Charles Fishman _____ Web:http://www.ibm.com/software/rational/ _____ Inactive hide details for "Amgad Mohamed" ---08/06/2008 10:27:10 AM---Hi,"Amgad Mohamed" ---08/06/2008 10:27:10 AM---Hi, From: "Amgad Mohamed" <[EMAIL PROTECTED]> To: <log4j-user@logging.apache.org> Date: 08/06/2008 10:27 AM Subject: Need to create a thread dump in OAS _____ Hi, Does anybody know how to get a thread dump for the JVM. I'm developing my application under oracle application server and java 1.4 and I need a thread dump to trace logging problem. Regards, Amgad Muhammad Software Engineer GoodNews4Me Tel: +2 02 2792 40 40 ext. 426 Fax: +2 02 2795 89 38 2 Abdel Kader Hamza St., Garden City Cairo, Egypt
