Re: servlets under tomcat5 consume huge CPU usage
On 19/01/2011 08:29, Petr Hracek wrote: Dear tomcat users, I would like to ask you on the some thing regarding servlets running under tomcat 5 linux OS. How could I detect if servlet is running or not? Output of command ps -ef | grep java does not help me enought. I could not catch what java process is used by servlets Are there any special setting in tomcat5 which could show me more information? Use a thread dump. You can match thread IDs with ps output if you need to. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: servlets under tomcat5 consume huge CPU usage
Dear users, I do not understand correctly. I am linux administrator but the command like 'thread dump' is not existing. Do you have any example? Thank you in advance Petr 2011/1/19 Mark Thomas ma...@apache.org: On 19/01/2011 08:29, Petr Hracek wrote: Dear tomcat users, I would like to ask you on the some thing regarding servlets running under tomcat 5 linux OS. How could I detect if servlet is running or not? Output of command ps -ef | grep java does not help me enought. I could not catch what java process is used by servlets Are there any special setting in tomcat5 which could show me more information? Use a thread dump. You can match thread IDs with ps output if you need to. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Best Regards / S pozdravem Petr Hracek - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: servlets under tomcat5 consume huge CPU usage
Su to the user running tomcat. Run 'jps'. Find the pid of the process running 'Bootstrap'. Run 'jstack pid'. This gives you the thread dump. The id's of the threads (in hex) correspond to the pid's (in decimal) of the threads in ps -H or top with threads on. You can also find the pid with ps like you are likely used to. Ronald. Op woensdag, 19 januari 2011 11:05 schreef Petr Hracek phrac...@gmail.com: Dear users, I do not understand correctly. I am linux administrator but the command like 'thread dump' is not existing. Do you have any example? Thank you in advance Petr 2011/1/19 Mark Thomas ma...@apache.org: On 19/01/2011 08:29, Petr Hracek wrote: Dear tomcat users, I would like to ask you on the some thing regarding servlets running under tomcat 5 linux OS. How could I detect if servlet is running or not? Output of command ps -ef | grep java does not help me enought. I could not catch what java process is used by servlets Are there any special setting in tomcat5 which could show me more information? Use a thread dump. You can match thread IDs with ps output if you need to. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Best Regards / S pozdravem Petr Hracek - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: servlets under tomcat5 consume huge CPU usage
Super thank you. The programs like 'jps' and 'jstack' are directorly in tomcat5 distribution or it has to be compiled on the system? 2011/1/19 Ronald Klop ronald-mailingl...@base.nl: Su to the user running tomcat. Run 'jps'. Find the pid of the process running 'Bootstrap'. Run 'jstack pid'. This gives you the thread dump. The id's of the threads (in hex) correspond to the pid's (in decimal) of the threads in ps -H or top with threads on. You can also find the pid with ps like you are likely used to. Ronald. Op woensdag, 19 januari 2011 11:05 schreef Petr Hracek phrac...@gmail.com: Dear users, I do not understand correctly. I am linux administrator but the command like 'thread dump' is not existing. Do you have any example? Thank you in advance Petr 2011/1/19 Mark Thomas ma...@apache.org: On 19/01/2011 08:29, Petr Hracek wrote: Dear tomcat users, I would like to ask you on the some thing regarding servlets running under tomcat 5 linux OS. How could I detect if servlet is running or not? Output of command ps -ef | grep java does not help me enought. I could not catch what java process is used by servlets Are there any special setting in tomcat5 which could show me more information? Use a thread dump. You can match thread IDs with ps output if you need to. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Best Regards / S pozdravem Petr Hracek - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Best Regards / S pozdravem Petr Hracek - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: servlets under tomcat5 consume huge CPU usage
Petr Hracek schrieb am 19.01.2011 um 12:37 (+0100): The programs like 'jps' and 'jstack' are directorly in tomcat5 distribution or it has to be compiled on the system? They come with the JDK and are located in the JDK's bin/ directory. C:\Programme\Java\jdk1.6.0_23\bin -- Michael Ludwig - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: servlets under tomcat5 consume huge CPU usage
2011/1/19 Michael Ludwig mil...@gmx.de: Petr Hracek schrieb am 19.01.2011 um 12:37 (+0100): The programs like 'jps' and 'jstack' are directorly in tomcat5 distribution or it has to be compiled on the system? They come with the JDK and are located in the JDK's bin/ directory. C:\Programme\Java\jdk1.6.0_23\bin More details are here: http://wiki.apache.org/tomcat/HowTo#How_do_I_obtain_a_thread_dump_of_my_running_webapp_.3F Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
