RE: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Robinson, Eric
> > ... and a link to TFM, if Eric didn't see [the other] Mark's response: > http://wiki.apache.org/tomcat/HowTo#How_do_I_obtain_a_thread_d > ump_of_my_running_webapp_.3F > > - -chris I did see that and I even read it before posting. It said kill -3 sends a SIGQUIT. I guess I jumped to the co

RE: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Robinson, Eric
> RTFM > > kill -3 doesn't kill the process it generates a thread dump to stdout. > > Mark Ha! It's probably been 30 years since the last time anyone told me to RTFM. Fair enough, I suppose I deserved it, although in my defense I did check the man page first. :-) Thanks! --Eric Disclai

Re: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Michael Gesundheit
Just do "sudo kill -3 " It will most likely work. If sudo is not enable - just google it. You will find instructions how to enable it. -Michael --- On Fri, 3/22/13, Mark Eggers wrote: > From: Mark Eggers > Subject: Re: Diagnosing Silently Frozen Tomcats > To: users@tomca

Re: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Mark, On 3/22/13 6:26 PM, Mark Thomas wrote: > On 22/03/2013 22:22, Robinson, Eric wrote: >> Dan said: >>> Take a full thread dump of the PID. Linux kill -3, if Windows >>> CTRL+BREAK if you have a console window open. >>> >> >> Mark said: >>> 2.

Re: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Mark Eggers
On 3/22/2013 3:22 PM, Robinson, Eric wrote: Dan said: Take a full thread dump of the PID. Linux kill -3, if Windows CTRL+BREAK if you have a console window open. Mark said: 2. Thread dumps So I tried kill -3 but it does nothing. The process ignores me like it owes me child support. I not

Re: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Mark Thomas
On 22/03/2013 22:22, Robinson, Eric wrote: > Dan said: >> Take a full thread dump of the PID. Linux kill -3, if >> Windows CTRL+BREAK if you have a console window open. >> > > Mark said: >> 2. Thread dumps >> > > So I tried kill -3 but it does nothing. The process ignores me like it owes > m

RE: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Robinson, Eric
Dan said: > Take a full thread dump of the PID. Linux kill -3, if > Windows CTRL+BREAK if you have a console window open. > Mark said: > 2. Thread dumps > So I tried kill -3 but it does nothing. The process ignores me like it owes me child support. I notice that it is in sleep state S1 if

RE: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Carrillo, Dan
Eric [mailto:eric.robin...@psmnv.com] Sent: Friday, March 22, 2013 1:37 PM To: users@tomcat.apache.org Subject: Diagnosing Silently Frozen Tomcats When tomcat freezes silently, what is the best way to look inside the frozen tomcat or java instance and see the cause? We have 1500+ tomcat instances, and

Re: Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Mark Eggers
On 3/22/2013 1:36 PM, Robinson, Eric wrote: When tomcat freezes silently, what is the best way to look inside the frozen tomcat or java instance and see the cause? We have 1500+ tomcat instances, and most of them run great most of the time. But a few times per week, an instance will become unresp

Diagnosing Silently Frozen Tomcats

2013-03-22 Thread Robinson, Eric
When tomcat freezes silently, what is the best way to look inside the frozen tomcat or java instance and see the cause? We have 1500+ tomcat instances, and most of them run great most of the time. But a few times per week, an instance will become unresponsive. There is usually nothing suspicious