Re: Tomcat thread dump analysis

2013-05-09 Thread Charles Richard
On Wed, May 8, 2013 at 6:16 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Charles, On 5/8/13 1:57 PM, Charles Richard wrote: I appreciate the friendly feedback! How do I show a lock? I don't see any threads that have a

RE: Tomcat thread dump analysis

2013-05-09 Thread Jeffrey Janner
-Original Message- From: Charles Richard [mailto:charle...@thelearningbar.com] Sent: Thursday, May 09, 2013 7:03 AM To: Tomcat Users List Subject: Re: Tomcat thread dump analysis On Wed, May 8, 2013 at 6:16 PM, Christopher Schultz ch...@christopherschultz.net wrote

Re: Tomcat thread dump analysis

2013-05-08 Thread Charles Richard
Oh and sorry, we are using Tomcat 6.0.30 . Cheers! On Wed, May 8, 2013 at 9:20 AM, Charles Richard charle...@thelearningbar.com wrote: Hi, We have a weird issue on our site which some random trigger event will backup all c3p0 connections until it hits the max pool size. I have scripts

Re: Tomcat thread dump analysis

2013-05-08 Thread Daniel Mikusa
On May 8, 2013, at 8:20 AM, Charles Richard wrote: Hi, We have a weird issue on our site which some random trigger event will backup all c3p0 connections until it hits the max pool size. I have scripts that will do a softReset on the c3p0 connection pool when they hit their max so help

Re: Tomcat thread dump analysis

2013-05-08 Thread Charles Richard
We are using Terracotta which is a bit of a black box to me (setup I've inherited). Terracotta helps us with the Tomcat sessions being transportable across front end servers. Cheers! Charles On Wed, May 8, 2013 at 9:27 AM, Daniel Mikusa dmik...@gopivotal.com wrote: On May 8, 2013, at 8:20

Re: Tomcat thread dump analysis

2013-05-08 Thread Charles Richard
Just saw this which I believe describes exactly what is happening: http://forums.terracotta.org/forums/posts/list/6470.page We are using Spring as well. Trying to understand the solution: Charles On Wed, May 8, 2013 at 9:31 AM, Charles Richard charle...@thelearningbar.com wrote: We are

Re: Tomcat thread dump analysis

2013-05-08 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Charles, On 5/8/13 8:31 AM, Charles Richard wrote: On Wed, May 8, 2013 at 9:27 AM, Daniel Mikusa dmik...@gopivotal.com wrote: On May 8, 2013, at 8:20 AM, Charles Richard wrote: Hi, We have a weird issue on our site which some random

Re: Tomcat thread dump analysis

2013-05-08 Thread Daniel Mikusa
On May 8, 2013, at 8:39 AM, Charles Richard wrote: Just saw this which I believe describes exactly what is happening: http://forums.terracotta.org/forums/posts/list/6470.page We are using Spring as well. Trying to understand the solution: If this is the problem that you're experiencing

Re: Tomcat thread dump analysis

2013-05-08 Thread Charles Richard
Chris, Top-posting is a post after another one I'm assuming? And sorry if it wasn't related to Tomcat, I was just excited to finally making a bit of headway on this issue. Here is a full thread dump, sorry in advance if this doesn't follow the etiquette on posting thread dumps: TP-Processor396

RE: Tomcat thread dump analysis

2013-05-08 Thread Caldarale, Charles R
From: Charles Richard [mailto:charle...@thelearningbar.com] Subject: Re: Tomcat thread dump analysis Top-posting is a post after another one I'm assuming? No, it's doing what you keep on doing - posting the response before the query it applies to (you could have looked it up). It's

Re: Tomcat thread dump analysis

2013-05-08 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Chuck, On 5/8/13 11:25 AM, Caldarale, Charles R wrote: From: Charles Richard [mailto:charle...@thelearningbar.com] Subject: Re: Tomcat thread dump analysis Here is a full thread dump Which again shows no Tomcat involvement in the locking

Re: Tomcat thread dump analysis

2013-05-08 Thread Charles Richard
On Wed, May 8, 2013 at 2:33 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Chuck, On 5/8/13 11:25 AM, Caldarale, Charles R wrote: From: Charles Richard [mailto:charle...@thelearningbar.com] Subject: Re: Tomcat thread dump

Re: Tomcat thread dump analysis

2013-05-08 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Charles, On 5/8/13 1:57 PM, Charles Richard wrote: I appreciate the friendly feedback! How do I show a lock? I don't see any threads that have a BLOCKED status. I do get this when I do a grep: [root@web01 stacks]# grep locked

RE: Tomcat thread dump analysis

2013-05-08 Thread Caldarale, Charles R
From: Christopher Schultz [mailto:ch...@christopherschultz.net] Subject: Re: Tomcat thread dump analysis It would appear that logic in your application threads has either created a deadlock, or failed to unlock something before returning, That's a tall order unless native code