|
|
Sponsored Content
Operating Systems
Solaris
decipher pstack with problem lwp
Post 48528 by hosierdm on Tuesday 9th of March 2004 05:18:21 PM
03-09-2004
Sorry if I wasn't very clear...I was just trying not to be too verbose. JBoss is a J2EE application server. The pstack is from the JBoss server process. The database locks are coming from java code that we have written and which is running on the JBoss application server. The number of locked rows coincides with the number of CPU hogging lwps (feels like infinite loop to me). My assumption was that the offending lwp in the pstack represents something going on in the code that we have written. So I was hoping that anyone could give me insight into the pstack that I attached that could help me try to figure out where to look for problems in our code. The problem isn't reproducible and happens (seemingly) randomly...otherwise it would probably be easy to figure out without needing to dig into this stuff.
Thanks for the reply. If you can't help, no problem...nobody else has been able to help either.
Thanks for the reply. If you can't help, no problem...nobody else has been able to help either.
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I've got a really weird situation here.... the same IP address keeps popping up in porn spam that I have rec'd in 2 different email accts. It looks to me like it's coming from UC Davis, and I suspect someone there, so I am hoping you all can verify the same thing before I call the person on this... (0 Replies)
Discussion started by: christinef
0 Replies
2. Solaris
Hello everyone,
I have a 12-thread application running on Solaris 9.
When I use the pstack command after a typical core dump, it prints the stack output of all 12 threads/lwps. This is the standard procedure as it is described in the Solaris MAN pages.
Is there a way to filter out the... (1 Reply)
Discussion started by: gregb32
1 Replies
3. Red Hat
Can someone tell me the Linux equivalent for pstack and pfiles and ptree which are Solaris commands. (1 Reply)
Discussion started by: bdsffl
1 Replies
4. Shell Programming and Scripting
Hi Guys,
I am running solaris and I need help in deciphering the following commands:
dir_t1=`echo $0|nawk -F'/' '{print NF}'`
dir_t2=`expr $dir_t1- 1`
dir_t3=`echo $0|cut -d'/' -f1-$dir_t2`
export dir_t2
What will be the value for dir_t3?
Please help !!!!!!!!!!!!!!! (5 Replies)
Discussion started by: Phuti
5 Replies
5. Shell Programming and Scripting
Guys,
I am going through an existing code in production and found the following lines. I have used "sed" before but am unable to decipher the following statement. :(
echo ${F_NAME} | sed 's/\(.*\)............/\1/'
Any help is greatly appreciated.
Cheers,
Sid (6 Replies)
Discussion started by: sid1982
6 Replies
6. Ubuntu
Hi All
I would like to use the tool "pstack" to get a sample of the stack trace for a process.
As far as I understood It seems widely available in all Linux systems, but it is not in Ubuntu 10.10.
I tried using apt-get as per some posts in few forum, but it cannot be found in the APT... (9 Replies)
Discussion started by: manustone
9 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
I'm having a problem when I run the following code for example
perl -e 'use LWP::Simple; getprint "http://google.com"'
Can't locate LWP/Simple.pm in @INC (@INC contains: /System/Library/Perl/5.8.6/darwin-thread-multi-2level /System/Library/Perl/5.8.6... (7 Replies)
Discussion started by: pawannoel
7 Replies
8. Solaris
Hi ...
Can you please share how to analyse pstack file and various options for core dump analysis (3 Replies)
Discussion started by: anand87
3 Replies
9. Shell Programming and Scripting
ssh-add -t 30 >/dev/null 2>&1
LOGNAME=`whoami`
cp $HOME/.ssh/known_hosts $HOME/.ssh/known_hosts.org grep -v localhost
$HOME/.ssh/known_hosts.org > $HOME/.ssh/known_hosts
ssh -1 -f -l $LOGNAME -o "ForwardX11 yes" -o "StrictHostKeyChecking no"
-L 6003:1.1.1.1:2222 ext-proxy-2 sleep 5... (1 Reply)
Discussion started by: llcooljatt
1 Replies
10. SuSE
ssh-add -t 30 >/dev/null 2>&1
LOGNAME=`whoami`
cp $HOME/.ssh/known_hosts $HOME/.ssh/known_hosts.org
grep -v localhost $HOME/.ssh/known_hosts.org > $HOME/.ssh/known_hosts
ssh -1 -f -l $LOGNAME -o "ForwardX11 yes" -o "StrictHostKeyChecking no" -L 6003:195.244.210.107:2222 ext-proxy-2 sleep 5... (7 Replies)
Discussion started by: llcooljatt
7 Replies
LEARN ABOUT SUNOS
install-solaris
install-solaris(1M) install-solaris(1M) NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)