etter idea, because I support students who are unable to register
for classes because of this. Thanks.
Ken
.
-Original Message-
From: Lintang JP [mailto:[EMAIL PROTECTED]
Sent: Friday, August 12, 2005 11:53 PM
To: Tomcat Users List
Subject: Re: Diagnosing Tomcat Hang
have U check your
have U check your Connector settings, maxAcceptConnection part ? this
settings describe maximum connection will be accepted by tomcat, if it's
reached, then tomcat will put the rest connection request in hold, waiting
for other connection untill they finished. By that time, the tomcat looks
"ha
Hi Kenneth,
you will have to check your DB connection code and for possible
bottlenecks. Does your DB accept enough connections? Any other clues in
tomcat log files (also standard output)?
--Radek W.
Kenneth Litwak wrote:
> Hi Radek,
>
> Below I'm pasting what is at the bottom. I don't see
"VM Periodic Task Thread" prio=1 tid=0x080b69a8 nid=0x7cf6 waiting on
condition
"Suspend Checker Thread" prio=1 tid=0x080b2a50 nid=0x7cf3 runnable
: msg -> view: LoadingData
: msg -> command: null
: msg -> external: null
: msg -> forwarding url : /loading_data.j
va:655)
> - locked <0x9096cbf0> (a
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
> at java.lang.Thread.run(Thread.java:534)
>
> "http-8081-Processor40" daemon prio=1 tid=0x0838be20 nid=0x7ed2 in
> Object.wait() [8cbae000..8cbaeccc]
>
util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:429)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool
.java:655)
- locked <0x9096c918> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.
List
Subject: Re: Diagnosing Tomcat Hang
Hi.
Did you try sending a JVM process a QUIT signal (kill -3)? That will
produce a thread dump on a standart output. Do that when your
application hangs. From the thread dump you can deduct which thread
causes a problem.
--Radek W.
Kenneth Litwak wrote:
>
Hi.
Did you try sending a JVM process a QUIT signal (kill -3)? That will
produce a thread dump on a standart output. Do that when your
application hangs. From the thread dump you can deduct which thread
causes a problem.
--Radek W.
Kenneth Litwak wrote:
> I have a Java web app running on tomca
i was recently recommended these 2 tools by the good people here
http://www.quest.com/jprobe/
http://jakarta.apache.org/jmeter/
but id like to hear if there are other tools and techniques people
recommend for debugging and monitoring.
thanks
martin
Kenneth Litwak wrote:
I have a Java we
I have a Java web app running on tomcat on Linux Red hat on an Intel
box with 2 GR of RAM. We're having trouble because the application
intermittently hangs. The threads never go anywhere near the max. The
CPU usage never goes above 2%. The memory does not get used up.
Nevertheless, the tomca
10 matches
Mail list logo
