the number of threads is needed so the server can respond to multiple 
requests at the same time.

the system can only answer one socket per thread a a time.

-Jason Pyeron

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On Thu, 19 Dec 2002, Denise Mangano wrote:

Hi all :)

In response, I was running ps -ef to view what was running.  I haven't had a
chance to read the man on ps, but I did quickly try pstree -aup as you
suggested.  It looks like (if I am reading the tree right) there is only one
java process, with a number of threads branching off.  The same for the
httpd process.

Just out of curiousity, why would so many threads be spawned just after
starting the services before doing anything?

Thanks :)
Denise

-----Original Message-----
From: jon wingfield
To: Tomcat Users List
Sent: 12/19/2002 1:47 PM
Subject: RE: "Naive question" thread

i use pstree -aup.
Very useful with multiple java apps running on one server :)

-----Original Message-----
From: Milt Epstein [mailto:[EMAIL PROTECTED]]
Sent: 18 December 2002 20:15
To: Tomcat Users List
Subject: "Naive question" thread



Saw a post in the "naive question" thread earlier today that I wanted
to respond to, but my quick "delete" finger got to it before I got
around to it.  This was a thread in which John Turner, Denise Mangano,
and some others had been participating.

Anyway, Denise posted the output of ps that had a whole bunch of java
processes listed.  I'd be concerned about the number of such
processes, because normally there shouldn't be so many -- in fact,
most typically (i.e. one tomcat instance), there should be just one.
Now, Denise said she's using linux, and it's my understanding that ps
under linux will list threads, not just processes.  So it's possible
all those java listings were all the threads running in one java
process.  And I think there's an option to ps to cause it list actual
processes, not threads.  So you might try that and see what the output
looks like.

Milt Epstein
Research Programmer
Integration and Software Engineering (ISE)
Campus Information Technologies and Educational Services (CITES)
University of Illinois at Urbana-Champaign (UIUC)
[EMAIL PROTECTED]


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