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From "Emerson Cargnin - MSA" <emers...@sicredi.com.br>
Subject condition in ant task
Date Thu, 16 May 2002 13:08:36 GMT
How do I set an ant task to reload a context (i've done that already)
conditionally , i want to reload just if a property is set, I set the
property using condition and http (to make sure tomcat is on).

Emerson


----- Original Message -----
From: "peter lin" <peter.lin@labs.gte.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Thursday, May 16, 2002 10:04 AM
Subject: Re: Conncurency issue with tomcat???


>
> Are you invalidating the session once each thread is done with it's 5
> requests?  Say for example the 5th request is a logout page, which
> invalidates the session. If that happens, theoritically the session id
> could appear again.  The base class responsible for generating the
> random session id is org.apache.catalina.session.ManagerBase.
>
>
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/catalina/docs/api/index.html
>
> I would post a message to tomcat-dev mailing list. My knowledge of the
> implementation is limited, so asking on tomcat-dev will get you the
> exact answer a bit faster.
>
> peter
>
>
> "Ghorpade, Rajendra" wrote:
> >
> > Peter,
> >
> > The server is not restarted. I checked that.
> > And in my testing application after the first response i get the cookie
and
> > resend it in the
> > subsequent requests for the same user.
> > So the session is managed properly on the client side.
> >
> > But this happens only for some of the requests.(roughly 2%)
> > As I said before :
> > 60 threads,5 request per session, 10 times [asynchronuos reading from
input
> > stream]=> no exceptions
> > 60 threads,5 request per session, 10 times [synchronuos reading from
input
> > stream]=> get exceptions
> > 90 threads,5 request per session, 10 times [asynchronuos reading from
input
> > stream]=> get exceptions
> >
> > Suggestions???
> >
> > Note : i want to check the reliability of the application under
conncurrent
> > load and not the performance(atleast for now).I had never used JMeter.
> >
> > Raj
> >
> > -----Original Message-----
> > From: peter lin [mailto:peter.lin@labs.gte.com]
> > Sent: Thursday, May 16, 2002 2:26 PM
> > To: Tomcat Users List
> > Subject: Re: Conncurency issue with tomcat???
> >
> > >From my understanding of the specification, session ID aren't
gauranteed
> > to be unique, but should be unique while the server is running. If the
> > server is restarted, it is possible to get identicle session ids.  I
> > doubt this is your problem.  More likely what is happening is your test
> > application isn't accepting the cookie. If that is the case, tomcat and
> > any servlet container will create an id for every request, so it's
> > possible you will get duplicates.
> >
> > It's only when the browser accepts the cookie, that registers that
> > session id as "taken".
> >
> > peter lin
> >
> > "Ghorpade, Rajendra" wrote:
> > >
> > > No! I did'nt tried it with JMeter.
> > > But when I ran the test without any processing on the server then it
works
> > > fine.
> > > So I do'nt know how this would affect the behaviour of the server.
> > > may be it is the underlined implementation of the socket in the
> > > HttpUrlConnection..Just a wild guess!!
> > >
> > > Did u heard about problem with the same session (sesion id) being
> > processed
> > > in two different thread at the same time?
> > > I had put a check in the *service* method for this.I store the session
ID
> > in
> > > hashtable(class variable to the servlet) when I enter the service
method
> > and
> > > remove it when i get out of this method.The adding and removing is
done in
> > a
> > > synchronized block with hashtable as an argument.So this is thread
safe.If
> > > there is a session with the same id I throw an Concurrent exception.
> > > And to mine suprise I get this exception...:-)
> > >
> > > Any suggestion????
> > >
> > > Raj
> > >
> > > -----Original Message-----
> > > From: peter lin [mailto:peter.lin@labs.gte.com]
> > > Sent: Thursday, May 16, 2002 1:44 PM
> > > To: Tomcat Users List
> > > Subject: Re: Conncurency issue with tomcat???
> > >
> > > have you tried using jakarta JMeter to perform the same test?
> > >
> > > peter
> > >
> > > "Ghorpade, Rajendra" wrote:
> > > >
> > > > Hi again,
> > > >
> > > > One information missing in the previous mail
> > > > I am using tomcat 4.0.1
> > > >
> > > > Raj
> > > >
> > > > --
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