Celeste, replace 'setHeader' with 'addHeader' in the last statement
only? BenG.
Haseltine, Celeste wrote:
>Will,
>
>Good point. All of our web pages carry the header below. Perhaps that is
>why we have not experienced this problem.
>
>response.setHeader("Pragma","no-cache"); //HTTP 1.0 refetch completely next
>time document is
>needed.
>response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
>response.setDateHeader ("Expires", 0); //prevents caching at the proxy
>server, refetches ONLY if it
>has been modified since last fetch
>response.setHeader("Cache-Control","no-store"); //HTTP 1.1
>
>
>Celeste
>
>-----Original Message-----
>From: Will Berger [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, March 27, 2002 10:38 AM
>To: JRun-Talk
>Subject: RE: Difficult To Reproduce Session Issue
>
>
>I am coming late to this thread, but I thought I would give you my 2 cents.
>We ran into this problem sometime ago where it appeared to be a jrun bug
>that caused sessions to get mixed up, turned out to be that the new client
>that we signed up had a proxy caching server and our jsp were being cached.
>Adding the
>
>response.addHeader("Pragma", "No-cache");
>response.addHeader("Cache-Control", "no-cache");
>response.addDateHeader("Expires", 1);
>
>This resolved the issue.
>
>Will
>
>-----Original Message-----
>From: Mike Collins [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, March 27, 2002 11:01 AM
>To: JRun-Talk
>Subject: Re: Difficult To Reproduce Session Issue
>
>
>Some ideas on troubleshooting this issue:
>
>I can think of 3 reasons why someone can get the wrong session data:
>1. your jsessionid cookie somehow gets reset during the session to another
>valid session
>2. when your session is initialized you step on someone else's httpsession
>object
>3. requests with an incoming jsessionid gets bound to the wrong httpsession
>object
>
>Some ideas on troubleshooting the above scenarios:
>- upon the creation of a new session, record the jsessionid in the
>httpsession object.
>- if a value already exists you know that you have just hit #2
>- on all subsequent requests validate the jsessionid with the value on the
>httpsession object. If they are not equal you know the problem is 1 or 3.
>
>If you add these lines of code I would think you have a pretty good chance
>at isolating and stopping folks from getting the wrong session. I would
>also hope it might lead us to a resolution.
>
>My gut tells me it is number 3, the others seem like they would have
>revealed themselves by now.
>
>Regards,
>Mike
>
>
>
>----- Original Message -----
>From: "Jeff Ramin" <[EMAIL PROTECTED]>
>To: "JRun-Talk" <[EMAIL PROTECTED]>
>Sent: Wednesday, March 27, 2002 9:08 AM
>Subject: Re: Difficult To Reproduce Session Issue
>
>
>>Well, as long as we're commenting on the competition:
>>
>>My current lightweight app server of choice is Resin. I don't have
>>much experience with it yet, but it seems solid. And fast. My first
>>option used to be JRun, but given that this serious bug has gotten
>>through Macromedia's quality assurance system 3 times, I have
>>lost faith.
>>
>>As for WebSphere - I don't know about versions 3.5 or 4.0 (is 4.0
>>out yet?), but I have a lot of experience with 3.0. My advice given
>>that experience: RUN AWAY AS FAST AS YOU CAN.
>>
>>
>>michael veit wrote:
>>
>>> We evaled both of those WebSphere and WebLogic - Websphere is much
>>>
>harder to work with then is WebLogic. WebLogic is close to JRun in ease of
>administration. But they both are very expensive, but "you get what u pay
>for".
>
>>> "Haseltine, Celeste" <[EMAIL PROTECTED]> wrote: Michael,
>>>
>>>We haven't seen this problem, not yet anyway. But our servers are not
>>>
>under
>
>>>much of a load yet, as our site is just getting off the ground. We
>>>
>expect
>
>>>that to change over the next three to four months. If we do run into the
>>>same problem, I suspect that will be the final straw for the owner of
>>>
>this
>
>>>facility, and he too will decide to go with another JSP/Servlet server.
>>>
>The
>
>>>only thing stopping him now is the much greater costs of either BEA
>>>
>Weblogic
>
>>>and IBM Websphere, which are the only two JSP/Servlet/EJB servers I
>>>
>would
>
>>>consider going to at this point in time. Of course, since I recommended
>>>JRUN Server to the owner (mainly for the much lower costs and ease of
>>>
>use
>
>>>for a young group that was new to JSP/Servlet development and web
>>>administration) it would probably mean my job. Oh well, such is life!!!
>>>
>>>If you do find a patch or get additional assistance from
>>>
>Macromedia/Allaire,
>
>>>please post it on this listserver. Good luck!!!
>>>
>>>Celeste
>>>
>>
>>
>>--
>>Jeffrey Ramin
>>Berbee
>>5520 Research Park Drive Madison, WI 53711
>>[EMAIL PROTECTED]
>>608.298.1024
>>
>>Berbee...putting the E in business
>>
>>
>
>
>
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