Peter Rossbach wrote:

> This seems more that your application code access session attributes 
> after
> the session is invalid. Review your application page flow!

Well, I have a filter to catch invalid sessions before any other logic
is executed.  If that passes, then I assume that the rest of the request
is going to have a valid session.  The only place that invalidates the
session is a log out action. 

I'll look into it further as well.

-Dennis

>
> Peter
>
> Am 05.01.2006 um 17:27 schrieb Dennis:
>
>> Peter Rossbach wrote:
>>
>>> Hey Dennis,
>>>
>>> can you please, send your log information of the
>>> SessionAlreadyInvalidation errors?
>>> Every hint is welcome...
>>
>>
>> It's actually an IllegalStateException:
>>
>> java.lang.IllegalStateException: getAttribute: Session already 
>> invalidated
>>         at
>> org.apache.catalina.session.StandardSession.getAttribute
>> (StandardSession.java:1009)
>>         at
>> org.apache.catalina.session.StandardSessionFacade.getAttribute
>> (StandardSessionFacade.java:109)
>>
>> The rest of the stack trace is simply the trace of the thread that
>> executes that request.  It is different depending on where I called
>> session.getAttribute from.  It seems to be able to happen pretty much
>> anywhere I call the getAttribute method though.
>>
>> I'm using the default cluster configuration except I'm still on the
>> SimpleTcpReplicationManager and I changed the multicast addess and  port
>> for our production cluster.  I'm thinking of trying out the 
>> DeltaManager
>> but I don't have any reason to suspect the Manager has anything to do
>> with this exception.
>>
>> -Dennis
>>
>>>
>>>
>>> thanks for testing
>>> Peter
>>>
>>> Am 05.01.2006 um 17:09 schrieb Dennis:
>>>
>>>> Ronald Klop wrote:
>>>>
>>>>> Hello,  Sorry for pushing, but how stable can I expect Tomcat  5.5.15
>>>>> to be in a clustered server? (4 nodes) We are running 5.0.28 now  and
>>>>> it has some issues which seem to be solved in 5.5.x. Are there 
>>>>> people
>>>>> running 5.5.15 in a production environment already?  Ronald.
>>>>
>>>>
>>>>
>>>> We are.  It does seem to be much more stable than the previous
>>>> revisions
>>>> in term of clustering.  (The older revisions printed thousands of
>>>> warning messages about various cluster and socket issues.  We do get
>>>> some SessionAlreadyInvalidated errors that I haven't tracked down 
>>>> yet.
>>>> (I think it is when a browser submits something twice perhaps...  like
>>>> the IE double click maybe.)
>>>>
>>>> The only issue I noticed is that the trimSpaces setting in web.xml
>>>> isn't
>>>> acting the way it did before.  (It's not trimming spaces.)
>>>>
>>>> -Dennis
>>>>
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