Hi Chris,

I would love to see an example of such a filter.

Thanks,
Amit

On Mon, Mar 2, 2009 at 5:43 PM, Christopher Schultz
<ch...@christopherschultz.net> wrote:
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> Amit,
>
> On 3/2/2009 4:21 PM, Amit Chandel wrote:
>> But only issue is that Tomcat doesn't persist sessions to DB
>> synchronously as is the case with in-memory replication where session
>> data is first replicated and then the request gets served. So if
>> master fails, and the session data has not been persisted, subsequent
>> requests going to the other tomcat node will see old session data
>> from DB, and might frustrate the *user*. I would like to know how
>> synchronous persistance of session data with Tomcat is done in
>> practice.
>
> I have no experience with JDBCStore, but you could always implement your
> own SessionManager that does synchronous database updates.
>
> If you don't want to implement a SessionManager (which might be a bit
> heavy-handed and certainly Tomcat-specific), you could also write a
> filter that wraps the HttpSession with your own object that does
> synchronous DB reads and writes. This might also save you a LOT of RAM.
> If you use the database exclusively for session attribute data, your
> in-memory footprint for sessions could drop dramatically.
>
> If you'd like an example of such a filter, I could probably provide one.
>
> - -chris
>
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