-----------------------------
Please read the FAQ!
<http://java.apache.org/faq/>
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How did you get fail over to work? I have Apache running on a Linux box
and two JDKs running on an NT box. The load balancing works just fine,
but when I kill one of the JDKs it doesn't fail-over.
Jon
Tommi Reiman wrote:
>
> -----------------------------
> Please read the FAQ!
> <http://java.apache.org/faq/>
> -----------------------------
>
> I have a setting in with there's one apache 1.3.6 running and two JServ
> 1.0 instances all on the same machine. I've started both JServs manually
> and the load balancing seems to work nicely, but there are problems with
> sessions when I kill one of the JServs:
>
> - client comes to my apache-site, requests a servlet
> -> apache routes client to Jserv 1
>
> - new session, client needs to log in (login/passwd)
> -> get session-id = 3fc28f4de242b368.1.934485334173.JS1
>
> -> JServ 1 killed
> -> Clients session data lost (if not stored in disk)
>
> - client requests same servlet again
> -> Apache routes client to JServ 2 (which is running)
>
> -> new session is created, client needs to log in again
> - client gets new session-id: 3feeaccb6388286d.2.934485391511.JS2
> (JS1 -> JS2 not the only change in that!)
>
> When the client gets in contact with Jserv 2, he has an old session-id
> cookie with him but no session object in Jserv 2, so Jserv 2 creates a new
> session for him (not what I wanted). If any JServ developers read this, I
> would be most pleased if someone creates a possibility of a session-data
> 'share', from where Jserv 2 could fetch the old session-data linked to
> that 'dead' session-id! This would require some sort of 'distributed
> shared memory' -solution, database or some other other container. Load
> balancing would be much more fault tolerant after that.
>
> Tommi
>
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