Re: [ebxmlms-general] Production load balancing with Hermes?

[Patrick Y. <kc...@ce...>]

Another issue is that, currently Hermes is designed to reload the unsent
messages in the queue and send it again when startup. So, it may need some
modification on the startup logic in Hermes to make sure there will not be
more than one Hermes instances who pick up the same message in the queue.

Regards, -Patrick



On 10/4/05, David RR Webber (XML) <da...@dr...> wrote:
>
> We are deploying Hermes server here in a UNIX environment and java
> containers with Oracle database.
>  I have a question regarding this (see below) - I'm assuming that the
> Oracle will control the record access and so on - so this comes down to
> architecturally if Hermes can handle this - eg - adding new entries to th=
e
> transaction queue, etc, each instance should be OK since the table record
> locking will return unique results and prevent one instance tripping up
> another.
>  Anyone tried this already or have thoughts?
>  I know part of this will be improved using Hibernate - but we'd like to
> do this right away this month - and then upgrade to the Hibernate version
> when its available.
>  All feedback appreciated.
>  Thanks, DW
>
>  What we need to do is have different containers (and thus different
> instances of Hermes, with different connections to the database) run
> concurrently, pointing to the same set of Hermes message tables.
>
>  So the question is, can multiple instances of Hermes, in different
> containers point to the same database tables (ie, same user id, two
> containers pointing to the same message queue/audit tables in the Hermes
> schema. That is what we'd like to do.
>
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--
Regards, -Patrick