Re: Forte Environment on OpenVMS Cluster - doubling up forno reason?

Question

Hi,
I tested Forte on OpenVMS more than one year ago. So, it's only
what I remember and it was on Forte R2. Normally, it should work
exactly as you described if you have one TCP alias for the two nodes.
The test I made (one year ago) prouved that Forte does not
know the active cluster of Digital.
Now I work on RS6000 and we have planned to use HACMP (but the cluster
is not active). We use one TCP alias for the two machines, and the same
socket number. So if Machine 1 fails, HACMP will startup Forte and the
environment on the Machine 2. The application is made to be able to
reconnect
to a new environment (and name server). For the deployment, we should
deploy
only once, because the environment sees only one alias and socket on the
TCP
level. On that Idea, you should try to start the same environement on
the
2 machines with one alias and the same socket. The deployment should be
done
only once, but you should need to load distrib twice. You may need to
deploy
(Appdist directory to have a local load) manually.
I'm really interested on the result if you make the test.
Hope it helps,
Daniel Nguyen
Freelance Forte Consultant
Dirk Haben (Tel [phone]) wrote:
>
G'Day
Anyone out here using Forte on a OpenVMS CLUSTER?
I'm running an environment over a cluster and want to know if I can cut
down on any builds since both nodes use the same directory on the same
disk(s) via the same controller etc.
For a start I don't want Forte to "distribute" the new appdist and userapp
to the clustered node - it's already "there".
If I can cut down on the loading of the app and on the install that would
be good to.
BTW, so far I only replicate a loadbalanced EntityManager part to attach to RDB dbs on the two machines - 5 each node. Same database.
Dirk
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Answer 1

I have found it possible to do "stand-alone" development without a node
manager or environment manager (under both Windows NT 3.51 & 4.0) by:
1) Creating a shadow repository
2) Detaching the shadow repository
3) Running Forte stand-alone against the shadow (switched using Forte
Control Panel)
All application resources must be installed & running local (ODBC connection
to databases, etc...)
-- Greg
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415.329.7243 x 305
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George,
There are a couple of ways you can do testing on a single PC.
1. If you have NT 3.5.1 or 4.0 on your PC, you can run the
environment manager (nodemgr -e YourEnvName). With an environment
manager running, you can then run Forte Distributed, partition, and
run distributed which will start server partitions on the NT box, etc.
2. If you have Win 3.1 or Win 95, then you cannot run an environment
manager or server partitions, but you can still connect to an ODBC database.
Setting up an ODBC resource manager is very straight-forward. You do some
of the work in the ODBC control panel (ie. mapping a name to a particular
data source such as Access file, flat file, etc.). You then run Forte
Standalone which will automatically use ODBC for any DBSessions or
DBResourceMgr
service objects that need to get created by a run. You don't need to
change your service object to point to an ODBC Resource Mgr, the system
does it automagically.
Hope this helps,
Bobby