T.R | Title | User | Personal Name | Date | Lines |
---|
866.1 | EIS solution ? | UTRTSC::SCHOLLAERT | Sweden, here we come | Mon Jun 15 1992 10:29 | 15 |
| Cb,
>A customer would like to know if it is possible to have more than one FETCHER
>running at the same time.
Don't think so.
>Also, is the FETCHER running as a detached process available for customers. If
>so, I would appreciate a pointer.
See note 108.6 Perhaps you can sell it as EIS solution.
Regards,
Jan
|
866.2 | Simultaneous fetchers may be OK | FORTY2::ASH | Grahame Ash @REO | Mon Jun 15 1992 12:15 | 20 |
| Running simultaneous Fetchers may well be possible - I can't immediately think
of anywhere which will definitely stop it:
MR should allow multiple fetches from the A1 mailbox;
I'd define OA$MTI_DATA separately for each Fetcher to ensure no clash of .NBS
filenames;
The Pending file is going to take a hammering, as both (all?!) Fetchers will
be writing the FETCHER QUEUE record;
Set up each Fetcher as a separate ALL-IN-1 user, just as for simultaneous
Sender and Fetcher;
Not sure if it can handle contention on OA$MTI_ERR (if any errors DO ocur!) -
maybe this can be redefined per process as well?
Hhmm, let us know if you try it.
grahame
|
866.3 | Seems to work! | MSDSWS::DUNCAN | I'm in trouble again! | Wed Jun 17 1992 17:12 | 41 |
| <
<Running simultaneous Fetchers may well be possible - I can't immediately think
<of anywhere which will definitely stop it:
<
I have asked this question in the past and was told it could not be
done. But I have done what you said and it seems to work!
<
<MR should allow multiple fetches from the A1 mailbox;
<
Again, no problem that I could tell.
<
<I'd define OA$MTI_DATA separately for each Fetcher to ensure no clash of .NBS
<filenames;
<
done.
I ran two FETCHERs with approx 320 messages in the A1 mailbox.
Cpu Time Elapsed time
Fetcher 1 00:04:41.97 00:32:56.37
Fetcher 2 00:04:40.66 00:32:47.30
One fetcher with approx 320 messages in the A1 mailbox.
Cpu Time Elapsed time
Fetcher 00:10:31:63 00:43:08.07
This was tested on a VS3100 mod 48 16mb memory. System load was about
the same for both tests. I do not know if the results would be
diffferent on a cluster.
While my tests were static, no new messages while this was running, I
am unsure if it is worth the effort.
Any comments?
Regards,
Darryl
|
866.4 | | IOSG::WDAVIES | There can only be one ALL-IN-1 Mail | Thu Jun 18 1992 11:08 | 6 |
| In elapsed time alone, a saving of 25% is pretty impressive ?
In // processing you've under halfed the CPU usage - if you were
running on a cluster I'd expect you to see your elapsed time to half as
well I think.
Winton
|
866.5 | It won't work reliably | IOSG::CHAPLIN | Andy Chaplin | Wed Jun 24 1992 16:23 | 10 |
| Although the multiple Fetcher test "seemed" to work you will eventually
run into problems if you run it live.
The trouble is that each fetcher will use the FETCHER QUEUE record in
the pending file as its temporary work queue. This means that both
fetchers may end up processing the same message. This will result in
multiple deliveries, and/or errors in the MTI_ERR log, and/or will
cause the fetcher to bomb out completely.
Andy
|
866.6 | Supported or not, that's the question | UTRTSC::SCHOLLAERT | IOS: better than the real thing | Thu Jun 25 1992 08:36 | 14 |
| .-1
Andy,
> Although the multiple Fetcher test "seemed" to work you will eventually
> run into problems if you run it live.
So the official statement to customers should be:
"Multiple fetchers are NOT supported"
Regards,
Jan
|
866.7 | Is there any change planned ? (please say yes) | TAV02::HANOCH | Who ? Me Worried ? | Wed Jul 22 1992 12:25 | 25 |
| Dear all !
I'm working with Chaim and referring to the same customer's problem.
The customer is dealing with great amount of messages now (more
than 3000 messages per day) and starting a universal network of VAXs
with ALL-IN-1 . Many more messages are planned. Even though the system
can handle regular day-to-day work, in case of network failure a large
queue of incoming messages is created. It takes many hours (much too
many) to receive all those messages. The customer has a grate need to
fasten the receiving process.
The customer question is:
Are there any plans to change the ALL-IN-1 fetcher so multiple
fetchers could be run simultaneously ?
I'm pretty sure that more customer around the world will meet that
problem, as we are selling ALL-IN-1 to bigger organizations.
I waiting impatiently for an answer, hoping desperately for a
positive one.
Thanks in advance,
Hanoch
|
866.8 | | IOSG::WDAVIES | There can only be one ALL-IN-1 Mail | Wed Jul 22 1992 12:42 | 1 |
| Go to A1INFO conference for privileged information...
|
866.9 | If it is a big account lets talk | A1VAX::COLQUITT | It is the customers system - <not Digital's> | Wed Aug 19 1992 23:18 | 13 |
|
What is the name of this large customer and large customer
networK ?
Sounds like something you should be up the product manager
about. Send you mail to Bill Colquitt @ZKO with details.
You are right many large accounts will want a higher through.
Is what we are doing high enough ?
You tell me.
bill
|
866.10 | What next Charlie Christ? (:==:) | AIMTEC::WICKS_A | It wasn't supposed to end this way | Wed Aug 19 1992 23:22 | 1 |
| Bill Colquitt in Notes! A commemorative stamp has been issued.
|