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тАО06-15-2003 06:47 PM
тАО06-15-2003 06:47 PM
initing a queue pointing to null device
How can i define a printer queue pointing to null device so that print requests can be submitted and completed without consuming computing resources?
I have tried to initting queue pointing to node::nla0:
but when i attempt to start it, the following error prompts up and the queue fails to startup:
%SYSTEM-W-DEVALLOC, device already allocated to another user.
Regards,
Patrick.
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тАО06-17-2003 04:43 AM
тАО06-17-2003 04:43 AM
Re: initing a queue pointing to null device
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тАО06-17-2003 05:19 PM
тАО06-17-2003 05:19 PM
Re: initing a queue pointing to null device
As a result, thousands of pending jobs accumulated at the printer queues in a couple of days and i have to delete them periodically.
What I want to do is direct the submitted printer jobs to some "NULL" device so that the jobs will be consumed immediate after they are submitted.
I have tried to init the queue to null device by following command but failed:
$ init/queue queue1 /on=node::nla0: /start
I am still looking for other possible solution.
Thanks and Best Regards,
Patrick.
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тАО06-17-2003 07:49 PM
тАО06-17-2003 07:49 PM
Re: initing a queue pointing to null device
-Ben
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тАО06-17-2003 08:32 PM
тАО06-17-2003 08:32 PM
Re: initing a queue pointing to null device
> /PROC=DCPS$SMB
Only if you have DCPS installed, right?
It would be easy enough to create a batch job to cruise the queue(s) and delete the entries on a periodic basis.
Also, you can define system logical names so that all the entries go to the same queue, so that you only have to "cruise" one queue. For example,
$ define/system/exec QUEUE_1 QUEUE_NOWHERE
$ define/system/exec QUEUE_2 QUEUE_NOWHERE
This will cause jobs sent to QUEUE_1 or QUEUE_2 to be queued into QUEUE_NOWHERE.
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тАО06-18-2003 03:42 AM
тАО06-18-2003 03:42 AM
Re: initing a queue pointing to null device
.... our developers are reluctant to revise their batch jobs not to submit print jobs to such queues since it will not affect the result of batch jobs. ....
They _SHOULD_ be educated....
Anyway:
Just one execution queue, say "DEVELOPERS_PRINTER" printing to a regular (well working) printer, or, eventually, the bit-bin....(would it be possible: the devloper's terminal; THAT would teach them ;-))
Then redefine the queues the developer's seem reluctant to avoid, as /GENERIC and using DEVELOPERS_PRINTER as executing queue.
OpenVMS Developer & System Manager
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тАО06-18-2003 03:44 AM
тАО06-18-2003 03:44 AM
Re: initing a queue pointing to null device
I am a developer myself.....
OpenVMS Developer & System Manager
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тАО06-18-2003 07:45 AM
тАО06-18-2003 07:45 AM
Re: initing a queue pointing to null device
This way the system automatically cleans up after itself and you don't have to do anything manually.
HTH
Marty
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тАО06-18-2003 09:04 AM
тАО06-18-2003 09:04 AM
Re: initing a queue pointing to null device
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тАО06-18-2003 09:41 AM
тАО06-18-2003 09:41 AM
Re: initing a queue pointing to null device
I'm sure Patrick can find a time in the wee hours of the morning when things are quiet. If not, he can make things quiet by stopping the batch queues and checking for job completion of running batches before deleting the queues.
I'm sure a little analysis of the job schedules and run times will reveal the best time to recycle the queues.
Marty