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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

1449.0. "PA ACCVIO's for missing data" by JETSAM::WOODCOCK () Wed Sep 04 1991 19:42

Hello,

A while back PA was used to produce statistics on a circuit for past time.
Circuit counters were polled hourly. The PA command used was something like:

	show node4 xxxx circuit syn-0 all statis, for start 6:0 every 1:0 -
	until 10:0 dur 1:0, in domain .yyy

The command works well if there are no polling problems and the data is stored
normally. But if a poll is missed for whatever reason in the scope of interest
timeframe PA ACCVIO's. Sometimes you are kicked out of MCC sometimes not. If
you are not and you retain the MCC prompt then *any* subsequent PA commands
(whether the data is stored properly or not) ACCVIO's again. This continues
until MCC is exited which means PA is useless until another MCC session is
opened.

In the above example the only way to get stats for the time frame is to increase
the interval (ie every=2:0 and dur=2:0). Because missed polls appear to happen
occasionally with MCC (for different reasons) this should be fixed. PA at a
minimum should bow out gracefully, or better yet go to the next poll and produce
a stat for the longer duration automatically.

If you need an actual example let me know and I'll see if I can recreate it.
This error is consistent so you can probably recreate the situation there also.

best regards,
brad...
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1449.1We got it too!TOOK::ANWARUDDINAnwarThu Sep 05 1991 13:1812
We stumbled across this problem last week. What we observed was that

	1. If the duration is < the poll period, PA ACCVIO'd.
	 
	2. If the start time is not specified, i.e, start = 12-Jun-1991,
	   (default start time is midnight) then it worked OK even
	   with duration < than poll period.

	3. If the start time was >= the poll period everything was fine.

I don't think there were any missed polls in the data we were testing with.
This problem will be fixed.
1449.2thanksPATS::WOODCOCKThu Sep 05 1991 14:5615
>>>	1. If the duration is < the poll period, PA ACCVIO'd.
	 
Hi Anwar,

A slight word change in the above statement may be a bit more accurate and help
when you go looking for the problem. If a poll is missed this results
in an actual larger poll period in reality. Therefore the problem statement
could read:

        1. If the duration is < the "interval of successfully stored data",
						  PA ACCVIO'd.

thanks for listening, this one hurts for production batch jobs,
brad...