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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

3059.0. "Export RDB file : two records, the same timestamp" by KETJE::REMANS () Fri May 22 1992 12:42

WE are exporting FDDI bridge line counters with DECmcc V1.1 .

In the RDB file we encounter sometimes two records with the same 
timestamp for the same line. The first record contains certain values
for some errors while in the second record there is NO value for that error.
This gives us problems in the DTR procedures.
How can you explain this behaviour ?


	Guido

T.R Title User Personal
Name Date Lines

3059.1 TOOK::SHMUYLOVICH Wed May 27 1992 14:04 36

T.R	Title	User	Personal Name	Date	Lines
3059.1		TOOK::SHMUYLOVICH		`Wed May 27 1992 14:04`	36
	Exporter V1.1 does not write in the RDB the status of the Show directive which is used to get data. If this requests fails no attribute data are written to the RDB. Only the following columns are written in the current record: - Time_Stamp; - Entity class identification ( in your case Bridge and Line); - MCC_EXPORT_SEQUENCE; - MCC_EXPORT_SEQUENCE_NUMBER. In the case when the Show request is not passed to the corresponding AM (for example, if Information Manager detects situation when "schedule time already passed") the Time_Stamp column has its previous value. This is fixed in V1.2: 1. The value of the Time_Stamp column is updated; 2. A new columns are added: - MCC_EXPORT_POLL_STATUS - has a value "1" if at least one attribute partition is returned; - MCC_CVR_<attribute_partition_name> - has a value "1" if the corresponding attribute partition is returned. If you need to continue to use V1.1 I would recommend to use the column "TIME_<attribute_partition_name>" (in your case "TIME_Counters") instead of "Time_Stamp". This column has a value only if attributes from the counters partition are returned from the Show directive and written into RDB. Please note that it's possible to have a situation when not all attributes are returned and as a result some of the columns the RDB table are empty. Hope this helps, Sam

Exporter V1.1 does not write in the RDB the status of the Show directive 
which is used to get data. If this requests fails no attribute data are
written to the RDB. Only the following columns are written in the current
record:
	- Time_Stamp;
	- Entity class identification ( in your case Bridge and Line);
	- MCC_EXPORT_SEQUENCE;
	- MCC_EXPORT_SEQUENCE_NUMBER.

In the case when the Show request is not passed to the corresponding AM
(for example, if Information Manager detects situation when "schedule time
 already passed") the Time_Stamp column has its previous value.

This is fixed in V1.2:
	1. The value of the Time_Stamp column is updated;

	2. A new columns are added:
	   - MCC_EXPORT_POLL_STATUS             - has a value "1" if at least 
					          one attribute partition is 
						  returned;
	   - MCC_CVR_<attribute_partition_name> - has a value "1" if the 
						  corresponding attribute
						  partition is returned.

If you need to continue to use V1.1 I would recommend to use the column
"TIME_<attribute_partition_name>" (in your case "TIME_Counters") instead of
"Time_Stamp". 
This column has a value only if attributes from the counters partition are 
returned from the Show directive and written into RDB. Please note that
it's possible to have a situation when not all attributes are returned
and as a result some of the columns the RDB table are empty.


	Hope this helps, Sam