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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

3393.0. "ultrix export/historian won't work for me" by GIDDAY::DRANSFIELD (Mike Dransfield, Sydney RSSG) Tue Jul 21 1992 07:36

    Is there some magic to getting the export and historian fm's to work
    on ULTRIX?
    I have a couple of errors when I try to use it.
    1) The background processs's keep dying with
    semget failure
    semget failure: No space left on device
    MCC-F-FATAL, fatal DECmcc error
    [5]    Exit 1               /usr/mcc/mmexe/mcc_historian_fm_bg
    .domain.csc-1-13
    
    semget failure: No space left on device
    
    [4]    Exit 20              /usr/mcc/mmexe/mcc_exporter_fm_bg
    mcc_export_rdb
    
    2) when I do a start export or start record (from the iconic map pm)
    I get a
    entity existance cannot be determined error.
    
    I increased some of the SEM* values and now have:
    /*
     * Sizing constants
     */
    
    #define SEMMAP 10
    #define SEMMNI 10
    #define SEMMNS 120 /* increased from 60 to 120 for mcc */
    #define SEMMNU 60 /* increased from 30 to 60 for mcc */
    #define SEMMSL 25
    #define SEMOPM 10
    #define SEMUME 30 /* increased from 10 to 30 for mcc */
    #define SEMVMX 32767
    #define SEMAEM 16384
    
    This is on a 5000/200 with 24Mb memory running
    Ultrix  V4.2 MCC V1.2
    
    Any clues as to why I am having problems with this?
    
    Thanks,
    Mike

T.R	Title	User	Personal Name	Date	Lines
3393.1	Are you using the new kernel?	TOOK::MINTZ	Erik Mintz, dtn 226-5033	`Tue Jul 21 1992 11:32`	9
	Depending on your use, those values may still be too small. I believe there is a formula in the Historian Use book (I don't have one in front of me at the moment). In any case, after you change the semaphore values, you must: 1) rebuild the kernel 2) Copy the new kernel to /vmunix 3) reboot
3393.2		TOOK::SHMUYLOVICH		`Tue Jul 21 1992 12:51`	3
	You can find a formula to calculate the number of semaphores in the release notes for Historian and Exporter.
3393.3	any actual values?	GIDDAY::DRANSFIELD	Mike Dransfield, Sydney RSSG	`Wed Jul 22 1992 05:07`	16
	re: .1,.2 Thanks for the replies. I had read the bit about increasing the semaphore values, it just didn't translate too easily for me into values which worked! I have a single user of mcc and no other process, except for the two background processes (exporter and historian) and one copy of the iconic map. I used the values in .0 and expected them to work but they didn't. and yes I did use the new kernel... I have increased them again and will try tomorrow, but if anyone has used this, I would be interested to see the values in their sem.h file... thanks, Mike
3393.4	values that work for me	GIDDAY::DRANSFIELD	Mike Dransfield, Sydney RSSG	`Thu Jul 23 1992 04:49`	19
	To answer my own question, here is my sem.h values, which now work having increased them some more from .0. /* * Sizing constants / #define SEMMAP 10 #define SEMMNI 20 / increased from 10 to 20 from mcc / #define SEMMNS 240 / increased from 60 to 240 for mcc / #define SEMMNU 120 / increased from 30 to 120 for mcc / #define SEMMSL 25 #define SEMOPM 10 #define SEMUME 60 / increased from 10 to 60 for mcc */ #define SEMVMX 32767 #define SEMAEM 16384 Mike