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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

4047.0. "Problems with notification clear after exception" by ANOSWS::COMFORT (Spent a little time on the hill) Fri Nov 06 1992 09:31

    
    Hi,
    
    I am sure I am referencing an "old" problem and just want to know
    what the current status is, and maybe supply some extra information.
    I just finished reading 3887.* because I am having problems with
    alarm clear notifications.  The previous note refers to simple alarms,
    which I believe I have.  I am checking for node reachability in
    the following manner:
    
    
    Create domain .my_domian rule test_node_phred -
    expression=(node4 phred state = off, at every 00:01:00),-
    exception handler=do_something.com,-
    severity=critical
    
    I also then target the entity in question, since the above only
    generates an indeterminate.
    
    assign target domain .my_domain -
    event source = domain .my_domain rule test_node_phred, -
    event name = "OSI Rule Exception", -
    target entity = "node4 phred", -
    target severity = critical
    
    The clear notification after an exception tends to work in isolated
    instances, but does not work on a continual basis.  In fact, the first
    two or three days the "node reachablility" rules were running (only 64
    of them and we want to do more) the events cleared upon node
    reachability after an exception, but after that (about a week and a
    half now) it has ceased to issue the clear notification. We are now
    deciding whether we need to redesign the alarms or if this problem has
    been fixed in some of the maintenance releases. How should the above
    scenario work? 
    
    I am running MCC V1.2 and VMS 5.5.
    
    Thanks in advance for any informatin.
    
    Regards,
    
    Dave Comfort
    
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4047.1no CLEAR alarmMFRNW1::SCHUSTERKarl Schuster @MFR Network ServicesWed Nov 11 1992 10:227
    I have exactly the same problem ( before with V1.2, and now still with
    V1.2.3 ).
    The CLEAR-Alarm notification after an alarmexception only fires
    sometimes. ( A SHOW Status of the alarmrule says FALSE and CLEAR ).
    I use simple comparison expressions in the rules.
    
    Karl 
4047.2Any answers??ANOSWS::COMFORTSpent a little time on the hillMon Nov 16 1992 15:2914
    
    Has anyone reviewed this issue yet?  This is becoming a major "Bad
    Press" item for DECmcc.  It would have been better had it not worked
    at all, but right now the customer perceives no net increase in
    functionality over V1.1, ie. the icons do not  change back
    automatically.  I need to recommend something very quickly...the
    powers that be saw it work and now are questioning why it doesn't
    anymore.  I can write alarms to circumvent the situation, but would
    prefer to obtain a valid reason/solution for the inconsistency.
    
    Regards,
    
    Dave Comfort

4047.3May need to be escallatedTOOK::MINTZLKG2-2 near pole X3, cube 6072, dtn 226-5033Mon Nov 16 1992 15:549
Well, according to note 3887, this is working as designed.

If that is the case, and the functionality does not satisfy
your customer, then please make sure the change makes the requirements
list (see NOTED::EMF_REQ, or contact product management directly).

If you believe there is a bug, then either file a QAR (internal)
or an SPR (for customers).

4047.4re .-1ANOSWS::COMFORTSpent a little time on the hillMon Nov 16 1992 16:2815
    
    I believe that the situation described in 3887.* is NOT the same
    situation as is documented here.  In fact, I have alarms that do
    change_of and I write two alarms, one for each condition so as to turn
    the entity critical and clear and I realize the differences when using
    this approach.  I will (I guess) pursue  this matter in terms of a QAR
    or SPR, though I have never done this before. I do feel however that if
    you read 3887 closely, then the alarm as exhibited in .0 should work
    ACCORDING to the design AND documentation.  And in fact it does for a
    while, then fails.
    
    Regards,
    
    Dave Comfort 
    
4047.5TOOK::MINTZLKG2-2 near pole X3, cube 6072, dtn 226-5033Mon Nov 16 1992 17:316
OK, I'll bring this back to the attention of the relevant developer.
But make sure the problem is escallated as well, since it clearly
has not been resolved by notes over the last several months.

-- Erik

4047.6The problem has been fixedTRM::KWAKMon Jan 11 1993 11:1233
    
    RE: .0 and previous replies.
    
    Brad Woodcook submitted a QAR (#8 in MCC013_EXT database) on this
    problem with comprehensive description. 
    
    The problem has been fixed on 1/9/93. I am attaching the answer
    (editted) to the QAR.
    
    After investigating this problem, it was found that the problem
    was in 3 different modules: Alarms, DNA4_AM and Notification PM.

    In case of rule transition ERROR to FALSE, the DNA4_AM was returning
    different identifiers (Phase4 address and Fullname) even though the
    node4 is registered, and the Alarms FM could not find the rule transition
    of the node4 entity. The DNA4_AM was fixed to return the same identifiers
    on both successful and unsuccessful (ERROR) evaluations.

    The subentity wildcarded rules were not handled properly in Alarms FM 
    and Notification PM.  In successful evaluations, the AM returns a 
    specific entity instance even if the rule expression is wildcarded 
    (the GE wildcard is handled by Alarms and the SE wildcard is handled by 
    the AM). However, in case of error (when a node is down), the AM returns 
    entity specifier which still contains wildcarded SE.  This behaviour 
    prevented Alarms FM and Notification FM from generating clear event and 
    changing Icon's colors. The code changes have been made to both 
    Alarms FM and Notification PM to handle this situation.

    The fixed codes have been tested and placed in the baselevel X1.3.6, and
    will be included in the Field Test Update.

    William