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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

6249.0. "MCC-E-RECEIVEERROR" by COMICS::PRICEC (I had a life, then I joined the CSC) Tue Mar 07 1995 19:35

    
    
    
    I have a customer running a large MCC environment, It has been running
    reliably , for quite some time ,but recently notification services have
    been aborting with "Polycentre message"  
    
    notify request 1 for domain .domain.drk_manage_2 encountered an error
    
    %MCC-E-RECEIVEEROR, error trying to receive a packet.
    
    
    
    this is followed by the field in the notificaction servers window 
    changing it's request state to 
    
    Disabled with error.
    
    
    an addition to this , another Polycentre message is displayed...
    
    
    Unexpected condition returned to Notification FM.
    
    MCC Routine Error		%MCC-E-MMABORT, Target management module
    thread has aborted.
    
    
    
    
    
    I guess the whole sequence has been caused by the initial packet not
    being received, but as this is now occuring more frequently, it seems
    to be a consistent state of affairs.
    
    
    
    I'm happy to do some research, but I can't find any pointers yet as to
    what all the MCC error messages mean, or what kind of "packet" the MCC
    system was trying to receive . 
    
    Any pointers gratefully received.
    
    
    
    Conrad Price
    
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6249.1Oh, the pain ...SPANKY::WALSHWed Mar 08 1995 20:4017
    Hello,
    
    I have had very similar experience with MCC-E-RECEIVEerror error
    message.  This caused a few months of pain on the MCI/NASDAQ project
    with MCC on Ultrix.  Also the Notification FM would abort i.e. Target
    management module thread has aborted.  Caused even more pain, sleepless
    nights ....  However, these problems are very difficult to trap. 
    Fortunately, due to very hard work from MCC engineering in Valbonne,
    France, the problems were corrected on Ultrix with MCC V1.4.  Great job
    engineers!
    
    So the question is were these problems addressed on VMS with MCC V1.4?
    
    Regards,
    
    Mike Walsh
    DTN 227-3894
6249.2Rather an AM issueTAEC::PLENARDWed Mar 08 1995 21:1010
	Conrad

	From the few things reported, it seems that the Access Module
	supporting the entities from which you were expecting notifications
	crashed... or reported something nasty.

	So, you should rather investigate what happened to the AM.

	Rgds
	Jean-Louis (one of this team mentionned in re -.1)
6249.3Hmm, this could be trickyCOMICS::PRICECI had a life, then I joined the CSCThu Mar 09 1995 13:2614
    Aaah,
    
    	here lies a bit of the problem. The customer has been advised to
    upgrade to MCC 1.4, however they store all their MCC attributes in DNS,
    and since upgrading their MCC test environment to MCC 1.4 , DNU_OSI
    5.1A , their DNS server keeps crashing. The DNS issue is being pursued
    by DNS engineering, but this stops them from going to MCC 1.4 .
    
    I shall see what I can extract from the AM for the time being.
    
    Thanks for the replies.
    
    
    Conrad
6249.4Logging Flags ?COMICS::PRICECI had a life, then I joined the CSCThu Mar 09 1995 16:3423
    
    
    
    
    
    I've now done some more research, and found that the customer is using
    the data collector AM , with several collectors , one in each domain,
    as different users have different default domains. The events are sent
    from remote collectors , based on remote alarm rules.
    
    I found a reference to logging flags for the mcc_evc_sink process, to
    extract more info from the collector log file. My VMS collector log
    file already contains some information , but the customer's Ultrix log
    file appears to be pretty thin on information even though events are
    being received, via UDP (for 2 hours, after which the notification stops).
    
    My question is  , what flags can I set to enable fulll logging of the
    daemon, to give me some clues as to the cause.
    
    
    
    
    Regards, Conrad
6249.5I nead some help COMICS::PRICECI had a life, then I joined the CSCFri Mar 10 1995 21:5434
    
    
    
    
    The customer has managed to keep the Collection AM running for a longer
    period of time if they start the mcc_evc_sink interactively after the
    machine has been rebooted. But if they allow the mcc_evc_sink to start
    at system startup time , as per note 4127.8 , then the notifications
    are disabled with error within 2 hours.
    
    
    
    They are using remote collectors to collate information , then pass the
    events to the local collecter using UDP .
    
    They have several domains, each with a collector , each is opened as
    the default domain by a different userid.  One of the users
    receives the popup window indicating that the MCC-E-MMABORT , taregt
    manageemnt module thread has aborted , but the notify requests window
    shows the notification to remain enabled.
    
    The other user receives the popup window MCC-E-RECEIVEERROR , error
    trying to receive packet , and the notify requests window shows the
    notification to be disabled with error.
    
    
    I'm unable to reproduce this at the CSC, as our MCC test system is
    already broken with another MCC problem for this customer. No info on
    flags for the log file has been forthcoming, so I've IPMT the call to
    try to make some headway.
    
    
    Conrad