[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

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

420.0. "DNS - MCC communication?" by OSLACT::BJORN (Once again) Fri Oct 19 1990 07:04

    I've run into a problem which I think has to do with MCC <=> DNS.
    
    My domain containing other domains and node4's and bridges, suddenly
    showed up on the iconic map with no icons, only the lines between them.
    
    I went into MCC to check whether the members of this domain was there,
    and they weren't. 
    
    I went into DNS$CONTROL to check whether the DNS$MEMBERS attribute of 
    this domain would tell me if they were gone.The members were all there. 
    
    Before this I tried to register the members again, and during the 
    registration I got the error message saying NONSRESOURCES, insufficient 
    DNS resources. I couldn't find out what this meant, so I did a DNS>
    REBUILD CLEARINGHOUSE NWOMCC_CH. I'm not sure what this does either,
    but if there were any mismatch in the links, perhaps this could solve
    it. This was done after rebooting. 
    
    I then deleted all known domains and registered them again (from
    command procedure!) and know they appear on the map again, and in the
    member list of the domain.
    
    Has anyone seen this problem, and if so, what did they do, and why did
    this happen?
    
    This is the second time it happens. I suspect DNS server to be the
    guilty part here. I'm very novice on both DECMCC and DNS, but I'm
    learning a lot!!
    
    Bj�rn Olav Haugom
    
T.RTitleUserPersonal
Name
DateLines
420.1I have the problem as wellDSTEG1::HUGHESFri Oct 19 1990 12:1114
    I've been having problems with DNS running out of resources. If you
    keep on getting events or messages about insufficient resources,
    stopping the server and client then restarting them clears up the
    problem until the client runs out of resources again. When you restart
    DNS, make sure all DNS processes are gone first. I've tried
    waiting seconds between mcc commands and the problem still pops up but
    it takes longer usually. I'm currently modifying the process quotas for
    the dns processes and I'm running a little longer before I get caught
    up in the insufficent resource problem.
    
    I'll post the changes I made and my progress later.
    
    Linda
     
420.2DNS problemsCLAUDI::PETERSFri Oct 19 1990 12:163
I hope that these DNS problems are being cross posted in the DNS notes
conference on TOOK.   The DNS group needs to become aware of these
problems.  /Claudia
420.3exTOOK::JESURAJMon Oct 22 1990 14:4313
    ref .0
    
    Could you give some more information about the context of the problem?
    
    * How many members were there in the domain?
    * Were there frequent creates and deletes of the members?
    
    
    Thx. 
    
    Jay
    
    
420.4No news from DNS folksDSTEG2::HUGHESFri Nov 02 1990 13:0611
    re: .2
    
    I posted a note in the DNS notesfile on Took 2 weeks ago and nobody has
    responded to my request for information. The DNS folks know about the
    resource problem but I guess they don't have any time to help.
    
    It's unfortunate, I consider this to be a serious problem.
    
    Linda
    
    
420.5domain overflowSMAUG::SMARTINMon Nov 05 1990 13:2014
    Jay has the right idea.  The .0 note mentioned that the problem occured 
    on a domain.  If the members of the domain reached a threshold of about
    40-70 (depending on access control and other attributes on the domain,
    and the size of the names of the members) then the record in RMS may
    have overflowed for the domain.  DNS V1 has a record limit of about
    16,000 bytes.  DNS V2 (for VMS, V1 for Ultrix) will not have this
    limitation.
    
    Some of the problems mentioned in the replies, that are fixed by
    re-starting the clerk may be due to something else.  Not enough info
    for me to guess.
    
    Sally
    (ex-dns developer)
420.6p.s.SMAUG::SMARTINMon Nov 05 1990 14:217
    I notice that I didn't actually say, that the resource error is returned
    by DNS when a modification is requested on an entry (group, object, or
    directory) that would cause it to overflow the record size.
    Thus you can read the entry, but cannot modify it.  Usually the
    entire object can be deleted, as that takes no extra space.
    
    Sally
420.7multi-processors require DNS patchDSTEG2::HUGHESThu Nov 08 1990 10:2716
    My DNS problem when the cash locks up and runs out of resources
    is solved, Thanks to the DNS folks. It turns out that this system
    did in fact have a second CPU. I was told that it didn't and
    monitor showed 100% CPU not 200%. The way to tell if your system
    has a secondary CPU is to use the SHOW CPU command.
    
    There is a known DNS problem with multi-processors, a patch is available.
    
    I also upped several UAF quotas for the DNS$SERVER account as follows:
    	fillm   = 100
    	biolm   = 10000
    	diolm   = 200
    	astlm   = 1000
    	tqelm   = 1000
    	enqlm   = 2000
    	pgflquo = 30000