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Conference orarep::nomahs::dbms

Title:VAX DBMS
Notice:THIS NOTESFILE IS NOT A FORMAL SUPPORT CHANNEL
Moderator:SCARY::CHARLAND
Created:Thu Feb 20 1986
Last Modified:Tue Jun 03 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2642
Total number of notes:11044

2627.0. "Incremental Clock Adjustments?" by M5::BLITTIN () Wed May 07 1997 15:51

    
    DBMS 6.1
    
    UCX has a Network Time Process(?) that can be used to automatically
    adjust system clocks by up to 4 seconds.  This is used to keep the
    cluster members clocks in sync.  Will this 4 second bump create a
    problem for DBMS?
    
    Thank You...
T.RTitleUserPersonal
Name		DateLines
2627.1Shouldn't be a problem...BOUVS::OAKEYI'll take Clueless for $500, AlexWed May 07 1997 16:3611
>>                       <<< Note 2627.0 by M5::BLITTIN >>>
>>                      -< Incremental Clock Adjustments? >-

>>    UCX has a Network Time Process(?) that can be used to automatically
>>    adjust system clocks by up to 4 seconds.  This is used to keep the
>>    cluster members clocks in sync.  Will this 4 second bump create a
>>    problem for DBMS?
    
Shouldn't.  We use TSNs for almost all sychronization cases such as 
recovery...
2627.2ukvms3.uk.oracle.com::PJACKSONOracle UK Rdb SupportThu May 08 1997 05:245
    DBMS copes with times changes for summer time with no problem so it
    should also cope with this. However, some applications don't like time
    appearing to go backwards.
    
    Peter