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Conference noted::hackers_v1

Title:-={ H A C K E R S }=-
Notice:Write locked - see NOTED::HACKERS
Moderator:DIEHRD::MORRIS
Created:Thu Feb 20 1986
Last Modified:Mon Aug 03 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:680
Total number of notes:5456

352.0. "Re-read a global backing store on the fly" by YALI::LASTOVICA (Norm Lastovica) Wed Nov 05 1986 23:23

    Assume that I've got a read only global section that is paged from
    the backing store.  I'd like to modify the backing store file and
    then force the memory copy to be updated.
    
    One thought is to modify all of the GTE's (global page table entries)
    to indicated that the page is not in memory.  Will I then have to
    updated the PFN's and return all the existing memory to pool?
    
    Are there any clean ways to do this?  The reason that I ask is because
    I want all the nodes in the cluster to read from the backing store
    and then update the file and force all the nodes to re-read the
    file.
    
    Any hitches?
T.RTitleUserPersonal
Name		DateLines
352.1See 297.*NOVA::NELSONJENelsonThu Nov 06 1986 13:585
    Yuck.  Sounds like you want to coordinate access to a global section
    in a cluster.  Try reading note 297, especially 297.3, and see if
    that helps.
    
    				JENelson