"Louis Windsor" <[EMAIL PROTECTED]> wrote on 08/06/2005 04:12:35 AM:
> I do the same but every time you login. The context of this is a bit blurred due to over-quoting, so I just want to make sure I understood correctly. Does "the same" mean going through all file references in an account and creating an entry in an i-node table for each? And does "you" mean every user? If so, you may want to reconsider this strategy. If you have five people logging on simultaneously, each of them is buzzing through the VOC, opening each file referenced therein, resolving the device and i-node, then constructing and writing a record in a reference table. Now, let's say you have dozens or hundreds of users logging on simultaneously - say, at the start of business in the morning. The overhead of all of the I/O (including many expensive OPEN operations) and contention for the lock table will be overwhelming. Not to mention the delay the user encounters before being able to start working. Maybe you could check a time stamp somewhere and bypass the procedure if the table has been rebuilt in the last, let's say, 10 minutes. That will still give you fairly current information, assuming somebody has logged in recently. However, if you don't have people logging in constantly throughout the day, the table could get rather stale at times. I'd be more inclined to have something that is scheduled on a regular basis. Or, since you apparently have a wrapper around LIST.READU, maybe have that wrapper check a time stamp to see how old the i-node look-up table is. If it's not very fresh, ask whether to rebuild it right before doing the native LIST.READU command. If, on the other hand, I misunderstood what you're doing, then please ignore the two previous paragraphs. ;-) Tim Snyder Consulting I/T Specialist , U2 Professional Services North American Lab Services DB2 Information Management, IBM Software Group 717-545-6403 [EMAIL PROTECTED] ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
