If the file has never been closed, just do a quick LIST on the file. If FILE.USAGE is on then when you end the list, you'll at LEAST get some read hits on it.
Bob Woodward Programmer/Analyst Harbor Wholesale Grocery [EMAIL PROTECTED] > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:owner-u2- > [EMAIL PROTECTED] On Behalf Of Glenn Herbert > Sent: Thursday, November 18, 2004 2:04 PM > To: [EMAIL PROTECTED] > Subject: Re: [U2] RE: [UV] Monitoring file changes > > Yeah. I said that in a previous email. The question was simply is there a > way to determine if statistics are enabled and, without having to delve > into the file header, listing out the statistics using FILE.USAGE is the > only way to tell. Of course, you are > correct that IF statistics collection HAS been enabled, yet the file has > NEVER been closed, thus no header updates have occurred..... > > Ok. Tried this. Statistics collection can definitely be determined using > the FILE.USAGE command. If they are enabled, the listing will also > include > a line such as: > > Statistics last reset <timestamp> > > (Statistics last reset Thu Nov 18 17:06:33 2004) > > IF this line does NOT appear, statistics collection is definitely OFF. > > > > At 04:22 PM 11/18/2004, you wrote: > >I don't think that's correct. I did some tests on this several years ago. > >If memory serves, when file usage is ON, counts are held in memory. They > >don't actually get written to the file header on disk until the file is > closed. > > > >Or am I mis-remembering again? > > > >-- > > > >Regards, > > > >Clif > > > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >W. Clifton Oliver, CCP > >CLIFTON OLIVER & ASSOCIATES > >Tel: +1 619 460 5678 Web: www.oliver.com > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > > > >Glenn Herbert wrote: > > > >>I believe if you run FILE.USAGE <filename> and all values are zero, then > >>statistic collection is OFF. You enable it using FILE.USAGE.CLEAR; > >>disable it using FILE.USAGE.OFF. > >>At 02:54 PM 11/18/2004, you wrote: > >> > >>>Is there a way to tell if FILE.USAGE has been set to collect > information? > >>>-Dianne > >------- > >u2-users mailing list > >[EMAIL PROTECTED] > >To unsubscribe please visit http://listserver.u2ug.org/ > ------- > u2-users mailing list > [EMAIL PROTECTED] > To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
