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From: Michael Stauber <[email protected]> To: BlueOnyx General Mailing List <[email protected]> Sent: Tue, 10 Jun 2014 21:37:04 -0500 Subject: [BlueOnyx:15529] Re: Problem with server clock intermittenly changing > Hi Chuck, > > > I've got a weird one. The clock on just one of our BX servers keeps changing. > > This morning at 08:45 - the clock set backwards 12 hours to 9June 21:03. Then > > less than two hours later - it sets back forward to the correct time. See cron > > log clips below. > > > > I'd previously turned off NTPd, since it wasn't keeping the time right and had > > set up a daily cron to set the clock. But the problem has remained - whether > > using NTPd or the cron. > > > > Does anyone have a idea what could be changing the clock on this server? > > Hmm. Could be that the timezone set in CODB disagrees with the TZ that > the server is currently using. In that case a cronjob (or CCED restart) > could push out the CODB stored timezone to the system. In which case > you'd see such a jump. > > Other than that: Updates of the "tzdata" RPM via YUM can also cause this > temporarily, until a CCED restart fixes it again. > > Other than that? No idea. If you can't use NTP, then a cronjob is indeed > the answer. > > Once upon a time I used to use a cronjob like this to sync the software- > and hardware-clock once a day: > > 5 23 * * * /usr/sbin/ntpdate -v time.fu-berlin.de > 6 23 * * * /sbin/clock -wu > > -- > With best regards > > Michael Stauber Thanks for the suggestions Michael. I'll try changing the timezone in the GUI two or three times, ending with the correct timezone. Maybe that will straighten out any CODB mis-match. I already have a cron that sets the time via ntpdate once a hour. But I wasn't pushing that down to the "hardware". Mainly because this one is a VM, and I've noticed timing issues whether NTPd was running or not. But I'll give that a try too, maybe it will help. Thanks again Michael. And I'll let you know if we have any further cases of time jumps in the logs. Chuck |
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