Ntp Frequency Error 501 Ppm Exceeds Tolerance 500 Ppm
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Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about frequency error exceeds tolerance 500 ppm hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask frequency error ppm exceeds tolerance 500 ppm solaris Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up frequency error wiki Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top ntpd frequency error -1732 PPM exceeds tolerance 500 PPM up vote 1 down vote favorite I'm ntp ppm getting this error on my PC: frequency error -1732 PPM exceeds tolerance 500 PPM Any ideas? windows ntpd share|improve this question asked Apr 12 '12 at 8:44 user626528 154127 add a comment| 2 Answers 2 active oldest votes up vote 6 down vote accepted This means that the difference between your local time and the server you're syncing with has exceed ntpd's limit. ntpd will only sync the local time if it is relatively close to the time server.
Ntp Drift Tolerance
This is why Red Hat (as an example) uses ntpdate the first time you start the ntpd service to set the local time to be in the right ball park. You should also make sure that the ntp servers you are syncing with are relatively close. You can do these steps manually if you want (e.g. you're not running Red Hat which includes the ntpdate step in it's restart script): # /etc/init.d/ntpd stop # ntpdate
regularly General support questions including new installations Post Reply Print view Search Advanced search 5 posts • Page 1 of 1 tmyoungjr Posts: 2 Joined:
Ntp Tolerance
2010/03/19 16:21:18 Location: Rochester, NY Clock Changes time regularly Quote Postby tmyoungjr /var/lib/ntp/drift » 2010/03/19 16:30:49 I have noticed my system time changes very often. Usually it's only by a minute or frequency error ppm exceeds tolerance 500 ppm linux two.If i'm watching date I see things like this : $ dateFri Mar 19 12:26:59 EDT 2010$ dateFri Mar 19 12:25:23 EDT 2010$ dateFri Mar 19 12:25:23 EDT 2010$ dateFri http://serverfault.com/questions/378784/ntpd-frequency-error-1732-ppm-exceeds-tolerance-500-ppm Mar 19 12:27:00 EDT 2010$ dateFri Mar 19 12:25:23 EDT 2010I am running ntpd and sync'ing up to a few of the pool.ntp.org poolsCode: Select all$ sudo ntpq -p
Password:
remote refid st t when poll reach delay offset jitter
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+nonce.prolixium 209.51.161.238 2 u - 64 377 52.968 -149102 11.478
+bindcat.fhsu.ed http://www.centos.org/forums/viewtopic.php?t=15361 132.163.4.102 2 u - 64 377 84.190 -149126 36.746
*mirror 204.9.54.119 2 u - 64 377 44.069 -149129 25.113
LOCAL(0) .LOCL. 10 l 37 64 377 0.000 0.000 0.001
[Moderator edit: Insert code tags to preserve formatting]This is Cent 5 with kernel : 2.6.18-164.11.1.el5PAE my log/messages shows : Mar 19 12:16:52 alpha ntpd[4682]: kernel time sync status 0040Mar 19 12:16:54 alpha ntpd[4682]: frequency initialized -18.382 PPM from /var/lib/ntp/driftMar 19 12:21:45 alpha ntpd[4682]: synchronized to LOCAL(0), stratum 10Mar 19 12:22:49 alpha ntpd[4682]: synchronized to 208.53.158.34, stratum 2Mar 19 12:27:05 alpha ntpd[4682]: frequency error -587 PPM exceeds tolerance 500 PPMMar 19 12:28:11 alpha ntpd[4682]: frequency error -1069 PPM exceeds tolerance 500 PPMNow those errors aren't consistent but they do show on occasion. I'm thinking my hardware clock is giving me issues and causing ntpd to have to keep changing the time.This is an AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ machine.Thoughts?Thanks Top pschaff Retired Moderator Posts: 18276 Joined: 2006/12/13 20:15:34 Location: Tidewater, Virginia, North America Co
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