Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Brian Utterback
Hmm. It's interesting that the value is almost exactly 1/10th the value in the thread. But it doesn't seem to be that a single rogue return from gettimeofday could have caused this. The system clock does end up 434 seconds behind, relative to the server, so it doesn't seem like a transient

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Frank Elsner
Steve Kostecke wrote: On 2009-09-14, Frank Elsner els...@tubit.tu-berlin.de wrote: The relevant lines read: server times.tubit.tu-berlin.de minpoll 6 maxpoll 8 server ntps1-0.cs.tu-berlin.deminpoll 6 maxpoll 8 server ntps1-1.cs.tu-berlin.deminpoll 6 maxpoll 8 server

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Steve Kostecke
On 2009-09-14, Frank Elsner els...@tubit.tu-berlin.de wrote: The relevant lines read: server times.tubit.tu-berlin.de minpoll 6 maxpoll 8 server ntps1-0.cs.tu-berlin.deminpoll 6 maxpoll 8 server ntps1-1.cs.tu-berlin.deminpoll 6 maxpoll 8 server zeit.fu-berlin.de

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread David Lord
Frank Elsner wrote: Steve Kostecke wrote: On 2009-09-14, Frank Elsner els...@tubit.tu-berlin.de wrote: The relevant lines read: server times.tubit.tu-berlin.de minpoll 6 maxpoll 8 server ntps1-0.cs.tu-berlin.deminpoll 6 maxpoll 8 server ntps1-1.cs.tu-berlin.deminpoll

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Unruh
Steve Kostecke koste...@ntp.org writes: On 2009-09-14, Frank Elsner els...@tubit.tu-berlin.de wrote: The relevant lines read: server times.tubit.tu-berlin.de minpoll 6 maxpoll 8 server ntps1-0.cs.tu-berlin.deminpoll 6 maxpoll 8 server ntps1-1.cs.tu-berlin.deminpoll 6

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Steve Kostecke
On 2009-09-14, David Lord sn...@lordynet.org wrote: Frank Elsner wrote: OT you also have rather a lot of sources specified and if just for a single box it seems a bit excessive and could be trimmed to four or five (I'd also guess some of those eight get same refid). Red Herring. I've just

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Steve Kostecke
On 2009-09-14, Unruh unruh-s...@physics.ubc.ca wrote: Steve Kostecke koste...@ntp.org writes: Why are you changing the minpoll / maxpoll ? Please try again without the minpoll / maxpoll modifiers. That has absolutely nothing to do with his problem. In fact having a smaller maxpoll saved him

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Steve Kostecke
On 2009-09-14, David Lord sn...@lordynet.org wrote: Steve Kostecke wrote: On 2009-09-14, David Lord sn...@lordynet.org wrote: Frank Elsner wrote: OT you also have rather a lot of sources specified and if just for a single box it seems a bit excessive and could be trimmed to four or five

[ntp:questions] question regarding NTP configuration for clusters, and cluster time stability

2009-09-14 Thread rotor...@yahoo.com
I have a question that seems somewhat similiar to one that was just asked, but there are a couple of differences, so I figured I'd ask mine as well. Apologies for the long post, but I'm trying to skip the more info please phase. :-) I have a product that is comprised of a cluster of Linux nodes,

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread E-Mail Sent to this address will be added to the BlackLists
David Lord wrote: Can you then suggest how it's at all possible for ntpd to be of any use on a mobile connection with such high latency? Interplanetary Timekeeping ? http://www.cis.udel.edu/~mills/ipin.html -- E-Mail Sent to this address blackl...@anitech-systems.com will be added to

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Richard B. Gilbert
David Lord wrote: Steve Kostecke wrote: On 2009-09-14, David Lord sn...@lordynet.org wrote: Frank Elsner wrote: OT you also have rather a lot of sources specified and if just for a single box it seems a bit excessive and could be trimmed to four or five (I'd also guess some of those eight

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread Unruh
E-Mail Sent to this address will be added to the BlackLists n...@blacklist.anitech-systems.invalid writes: David Lord wrote: Can you then suggest how it's at all possible for ntpd to be of any use on a mobile connection with such high latency? Interplanetary Timekeeping ?

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread David Lord
Steve Kostecke wrote: On 2009-09-14, David Lord sn...@lordynet.org wrote: Steve Kostecke wrote: On 2009-09-14, David Lord sn...@lordynet.org wrote: Frank Elsner wrote: OT you also have rather a lot of sources specified and if just for a single box it seems a bit excessive and could be

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread David Lord
Unruh wrote: Steve Kostecke koste...@ntp.org writes: On 2009-09-14, David Lord sn...@lordynet.org wrote: Steve Kostecke wrote: On 2009-09-14, David Lord sn...@lordynet.org wrote: Frank Elsner wrote: OT you also have rather a lot of sources specified and if just for a single box it

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread John Hasler
David writes: Chrony gave a quicker convergence but doesn't seem to have equivalent to 'ntpd -q' and I'm converging from many seconds and even with the chrony equivalent of burst it takes too long compared to using 'ntpd -q' to set time reasonably close. Use the chronyc makestep command to

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread David Lord
John Hasler wrote: David writes: Chrony gave a quicker convergence but doesn't seem to have equivalent to 'ntpd -q' and I'm converging from many seconds and even with the chrony equivalent of burst it takes too long compared to using 'ntpd -q' to set time reasonably close. Use the chronyc

Re: [ntp:questions] ntpd: time reset problem

2009-09-14 Thread E-Mail Sent to this address will be added to the BlackLists
Unruh wrote: BlackLists writes: David Lord wrote: Can you then suggest how it's at all possible for ntpd to be of any use on a mobile connection with such high latency? Interplanetary Timekeeping ? http://www.cis.udel.edu/~mills/ipin.html IF the latency is known to be symmetric ( which

Re: [ntp:questions] question regarding NTP configuration for clusters, and cluster time stability

2009-09-14 Thread rotor...@yahoo.com
On Sep 14, 5:42 pm, Unruh unruh-s...@physics.ubc.ca wrote: rotor...@yahoo.com rotord...@gmail.com writes: a) Get one or more Garmin 18xLVC gps receivers and set them up on a few of your nodes. their time will then be within a few usec of UTC. Use those nodes as the servers to the rest of your