Skip to main content

ntp - all my ntpd servers marked falsetick, why?

I have a set of four ntpd servers that sync time from the
same stratum 1 server.
But on some clients they all are marked falsetick,
why?



 remote refid st t when poll
reach delay offset
jitter
==============================================================================
x10.201.24.36
209.51.161.238 2 u 12 64 377 0.177 464.794 1.136
x10.201.13.99 209.51.161.238
2 u 37 64 377 0.148 463.427 0.541
x10.201.24.37 209.51.161.238 2 u 817 1024
377 0.174 462.235 0.143

x10.201.12.198 209.51.161.238 2 u 853 1024
377 0.158 462.151 302.364
*127.127.1.0 .LOCL. 10 l 48 64 377 0.000 0.000
0.004


They recover
from time to time, but why does it happen at all?
Also another question is why
do I have such a big offset?
I tried to leave only 1 ntp server, but offset
doesn't go down anyway.



 remote
refid st t when poll reach delay offset
jitter
==============================================================================

*10.201.12.198
209.51.161.238 2 u 64 64 7 0.108 470.963 0.200
127.127.1.0 .LOCL. 10 l 136 64
14 0.000 0.000 0.001


I
am runing CentOS 7 and all servers are in the same
network.



ntp.conf:



driftfile
/var/lib/ntp/drift
restrict default kod nomodify notrap nopeer
noquery

restrict -6 default kod limited nomodify notrap nopeer
noquery
restrict 127.0.0.1
restrict
lga-ntp03.pulse.prod
server lga-ntp03.pulse.prod iburst
burst
restrict lga-ntp06.pulse.prod
server lga-ntp06.pulse.prod
iburst burst
restrict lga-ntp05.pulse.prod
server
lga-ntp05.pulse.prod iburst burst
restrict
lga-ntp01.pulse.prod
server lga-ntp01.pulse.prod iburst
burst

includefile /etc/ntp/crypto/pw
keys
/etc/ntp/keys


Update
#1

After removing LOCL (Thanks to @John Mahowald), I am still
getting my servers marked as
falsetick:



 remote refid st t when
poll reach delay offset
jitter
==============================================================================
x10.201.24.36
209.51.161.238 2 u 886 1024 7 0.177 -330.92 0.172

*10.201.13.99
209.51.161.238 2 u 773 1024 17 0.203 -152.68 0.090
x10.201.24.37
209.51.161.238 2 u 750 1024 17 0.167 94.101 0.468
x10.201.12.198
209.51.161.238 2 u 409 1024 17 0.129 51.831
0.176

Comments

Popular posts from this blog

linux - iDRAC6 Virtual Media native library cannot be loaded

When attempting to mount Virtual Media on a iDRAC6 IP KVM session I get the following error: I'm using Ubuntu 9.04 and: $ javaws -version Java(TM) Web Start 1.6.0_16 $ uname -a Linux aud22419-linux 2.6.28-15-generic #51-Ubuntu SMP Mon Aug 31 13:39:06 UTC 2009 x86_64 GNU/Linux $ firefox -version Mozilla Firefox 3.0.14, Copyright (c) 1998 - 2009 mozilla.org On Windows + IE it (unsurprisingly) works. I've just gotten off the phone with the Dell tech support and I was told it is known to work on Linux + Firefox, albeit Ubuntu is not supported (by Dell, that is). Has anyone out there managed to mount virtual media in the same scenario?

ubuntu - Monitoring CPU, Mem, disk, on a single server

I've been looking for a simple starter solution for monitoring my [currently] single server hosted solution. Other than Nagios and similar, are there other good (simple) solutions people are using? Answer Everything depends on what you want. For example Munin is very simple, you can install and configure it in less then 10 minutes (on one server), it can sends alarms, make graphs from monitoring cpu, mem. apache connections, eaccellerator, disk io and many many more (it has many plugins). But if you are planning in future get some more machines, munin may not be enough. For example in munin you cant monitor state of individual processes, can't monitor changes in files (for security purpose). So if you wanna only see what is the utilization of basics parameters on your server and don't plan to buy some more servers Munin is what you are looking for, but if you wanna be alarmed when some of your service is down, take more control on what is happeninig on...

hp proliant - Smart Array P822 with HBA Mode?

We get an HP DL360 G8 with an Smart Array P822 controller. On that controller will come a HP StorageWorks D2700 . Does anybody know, that it is possible to run the Smart Array P822 in HBA mode? I found only information about the P410i, who can run HBA. If this is not supported, what you think about the LSI 9207-8e controller? Will this fit good in that setup? The Hardware we get is used but all original from HP. The StorageWorks has 25 x 900 GB SAS 10K disks. Because the disks are not new I would like to use only 22 for raid6, and the rest for spare (I need to see if the disk count is optimal or not for zfs). It would be nice if I'm not stick to SAS in future. As OS I would like to install debian stretch with zfs 0.71 as file system and software raid. I have see that hp has an page for debian to. I would like to use hba mode because it is recommend, that zfs know at most as possible about the disk, and I'm independent from the raid controller. For us zfs have many benefits, ...