02-06-2007
Quote:
Originally Posted by Tornado
In the ntp.conf.cluster you setup your nodes as peers to sync off each other using the private interconnects and set the ntp server to your time server on your network.
Note of caution:
This depends on whether you are using internal syncing in the cluster or not. To keep nodes in sync with each other without using an external clock, or in addition to an external this is the way to configure. NB. All nodes should be clients of the same external server(s), you should not sync one node externally and others internally.
If using only an external ntp source all node still are configured as individual ntp clients, and would be configured towards the same ntp server(s), so ntp.conf can be used in this case. I strongly reccommend againt this, as internal custer time is much more important than "real" time, it is better to sync only internally than only externally.
Also it should be noted that you should not use two ntp servers. If using more than 1 server you should not use two, use a minimum of 3
http://www.ntp.org/ntpfaq/NTP-a-faq.htm
VCS does not provide this facility, and either an external ntp server is used.
Last edited by reborg; 02-06-2007 at 08:08 PM..
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LEARN ABOUT OPENDARWIN
ntp-wait
ntp-wait(1) User Commands ntp-wait(1)
NAME
ntp-wait - Wait for ntpd to stabilize the system clock
SYNOPSIS
ntp-wait [-flags] [-flag [value]] [--option-name[[=| ]value]]
All arguments must be options.
DESCRIPTION
ntp-wait will send at most num-tries queries to ntpd(8), sleeping for secs-between-tries after each status return that says ntpd(8) has not
yet produced a synchronized and stable system clock.
ntp-wait will do this quietly, unless the -v flag is provided. This can be useful at boot time, to delay the boot sequence until after
ntpd -g has set the time.
OPTIONS
-n number, --tries=number
Number of times to check ntpd. This option takes an integer number as its argument. The default number for this option is:
100
The maximum number of times we will check ntpd to see if
it has been able to synchronize and stabilize the system clock.
-s secs-between-tries, --sleep=secs-between-tries
How long to sleep between tries. This option takes an integer number as its argument. The default secs-between-tries for this
option is:
6
We will sleep for secs-between-tries after each query
of ntpd that returns "the time is not yet stable".
-v, --verbose
Be verbose.
By default, ntp-wait is silent.
With this option, ntp-wait will provide status information.
-?, --help
Display usage information and exit.
-!, --more-help
Pass the extended usage information through a pager.
-v [{v|c|n --version [{v|c|n}]}]
Output version of program and exit. The default mode is `v', a simple version. The `c' mode will print copyright information and
`n' will print the full copyright notice.
EXIT STATUS
One of the following exit values will be returned:
0 (EXIT_SUCCESS)
Successful program execution.
1 (EXIT_FAILURE)
The operation failed or the command syntax was not valid.
70 (EX_SOFTWARE)
libopts had an internal operational error. Please report it to autogen-users@lists.sourceforge.net. Thank you.
AUTHORS
Harlan Stenn
NOTES
This document corresponds to version 4.2.8p13 of NTP.
This manual page was AutoGen-erated from the ntp-wait option definitions.
ntp (4.2.8p13) 20 Feb 2019 ntp-wait(1)