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NTP time problem

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Operating Systems AIX NTP time problem
# 1  
Old 12-04-2013
Wrench NTP time problem
I got an ntp time problem on AIX server.

os version is AIX7.1
OS LEVEL 7.1.0.0

i got below output,when i run the below command
Code:
bash-3.2# ntpdate -dv XXXXXXXXXXXXXXXXXXXXXXXX
 4 Dec 12:50:49 ntpdate[34209840]: 3.4y
transmit(xxxxxxxxx)
receive(xxxxxxxxx)
transmit(xxxxxxxx)
receive(xxxxxxxxx)
transmit(xxxxxxx)
receive(xxxxxxxx)
transmit(xxxxxxx)
receive(xxxxxxxx)
transmit(xxxxxxxx)
server xxxxxxxxxxxx, port 123
stratum 5, precision -6, leap 00, trust 000
refid [xxxxxxxxxxx], delay 0.04141, dispersion 0.00021
transmitted 4, in filter 4
reference time:      d649a1e9.ff99a705  Wed, Dec  4 2013 12:43:21.998
originate timestamp: d649a3aa.088f6994  Wed, Dec  4 2013 12:50:50.033
transmit timestamp:  d649a3aa.0c5de000  Wed, Dec  4 2013 12:50:50.048
filter delay:  0.04152  0.04141  0.04141  0.04141
               0.00000  0.00000  0.00000  0.00000
filter offset: -0.01428 -0.01454 -0.01475 -0.01495
               0.000000 0.000000 0.000000 0.000000
delay 0.04141, dispersion 0.00021
offset -0.014544

 4 Dec 12:50:50 ntpdate[34209840]: adjust time server xxxxxxxxxxx offset -0.014544

please can some one help me on this sync time problem with peers
Last edited by bartus11; 12-04-2013 at 09:44 AM.. Reason: fixed code tags
# 2  
Old 12-04-2013
What you think is wrong in this?

You might see some milliseconds delay.

Try the command couple of times.
# 3  
Old 12-04-2013
Code:
 Nagios monitoring tool alerting as below.may be its not syc

Service: NTP Time
State: OK -> CRITICAL (PROBLEM)
Command: check_mk-ntp.time
Output: CRIT - found 2 peers, but none is suitable
Perfdata:

# 4  
Old 12-04-2013
Code:
ntpq -np

?
# 5  
Old 12-04-2013
Code:
bash-3.2# ntpq -np
     remote           refid      st t when poll reach   delay   offset    disp
==============================================================================
*xx.xxx.xx.xxx   xx.xxx.xx.xx     5 u  124  128  377     1.01   -5.592    3.80
+xx.xxx.xx.xxx   xx.xxx.xx.xx     5 u   33  128  377     3.52    7.586    3.86
bash-3.2#

# 6  
Old 12-04-2013
Two peers, both work.
Something must be wrong with your Nagios check!
# 7  
Old 12-04-2013
It is usually not a good idea to use two remote ntp servers. If there is a difference, who should the host believe?

Quote:
With two, it is impossible to tell which one is better, because you don't have any other references to compare them with.
This is actually the worst possible configuration -- you'd be better off using just one upstream time server and letting the clocks run free if that upstream were to die or become unreachable.
ntp: 5.3.3. Upstream Time Server Quantity.
Last edited by Scrutinizer; 12-04-2013 at 04:29 PM..
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