NTP Blues

[RAC_1]

I am trying to set ntp on one client.

I have set stratum 11 on one server.

On one of the client I am trying to set ntp. But everytime it gives error as
"time error xxxxx.xxx is way too large (set clock manually)

If I set clock manually to that of stratum server(Though there will always be differnce of some miliseconds) the NTP runs for a while and again dies after giving above mentioned error. I do not want to run ntpdate as it forwards the clock. Currently the offset is 1841.xxxx sec.

How do make this server run NTP without having serious repcurssions?

Thanks in advance

[Arockia Jegan]

Can you post the contents of ntp.conf file? Also please post the output of "ntpq -p" command.

[Mike Hassell]

Anil,

This could be attributed to a number of things, such as a dead clock battery on the machine in question, or some severe network latency. I would start by posting the results of 'ntpq -p', your ntp.conf file and any xntpd errors in your syslog.

Take a chance to review your configuration with this documentation on NTP from HP:

http://docs.hp.com/hpux/onlinedocs/B2355-90147/B2355-90147.html

Also be sure you have the latest patches installed for NTP:

PHNE_23717 (10.x)
PHNE_23697 (11.0)

How old is the machine that is having the problem with keeping acurate time?

Hope that helps.

-Mike

P.S. - Don't forget to assign points to your responses.

[RAC_1]

ntp.conf

server 172.17.113.3 # local clock
fudge 172.17.113.3 stratum 10

NTP log

26 Jun 00:35:57 xntpd[9406]: logging to file /tmp/ntp.log
26 Jun 00:35:57 xntpd[9406]: tickadj = 625, tick = 10000, tvu_maxslew = 61875
26 Jun 00:35:57 xntpd[9406]: precision = 6 usec
26 Jun 00:40:47 xntpd[9406]: synchronized to 172.17.113.3, stratum=11
26 Jun 00:40:47 xntpd[9406]: time error -883610986.145565 is way too large (set clock manually)

ntpq -p dbnode
remote refid st t when poll reach delay offset disp
==============================================================================
*LOCAL(1) LOCAL(1) 10 l - 64 377 0.00 0.000 10.01

ntpdate -d dbnode --
transmit(172.17.113.3)
receive(172.17.113.3)
transmit(172.17.113.3)
receive(172.17.113.3)
transmit(172.17.113.3)
receive(172.17.113.3)
transmit(172.17.113.3)
receive(172.17.113.3)
transmit(172.17.113.3)
server 172.17.113.3, port 123
stratum 11, precision -17, leap 00, trust 000
refid [127.127.1.1], delay 0.02580, dispersion 0.00000
transmitted 4, in filter 4
reference time: c0c5d005.cf65e000 Thu, Jun 27 2002 23:25:17.810
originate timestamp: c0c5d03c.7f1f5000 Thu, Jun 27 2002 23:26:12.496
transmit timestamp: c0c5c90a.17546000 Thu, Jun 27 2002 22:55:30.091
filter delay: 0.02600 0.02580 0.02580 0.02580
0.00000 0.00000 0.00000 0.00000
filter offset: 1842.405 1842.405 1842.405 1842.405
0.000000 0.000000 0.000000 0.000000
delay 0.02580, dispersion 0.00000
offset 1842.405320

27 Jun 22:55:30 ntpdate[18101]: step time server 172.17.113.3 offset 1842.405320 sec

Regards,