topic Re: ntpd dead but subsys locked error in Operating System - Linux

ntpd dead but subsys locked error

Andrew Kaplan — Mon, 22 Nov 2004 16:18:07 GMT

Hi there --

I have several machines that are supposed to be running ntp on them but for some reason are unable to do so. When I run the /etc/init.d/ntpd status command, I get the following message:

I have not seen this before, and could use some help. All machines in question are running Red Hat 8.0. The ntp.conf files have been configured to have the servers sync with a particular time server.

Re: ntpd dead but subsys locked error

Andrew Kaplan — Mon, 22 Nov 2004 16:19:03 GMT

Sorry -- the error message is:

ntpd dead but subsys locked

Re: ntpd dead but subsys locked error

K.C. Chan — Mon, 22 Nov 2004 17:33:35 GMT

it just mean that for some reasons the nptd daemon dies before removing the lock file.

Check the logs file, there may be clues as to why it dies.

Re: ntpd dead but subsys locked error

Vitaly Karasik_1 — Tue, 23 Nov 2004 03:16:27 GMT

1) what is your ntp.conf file?
2) did you try "service ntpd restart"?

Re: ntpd dead but subsys locked error

Johannes Krackowizer_1 — Tue, 23 Nov 2004 03:59:21 GMT

hi andrew,

please post your ntp.conf

best regards,

johannes

Re: ntpd dead but subsys locked error

Andrew Kaplan — Tue, 23 Nov 2004 09:02:36 GMT

Thank-you all for your replies. I am posting the ntp.conf file per request.

Re: ntpd dead but subsys locked error

Vitaly Karasik_1 — Tue, 23 Nov 2004 09:12:52 GMT

I've started ntpd on my RHEL3.0 box with your config file and ntpd works.

- did you try to check ntpd status by "ps -ef|grep ntp" ?

- upgrade with last RHL8.0 paches may be useful

Re: ntpd dead but subsys locked error

Andrew Kaplan — Tue, 23 Nov 2004 10:29:37 GMT

Hi there --

I ran the service ntpd restart command, and it generated the same error message that was mentioned in a previous e-mail. I also ran the ps -ef |grep ntp command, and the output was the following:

nptd -U ntp

Regarding the service patches for Red Hat 8.0, can you specify which one(s) would be of use here? Thanks.

Re: ntpd dead but subsys locked error

Vitaly Karasik_1 — Tue, 23 Nov 2004 10:38:17 GMT

1) if ps shows ntpd running - ntp works. probably it's just some bug in ntpd script.
try run " ntpq -c pe" in order to check ntpd status.
see for more http://www.fifi.org/doc/ntp-doc/html/debug.htm NTP Debugging Techniques

2) I sugest to install the latest available for RHL8.0 "ntp" package

Re: ntpd dead but subsys locked error

Ermin Borovac — Tue, 23 Nov 2004 19:03:20 GMT

It looks like your system time is too far off from network time so ntpd cannot synchronise your system time with network time.

You can try getting /etc/init.d/ntpd to run ntpdate to update your system time. To do this put IP addresses of your NTP servers in /etc/ntp/step-tickers file.

# echo "" > /etc/ntp/step-tickers
# /etc/init.d/ntpd start

You should also check that your NTP servers are functional with 'ntpq -p'.

# /usr/sbin/ntpq -p

To check if your local system time has been synced run 'ntpq -p' without IP address.

# /usr/sbin/ntpq -p
* 2 u 745 1024 377 0.468 0.168 0.048

If the output line starts with asterisk it means that your system time has been synced with NTP server.

Re: ntpd dead but subsys locked error

Anu Mathew — Mon, 13 Dec 2004 11:47:12 GMT

ntpd would die if your initial time difference is huge from the "right" time from the ntp server.

Here are some tips:

1) Run ntpdate from the command prompt as root to set the time before you start ntpd. This would fail with a socket error if you have ntpd running

2) Once you have run ntpdate, run sethwclock (rhel2.1) or hwclock --systohc (rhel 3.0) to set your hardware clock to the system time.

Hope this helps.

--Anu

Re: ntpd dead but subsys locked error

Chris Xu — Mon, 13 Dec 2004 11:54:23 GMT

ntpd places a lock file at /var/lock/subsys/nptd when started. If nptd died abnormally, the lock file was not removed. Go ahead deleting that file, and start your ntpd again by using "service ntpd start".

Chris

Re: ntpd dead but subsys locked error

Andrew Kaplan — Tue, 14 Dec 2004 08:54:32 GMT

Hi there --

Thank-you all for your replies. I came up with a "novel" solution to the problem. The Webmin administration utility includes a program that works with NTP and aids with the synchroniza- tion of software and system clocks on the systems in question. Once I installed the program and configured it accordingly, NTP worked fine.

Admittedly this is a "roughshod" approach to resolving this issue.