<div dir="ltr">The hardware is not very old (ivybridge). The entries appear every few minutes in the log. The /etc/ntp.conf has not been modified manually. It lists 3 servers - <a href="http://0.rhel.pool.ntp.org">0.rhel.pool.ntp.org</a>, 1 and 2. At the end, there are also a couple of additional local servers with the comment added by /sbin/dhclient-script. The replica on the same network with an identical ntp.conf file doesn't have these messages in the current log. However, if I go back to a week, I see similar messages there too. The ping to public ntp servers varies from to a few ms to ~50 ms. The ping to local servers is under 1 ms. I followed steps from the first link (ntpd -qg), and the messages have stopped for now, but I suspect that they will reappear later. That's what happened last time I tried that solution. This is the output from ntpq -pn on the master:<div><br></div><div><div> remote refid st t when poll reach delay offset jitter</div><div>==============================================================================</div><div>+38.229.71.1 204.123.2.5 2 u 39 64 377 44.300 -1311.8 7.668</div><div>+64.6.144.6 128.252.19.1 2 u 25 64 377 38.184 -1327.6 12.615</div><div>-129.250.35.251 200.98.196.212 2 u 30 64 377 14.649 -1318.8 7.079</div><div> 127.127.1.0 .LOCL. 10 l - 64 0 0.000 0.000 0.000</div><div>*localnetip1 localnetref1 2 u 55 64 377 0.349 -1316.0 8.264</div><div>-localnetip2 localnetref2 3 u 64 64 377 0.459 -1309.6 10.516</div></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 10, 2015 at 5:27 AM, Andrew Holway <span dir="ltr"><<a href="mailto:andrew.holway@gmail.com" target="_blank">andrew.holway@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">If could be the server is trying to access the time server over a heavily congested network which could cause these types of problems.<div><br></div><div><br></div><div>How old is the hardware?</div><div>How often to these entries appear in the log?</div><div>What is the ping / traceroute to the time server you are using?</div><div>Are there any other machines on the same local network that are using this timeserver? Do they have problems?</div><div><br></div><div><div><div><div><br></div><div><br></div></div></div></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On 10 September 2015 at 14:18, Prasun Gera <span dir="ltr"><<a href="mailto:prasun.gera@gmail.com" target="_blank">prasun.gera@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">So I did a bit of googling and tinker panic 0 only makes sense for virtual machines. Is there any way to confirm if it is indeed a hardware issue ? </div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 10, 2015 at 5:16 AM, Andrew Holway <span dir="ltr"><<a href="mailto:andrew.holway@gmail.com" target="_blank">andrew.holway@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thats odd. You would normally not need it on bare metal. It could be broken hardware.</div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On 10 September 2015 at 14:05, Prasun Gera <span dir="ltr"><<a href="mailto:prasun.gera@gmail.com" target="_blank">prasun.gera@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks. I'm not virtualizing though. Should I still add it ? </div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 10, 2015 at 5:02 AM, Andrew Holway <span dir="ltr"><<a href="mailto:andrew.holway@gmail.com" target="_blank">andrew.holway@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div>I assume you are virtualising.<div><br></div><div>Try adding "tinker panic 0" to /etc/ntp.conf. </div><div><br></div><div>It should make it tolerant to heavily drifting virtual clocks.</div><div><br></div><div>Cheers,</div><div><br></div><div>Andrew</div>
</div><div class="gmail_extra"><br><div class="gmail_quote"><span>On 10 September 2015 at 13:46, Prasun Gera <span dir="ltr"><<a href="mailto:prasun.gera@gmail.com" target="_blank">prasun.gera@gmail.com</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><div dir="ltr"><div>OS: RHEL 7.1 w IDM</div><div><br></div>I'm seeing these messages in my master's log messages. I don't know if it's related, but I think I started seeing them after I set up a replica. Everything seems to be working fine, but I'm worried that things will break if delta grows beyond a point. I tried steps in <a href="https://access.redhat.com/solutions/35640" target="_blank">https://access.redhat.com/solutions/35640</a>, but it didn't really help. The messages still appear regularly in the log. </div>
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