[ntp:questions] Missing peer bug in 4.2.7p270
A C
agcarver+ntp at acarver.net
Sat Apr 7 03:33:39 UTC 2012
On 4/6/2012 19:59, Dave Hart wrote:
> On Fri, Apr 6, 2012 at 23:09, A C<agcarver+ntp at acarver.net> wrote:
>> There's an intermittent bug in 4.2.7p270 that seems to drop the last
>> Internet peer during startup. Note this bug exists in the unmodified source
>> code so it's nothing to do with any of the tinkering I've done.
>>
>> I have two refclocks and five Internet hosts configured for a total of seven
>> peers. Once in a while, it fails to configure the last Internet peer and
>> the ntpq billboard shows a missing entry as does the log file where there is
>> one fewer mobilize message. Restarting sometimes helps. One out of every
>> three or four restarts has a problem.
>
> Most likely this is a DNS failure. When it occurs, check your ntp.log
> or syslog for a "giving up resolving host" message. That message's
> details might suggest a change to improve the situation.
>
> Cheers,
> Dave Hart
>
No error messages for DNS in the logs (grep for DNS, giving, host,
lookup, resolve). It would appear DNS worked but the peer simply
vanished sometime during startup.
Is there a pruning process that occurs if two identical IPs come
through? I'm wondering if two of the round-robin pool servers happened
to deliver the same IP.
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