[Pdns-users] Fwd: Power DNS recursor entered failed state

[Leen Besselink]

On Mon, Dec 07, 2015 at 11:23:31AM +0000, Federico Olivieri wrote:
> Hi Guys,
> 
> Not 100% sure if is a PDNS problem but yesterday I have upgraded it (for
> mistake!)  via apt-get command and now I'm running the
> version 0.0.410g1cfe8b4
> 
> Since the Upgrade the memory allocation seems not uniform compared to before
> 
> Also, it seems that stop to run after a while and I need to restart the
> process manually
> 
> That is the error form syslog
> 
> Dec 07 10:54:45 T1000 kernel: pdns_recursor[30724]: segfault at 0 ip
> 00007ff1c8464a94 sp 00007ff1bcac4830 error 4 in
> pdns_recursor[7ff1c82ae000+276000]
> Dec 07 10:54:45 T1000 systemd[1]: pdns-recursor.service: main process
> exited, code=killed, status=11/SEGV
> Dec 07 10:54:45 T1000 systemd[1]: Unit pdns-recursor.service entered failed
> state.
> 
> Also, you can see the server on Metronome with the name of t1000-gtel
> 
> Any suggestion? Any quick way to roll-back the PDNS version installed
> 

Sounds like you are using Debian or Ubuntu or similar flavor.

Hete is how you do that with apt-get/dpkg:

If you look in /var/log/apt/ you can see what the previous version was that was installed:

Preparing to replace pdns-recursor old-version (using .../pdns-recursor-new-version.deb) ...

Probably best to use apt-get to install the old version:

apt-get install pdns-recursor=version-number

If that doesn't work:

You can look in /var/cache/apt/archives/ you might find the old version.

Depending on the depencies, you might be able to just install the old version with:

dpkg -i /var/cache/apt/archives/pdns-recursor-something.deb

> Thank You
> 
> P.S.
> 
> I re-sent the e-mail without image attached because it was too big
> 
> Federico

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