[Pdns-users] Error with rec_control reload

[MRob]

On 2018-05-07 09:19, Remi Gacogne wrote:
> On 05/07/2018 11:02 AM, Aki Tuomi wrote:
>>>> Can you run sudo strace -econnect,bind rec_control reload-lua-script 
>>>> and
>>>> post the result?
>>> 
>>> yes, thanks for your help
>>> 
>>> bind(3, {sa_family=AF_LOCAL, sun_path="/var/run/lsock6hPxMw"}, 110) = 
>>> 0
>>> connect(3, {sa_family=AF_LOCAL,
>>> sun_path="/var/run/pdns_recursor.controlsocket"}, 110) = 0
>>> Fatal: Timeout waiting for answer from control channel
>>> +++ exited with 1 +++
>>> 
>>> Yet in the log I still see the error
>>> pdns_recursor: 0 (Re)loaded lua script from
>>> '/etc/pdns-recursor/blocklist.lua'
>>> ...
>>> pdns_recursor: Error dealing with control socket request: Unable to
>>> send message over control channel '/var/run/lsock6hPxMw': No such 
>>> file
>>> or directory
>>> 
>>> Is the problem caused/related to the timeout?
> 
> What's happening is that the recursor is taking more than the default
> timeout of rec_control (5s) to do the actual reload, so rec_control
> stops waiting, delete its socket and exits.
> The recursor is still completing the reload, and tries to reply to the
> rec_control process over the socket afterwards, except the socket is 
> now
> gone, hence the error.
> 
> So yes, the reload is done as indicated by the "(Re)loaded lua script
> from ..." line in the logs. If you want to avoid the "Unable to send
> message over control channel" line in your logs, just use a longer
> timeout value for rec_control using the --timeout parameter.
great thanks!