[Pdns-users] TCP listener hangs with fd error on recursor
bert.hubert at netherlabs.nl
Mon Dec 21 10:40:29 UTC 2009
On Mon, Dec 21, 2009 at 10:07:18AM +0000, Josh Berry wrote:
> I am having a problem with the powerdns recursor where the TCP listener
> dies every now and then unless the daemon is restarted periodically.
Can you tell us if you are behind a firewall? Perhaps iptables on the host
Are you running with --fork?
> The error message is as follows, pointing to a file descriptor problem of
> some sort but I cannot find any other reports of a similar issue:
> Dec 19 16:10:21 pcl-cachedns03 pdns_recursor: Error writing TCP answer to 22.214.171.124: Connection reset by peer
> Dec 19 16:10:21 pcl-cachedns03 pdns_recursor: STL error: Tried to remove unlisted fd 410 from multiplexer
Well, this is very useful debugging information. I can't see how this would
lead to TCP stopping working.
When you observe that the TCP listener has died, do you get a connection
refused when you try to connect to TCP/53? Or a timeout? Or do you get a
connection but no answer?
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Let's make sure you'll remain that in 2009 ;-)
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