[Pdns-users] Outgoing timouts problem (?)

[Nick Milas]

Hi all,

I have just entered full production running, with pdns 9.22 and recursor 
3.3 on two servers with ldap backend (openldap replicated with syncrepl).

Can someone please give some info on outgoing timeouts (which seem 
significant)?  What do these actually mean, and if they are a real 
problem; if so, what should I do to resolve?

I found in the manual that these are: "number of timeouts on outgoing 
UDP queries since starting". Why do I have such timeouts? What should I 
check?

Here is an excerpt from recursor log on one server:

Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: 529100 questions, 
457693 cache entries, 5199 negative entries, 1% cache hits
Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: throttle map: 2, ns 
speeds: 1533
Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: outpacket/query ratio 
172%, 1% throttled, 0 no-delegation drops
Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: 845 outgoing tcp 
connections, 2 queries running, 66140 outgoing timeouts
Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: 217172 packet cache 
entries, 0% packet cache hits
Dec  4 11:09:09 dns2 pdns_recursor[2248]: stats: 0 qps (average over 
1984 seconds)
Dec  4 11:23:55 dns2 pdns_recursor[2248]: Refreshed . records

And an excerpt from the other server log:

Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: 352149 questions, 49361 
cache entries, 3405 negative entries, 21% cache hits
Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: throttle map: 3, ns 
speeds: 675
Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: outpacket/query ratio 
61%, 21% throttled, 0 no-delegation drops
Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: 303 outgoing tcp 
connections, 1 queries running, 39967 outgoing timeouts
Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: 18896 packet cache 
entries, 63% packet cache hits
Dec  4 11:39:03 vdns pdns_recursor[2217]: stats: 0 qps (average over 
1935 seconds)

Thanks in advance,
Nick Milas