[dnsdist] Obscene amount of drops

[bert hubert]

On Wed, Jan 06, 2016 at 11:24:20AM -0600, Miguel Miranda wrote:
> Hello to all, i have just discovered this great dnsdist package, im testing
> it with a resolver serving several thousands cablemodems, i configured two
> resolver instances, pdns-recursor and unbound. Using a simple configuration:

Hi Miguel,

Before you subscribed we posted this on Monday:
http://mailman.powerdns.com/pipermail/dnsdist/2016-January/000052.html

This may be helpful to determine what is getting dropped.

Please let us know!

	Bert

> 
> controlSocket("0.0.0.0")
> webserver("0.0.0.0:8083", "J4s0n2015")
> addLocal("127.0.0.1:53")
> setKey("MXNeLFWHUe4363BBKrY06cAsH8NWNb+Se2eXU5+Bb74=")
> carbonServer("37.252.122.50", "J4s0nDNSDIST", 30)
> 
> warnlog(string.format("Script starting %s", "up!"))
> 
> -- define the good servers
> newServer {address="127.0.0.1:5353", name="unbound"}
> newServer {address="127.0.0.1:5454", name="pdns-recursor"}
> 
> What i just discovered after ruuning dnsdistis a obscene amount of drops, i
> am not clear about what is the meaning of this, are server fail errors?,
> timeouts?, etc.
> What do you recommend me to check?
> Because of this im running  recursor instances with trace on but i dont see
> any droping packet error.
> 
> > showServers()
> #   Name                 Address                       State     Qps
> Qlim Ord Wt    Queries   Drops Drate   Lat Pools
> 0   unbound              127.0.0.1:5353                   up    57.0
> 0   1  1    6219959   93631   1.0 119.9
> 1   pdns-recursor        127.0.0.1:5454                   up    74.0
> 0   1  1    3736215  250433   2.0 228.8
> All
> 129.0                   9956174  344064

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