[analog-help] Slow DNS?

[Klaus Johannes Rusch]

Iain Hunneybell wrote:
>
> I have some fairly large logs to crunch (40-50Mb each, maybe 6 or more 
> analysed together) and analog is taking a long time (several hours) to 
> 'crunch' these. However, the machine's not busy and analog is showing 
> as using 0% CPU.
>
> My suspicion is that analog may be throttling DNS queries but this is 
> only a guess. Something seems to be causing it to take a long time to 
> complete although it's clearly not working hard on the data.
>
As the analog documentation mentions, "Because analog's DNS lookups use 
only standard, platform-independent code, they are slower than lookups 
optimised for particular platforms. (This is especially true on 
platforms without the DNSTIMEOUT command described below.)"

For larger log files you may want to look at the helper applications at 
http://www.analog.cx/helpers/index.html#dns instead.

-- 
Klaus Johannes Rusch
KlausRusch at atmedia.net
http://www.atmedia.net/KlausRusch/