stats not available?

[three]

I have several accounts, and none of them are able to show stats for "Top sites" or "All sites".[nbsp][nbsp]Is there a reason why this option doesn't work?[nbsp][nbsp]The message I get is "No top client domains available".

And on some accounts we have, if you switch months to view stats for specific months, the page is not found (404 page comes up).

Any suggestions or explanations?

thanks

[Terra]

none of them are able to show stats for "Top sites" or "All sites". This is because reverse HostName lookups are turned off for performance reasons...[nbsp][nbsp]This 'feature' is the #1 Apache performance killer as it relies on DNS for every request...

For your second question:
1) which domains
2) which month

--
Terra
sysAdmin
FutureQuest

[Bob]

Hi,

In answer to your first question, from the Service Desk FAQ's

The reason that HostNameLookups is not on, is due to performance reasons... DNS was not written to be fast, but rather scalable... When a request is made for your web page, Apache must put the delivery of your web page on hold while it sends out a DNS IP lookup request... This can present severe delays to[nbsp][nbsp]the delivery of your content and also tie up extra Apache resources during the delay...

We used to post-process the log files and reverse resolve the IP's before piping them through our STATS analyzer - but this increased our 2 hour STATS run to 12 hours as we are dealing with an aggregate of
2.5 _Terabytes_ of processed log files... The impact is just too steep[nbsp][nbsp]and unrealistic for the convenience[nbsp][nbsp]of 'Country Stats'... If you really need them, then the option of your post-processing them is always
[nbsp]available...

Now, there is some light at the end of the tunnel though... I can, upon request, turn on HostNameLookups for your domain only and let Apache reverse the IP to hostname...

BUT, by doing so, you are agreeing in taking a 5% - 60% performance hit on the delivery of your[nbsp][nbsp]content...

If you agree to that, then I will turn on that Apache feature and Country Stats will begin to show up from that point forward as I will not reverse resolve existing log file entries due to the way rotation is[nbsp][nbsp]done...

If you do want this done for your domain simply send us an email to Service@FutureQuest.net, requesting it.

In regards to your second question, this Forum thread should clear it up for you:
http://www.aota.net/ubb/Forum5/HTML/001162-1.html

I hope this helps :)

Have a Good One
Bob

- Zip this, Zip that, Ole Mc'Donald...[nbsp][nbsp]No wait that's something else :P -
[This message has been edited by Bob (edited 02-27-01@6:13 pm)]