Forum OpenACS Development: Re: One week of using naviserver on openacs.org

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5: Re: One week of using naviserver on openacs.org (response to 4)
Posted by Gustaf Neumann on 10/24/13 11:54 AM
Just to keep statistics about openacs.org on one place: on https://openacs.org/forums/message-view?message_id=4099229 we had:
- OpenACS.org runs the freshest code from the oacs-5-8 branch and uses not only acs-core, but as well several packages, in which we fixed many bugs not contained in the bugtracker. These changes led to much lower numbers of error entries in the error.log: 100 days ago (using aolserver + OpenACS 5.5 + pg 8.3.5) we saw abut 17.000 errors per day, last week, we were at 3000, yesterday at 428 (many of the remaining errors are from from invalid urls, etc.).
We are still improving on openacs.org: yesterday, we had e.g. 167 errors in the error.log. Most of these errors look like caused from broken web clients, sending requests with unresolved entities in hrefs (like eg. "..../?project_id=56106&f_action_20=8949&f_state=7" instead of "..../?project_id=56106&f_action_20=8949&f_state=7"). ad_page_contract complain in such cases about "nonstandard variable names".

On google's webmaster tools, we are down from 2966 errors (on Aug 6th) to 0 errors (since Sept 21th).

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6: five months of using naviserver on openacs.org (response to 5)
Posted by Gustaf Neumann on 01/13/14 02:15 PM
It is now nearly 5 months since we switched on OpenACS.org to NaviServer and pg 9.2. The following year-view shows how nicely and stable OpenACS.org runs with the newest snapshot of OpenACS 5.8.0 from cvs (oacs-5-8 branch), which will become OpenACS 5.8.1 in the future.

In Aug. and Sep. we did some more configuration and update work which are visible in the diagram (e.g. concerning the non-core packages used on this site). Since Oct. the response times are very stable, serving about the same load as one year earlier. Average response time of the server is below 50ms, although several fast requests were eliminated (e.g. by setting expiration).

all the best
-gn

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7: Re: five months of using naviserver on openacs.org (response to 6)
Posted by Jim Lynch on 01/15/14 06:04 AM
Heya Gustaf,

Did you find out what was going on (looking at by-year graph) in the first week of July, where the graph looked like it was peaking?

-Jim

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8: Re: five months of using naviserver on openacs.org (response to 7)
Posted by Gustaf Neumann on 01/15/14 09:37 AM
At least part of the problem was running openacs.org with OpenACS 5.6 and pg 8.4 for a short time. Since PostgreSQL 8.3 reached EOL in Feb 2013, we did the upgrade to 8.4 in July, hoping that the site is small enough and the machine is fast enough not to face the well known problem with the query optimizer changes in pg 8.4 (see e.g. https://openacs.org/forums/message-view?message_id=3804765). This bad performance was the final driver to push towards OpenACS 5.8.0 addressing these problems.