If you notice, blogjer.com is very slow for the last couple of days. I’m very much aware of this, but I couldn’t find out what was happening initially. Only blogjer.com is affected. The rest of the websites sharing the same web hosting package work fine.

After hours of digging, I finally know why. This is how it started. Few days ago, I installed WP-OpenId, OpenId plugin to allow commenting using OpenID standard, which means you can use your account such as Yahoo, Technorati to leave comments. But unfortunately it did not go as smooth as I had predicted.

The problem even started in the midst of activating this plugin. Since I’m still using php4, I have to change some part of the code to get the plugin activated. It works, but the problem didn’t stop there. On this plugin menu, there is 1 warning that I don’t expect to cause slowness on the whole blogjer.com. Furthermore it is a warning message only, not an error. I know it was my mistake for not doing further research when I see this error initially. My bad.. I leave the warning message in place without taking any action. This also causes the drop of the number of visitors and traffic to blogjer. 

I’m suspecting this is some kind of memory leaking perhaps

Warning: implode() [function.implode]: Bad arguments. in
/home/myusername/domains/mydomain/public_html/wp-content/plugins/openid/interface.php on line 379

There is adiscussion about this error, but no resolution is found at this point. I have deactivated and deleted the plugin from my hosting package, but it seems the problem can still be seen slightly. I’m thinking of installing WP-Cache2 to increase the performance, but maybe on a later stage and after doing feasibility study of this plugin. I don’t want the same problem reoccurring.

Off topic, I found this articles which is top of the google’s search for the keyword ‘how to improve Wordpress performance‘ but it seems like no one is commenting this article. Does it mean that its not good enough, or that Google has mistakenly put this article on top of search engine result?

In case if you’re interested on how to improve your wordpress performance, you better check out Wordpress optimization page. There are bunches of information available there.