May 26, 2010

Beware WP-Cache

Trying to speed things up here. Pages loading slow, and the host is talking about overages. Well, just a hint, don’t look to the WP-Cache plugin for speed. I found this today:

No more wp-cache • deanjrobinson.com

So last night almost exactly 24 hours after I installed, activated and configured wp-cache, guess what happened. Yes, my blog shat itself again. Thing was I was asleep and didn’t find out about it until this morning, so my site was down for 8 hours, really quite pissed off about that.

Wish I read this yesterday. That’s what happens when you watch a WordCamp 2007 video — they recommended WP-Cache, assumed it would still work if WP engineers made a point to recommend it. But that video is now three years old, what was I thinking?

Same problem here, the plugin seems to work for a while, fast. Then out of nowhere your pages stop working, entire site goes into a freeze. As soon as you turn off the plugin your site works again. But even when the plugin is operating “normally” you can’t leave a comment on cached pages!



Wordpress feature image page?
24 comments on page 1065

Addsettingsfield?
3 comments on page 793

Shorter link?
4 comments on page 1190

Shorter link?
4 comments on page 1190

Cssimageforlogin?
no comment on page 128

Cssimageforlogin?
no comment on page 128

Get featured image url wordpress?
24 comments on page 1065

How to clear wpcache?
9 comments on page 1310

Photo gallry code html5?
6 comments on page 1305

Wordpress get image size?
24 comments on page 1065

Sitecouk wptheme?
2 comments on page 1376

Wordpress chat disqus?
no comment on page 1308

Howtocreategoodsizelayout?
4 comments on page 1026

Friend connect profile?
6 comments on page 1364

Get medium image from post?
24 comments on page 1065

Tabbed widgets wp?
no comment on page 333

Wordpress pictue cache lschen?
9 comments on page 1310

Wordpress plugin post separator?
no comment on page 1371

Display photos html 5?
6 comments on page 1305

Fun wordpress themes?
2 comments on page 1376

Wp featured image without size?
24 comments on page 1065

Wordpress get url global?
4 comments on page 1190

Wp unlimited?
3 comments on page 1141

Html5 image gallery?
6 comments on page 1305

Wordpress exif plugin?
12 comments on page 230

Css login screen?
no comment on page 128

Htlm 5 photo gallery?
6 comments on page 1305

Image gallery html 5?
6 comments on page 1305

Css login screen?
no comment on page 128

Comments by intensedebate?
7 comments on page 1175

Wordpress andrew rickmann?
2 comments on page 1376

Wordpress medium large?
24 comments on page 1065

Fun with uninstallation wordpress?
53 comments on page 100

How to clear wp cache?
9 comments on page 1310

Html5 gallery?
6 comments on page 1305

Photoshop frameworks?
3 comments on page 296

Wordpress post multiple images?
24 comments on page 1065

Html 5 photo gallery?
6 comments on page 1305

Login screen css template?
no comment on page 128

Html5 photo gallery code?
6 comments on page 1305
  every 2005s, 1s ago, in 0.03s.
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 DJ

Perhaps you should edit your post to say that WP-Cache wasn’t the problem in case someone doesn’t read the comments?

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 Anvil

I had to delete from my blog as well, it did horrible things to it. Slowed it to a crawl, created errors etc.

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 PJ

Thanks for the tips Simon.

I did test the plugin on a non-vital domain first, but failed to notice the plugin was not recently updated.

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 simon

I would have been extremely wary about installing a plugin that hasn’t been updated since September 2007! WordPress has changed a hell of a lot since then…

When I’m investigating a new plugin (especially one that is providing absolutely critical functionality), I always check how recently the plugin was updated, how active the author is, I check out comments & answers on the support forum, etc.

I then search for a key phrase (e.g. “cache”) on wordpress.org/extend/plugins – you see below each result the date the plugin was updated, number of downloads and user ratings – all very helpful stuff.

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 admin

Turns out the incident that night was a ddos.

Can’t say I know for sure what happened with wp-cache, why it didn’t work for me. But I have one theory–maybe wp-cache broke because of the ddos, maybe it cached blank pages? Anyway, I don’t plan to investigate wp-cache further, but figured it was worth mentioning.

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 admin

Update: turns out my host had an “incident” that night, most likely unrelated to the wp-cache plugin. However, my non-cached sites were definitely working while the cached site was not working.

I suppose it’s possible the downtime caused wp-cache to break. Maybe blank pages were cached? But there are other reasons to not use wp-cache: the author says on his site he wants someone else to take over development of it. Sounds like he doesn’t have time for it.

In any case, I’m going to try Super Cache ASAP.

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 admin

I just realized you’re the author of it. Now I feel dumb.

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 admin

Thanks for the comment Donncha. Yes, I’m going to try installing it today.

Are you using Super Cache? How do you like it?

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 Donncha O Caoimh

Why not just use WP Super Cache? Much better and faster than any other caching plugin. :)


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