3.4 moves from using time() to microtime() for the doing_wp_cron lock. This increases the size of the URL but should not exceed limits. Alas, I’m not sure what’s going on here.
They don’t all fail:
212.38.177.40 - - [30/May/2012:15:49:11 -0500] "POST /wp-cron.php?doing_wp_cron=1338410951.1009919643402099609375 HTTP/1.0" 200 294 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
212.38.177.40 - - [30/May/2012:16:03:30 -0500] "POST /wp-cron.php?doing_wp_cron=1338411810.7593560218811035156250 HTTP/1.0" 500 313 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
212.38.177.40 - - [30/May/2012:16:30:05 -0500] "POST /wp-cron.php?doing_wp_cron=1338413404.9970750808715820312500 HTTP/1.0" 500 313 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
212.38.177.40 - - [30/May/2012:17:12:37 -0500] "POST /wp-cron.php?doing_wp_cron=1338415957.2825150489807128906250 HTTP/1.0" 500 313 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
212.38.177.40 - - [30/May/2012:17:14:06 -0500] "POST /wp-cron.php?doing_wp_cron=1338416046.8062679767608642578125 HTTP/1.0" 200 294 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
Any errors in error_log (e.g. “Out of memory”)?
Nope, there’s no error_log file in wp-admin
It might be in another directory. Generally, when Internal Server Error is issued, a distinct error message can be found in the error logs.
Nope,no error_log. I do, however, log all PHP errors and found this
[31-May-2012 12:48:39] PHP Fatal error: Call to undefined function w3_url_format() in /var/www/mywordpress/wordpress/wp-content/plugins/w3-total-cache/lib/W3/Plugin/PgCacheAdmin.php on line 213
at the same time as this (when doing the math from CDT to GMT
212.38.177.40 - - [31/May/2012:07:48:39 -0500] "POST /wp-cron.php?doing_wp_cron=1338468519.3858940601348876953125 HTTP/1.0" 500 313 "-" "WordPress/3.4-RC1-20950; http://mywordpress.sterndata.com" 311 -
It seems that there’s a problem with W3 Total Cache 0.9.2.4 and WP 3.4
I’m running w3tc and 3.4 without that error anywhere.
I just upgraded to the latest nightly and will monitor my logs (httpd and php errors).
With WP 3.4.1:
Looking at my current access_log file,
500 errors on wp-cron.php: 344
successful wp-cron.php calls: 511
