Fumiki Takahashi

TAROSKY INC.

Kunoichi INC

Have you ever seen an error log like the one below?
<blockquote>
PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted (tried to allocate xxx bytes) in /var/www/wordpress/wp-includes/wp-db.php on line 2007
</blockquote>
This means that <a href="https://www.php.net/manual/en/ini.core.php#ini.memory-limit" rel="nofollow ugc">PHP memory limit</a> is exhausted while retrieving data from a database. In any case, this happens when your site has big data and makes insane loops inside.
But we want to know that which plugin tried to retrieve data?
Hagakure adds extra information to error.log file when <code>wp-db.php</code> causes memory limit error:
<pre>[08-May-2019 10:28:37 UTC] wpdb Error Backtrace:
#1 Kunoichi\Hagakure\DbLogger->filter_query() /app/public/wp-includes/class-wp-hook.php Line 286
#2 WP_Hook->apply_filters() /app/public/wp-includes/plugin.php Line 208
#3 apply_filters /app/public/wp-includes/wp-db.php Line 1871
#4 wpdb->query() /app/public/wp-includes/wp-db.php Line 2579
#5 wpdb->get_results() /app/public/wp-includes/class-wp-query.php Line 2979
#6 WP_Query->get_posts() /app/public/wp-includes/class-wp-query.php Line 3387
#7 WP_Query->query() /app/public/wp-includes/post.php Line 1961
#8 get_posts /app/public/wp-content/plugins/hagakure/hagakure.php Line 34
#9 {closure} /app/public/wp-includes/class-wp-hook.php Line 286
#10 WP_Hook->apply_filters() /app/public/wp-includes/class-wp-hook.php Line 310
#11 WP_Hook->do_action() /app/public/wp-includes/plugin.php Line 465
#12 do_action /app/public/wp-includes/template-loader.php Line 13
#13 require_once /app/public/wp-blog-header.php Line 19
#14 require /app/public/index.php Line 17
#15 URI: /?p=1</pre>
This log will always follow the memory limit Fatal Error by <code>wp-db.php</code>. Now you can find <code>#8</code> calls <code>get_posts</code> repeatedly.
We recommend watching logs with notification services like <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/WhatIsCloudWatchLogs.html" rel="nofollow ugc">CloudWatch Logs</a>. 
This error occurs in the productional environment, and you may not have a chance to see it occurs. 
We use Hagakure with our <a href="https://hosting.kunoichiwp.com/" rel="nofollow ugc">hosting service</a>, please look forward to seeing <a href="https://kunoichiwp.com/blog" rel="nofollow ugc">our blog published</a> and describing the integration!
This plugin also adds debug backtrace to error logs. To modify the error level to a detailed backtrace, define the constant in <code>wp-config.php</code> or somewhere else:
<pre>define( 'HAGAKURE_ERROR_LEVEL', E_NOTICE | E_USER_WARNING | E_WARNING | E_USER_ERROR );</pre>
Besides that, if <code>SAVEQUERIES</code> is set <code>true</code>, the slow query log will be logged with PHP debug backtrace. This helps you to debug.
<h3>Acknowledgements</h3>
The base text for dummy content is “Three Ghost Story” by Charles Dickens. The text file is modified the one of <a href="https://www.gutenberg.org/ebooks/1289" rel="nofollow ugc">Project Gutenberg</a>.

Hagakure – Yet Another Error Reporter

This plugin makes it easy to find the root cause of PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted error. AWESOME.


Great

Looks good

A WordPress plugin to clarify meaningless errors like "Allowed memory size of xxxxxxxx bytes exhausted".

Didio Silva Sousa

🚨 Locked out of your WordPress site? 
CrashGuard Lite provides a simple way to reset permalinks and get recovery instructions if a problematic plugin blocks your site. 
If you cannot access your admin area, use the emergency recovery page.
<h3>⚡ Main Features:</h3>
<ul>
<li>🔗 Reset Permalinks: Quickly refresh your site URLs to restore access.</li>
<li>🔐 Remote Emergency Recovery: Access a public recovery page by entering your API key.</li>
<li>🛠 Clear Instructions: Get guided steps to manually disable problematic plugins.</li>
<li>⚡ Secure Authentication: Uses an API key (and nonce on the emergency page) for secure recovery actions.</li>
</ul>
<h3>Credits</h3>
Developed by Didio Silva 
Website: <a href="https://crashguardwp.com" rel="nofollow ugc">https://crashguardwp.com</a> 
Support: <a href="mailto:soporte@crashguardwp.com" rel="nofollow ugc">soporte@crashguardwp.com</a>

CrashGuard Lite

Short Description: Emergency recovery tool to reset permalinks and provide clear recovery instructions.

Hagakure – Yet Another Error Reporter vs CrashGuard Lite