Bug in WP-Rocket extension?

[Alwin]

As a new pro user I tried the WP-Rocket extension today.

I did some work at my websites today around 13:00. After that I emptied the WP-Rocket cache and after that preload the WP-Rocket cache, using the WP_Rocket extension.

I got a message on my MainWP dashboard telling me that everything went successfully.

However a few hours later I look at my NewRelic performance monitoring dashboard and I see much longer loading times for all my sites, starting around the time I used the WP-Rocket extension to clear and preload the cache.

When I looked in the source code from my slow loading websites it seems that the cache was not working anymore! I did not see the line “<!-- This website is like a Rocket, isn’t it? Performance optimized by WP Rocket.” at the end of the source code. Mostly this means the cache is not working.

The fact the cache was not working seems to be started at the time I run the WP-Rocket extension.

I decided to clear and preload the cache again, but this time I logged in at the wp-admin from one of my sites and cleared and pre-loaded the cache from the WP-Rocket plugin settings directly. The results; the loading times went back to normal.

Okay… so now I went back to my MainWP dashboard, selected all the sites that where still loading slow, and used the WP-Rocket extension to clear and preload the cache.

But nothing changed… the loading times where not going down.

Long story short, I run a lot of tests, and discovered that the WP-Rocket extension is only working when the wp-admin is also open (in another browser tab) and also I need to refresh the wp-admin page to get the cache working again.

I know caching can cause complicated problems, but I think it might be a good idea if the developers take a good look at the WP-Rocket extension and test if it’s working as it supposed to be.

[bogdan (Bogdan Rapaić)]

Hi Alwin,

Thanks for reaching out and for the detailed report.

I would like to have our dev team take a look at this. For the start, can you please post the community system report from your MainWP Dashboard for review? The report is located in your Dashboard under Status → Server, on the top right of the page.

Be sure to use the button like the one below; this button hides all your private information:

Pressing the button auto-copies the report to your clipboard then just paste it in a reply here.

[Alwin]

### Server Info                    Required                                               Detected                                     Status   ###

MainWP Dashboard                   
MainWP Dashboard Version           4.1.6                                                  4.1.6                                        Pass        
MainWP Upload Directory            Writable                                               Writable                                     Pass        
MainWP Extensions                  
Advanced Uptime Monitor Extension  5.1.1                                                  API License Active                           Pass        
MainWP Clean and Lock Extension    4.0.1.1                                                API License Active                           Pass        
MainWP Client Reports Extension    4.0.8                                                  API License Active                           Pass        
MainWP Google Analytics Extension  4.0.3.1                                                API License Active                           Pass        
MainWP Page Speed Extension        4.0.1.1                                                API License Active                           Pass        
MainWP Pro Reports Extension       4.0.5                                                  API License Active                           Pass        
MainWP Rocket Extension            4.0.2                                                  API License Active                           Pass        
MainWP UpdraftPlus Extension       4.0.4                                                  API License Active                           Pass        
MainWP Wordfence Extension         4.0.3                                                  API License Active                           Pass        
WordPress                          
WordPress Version                  >=3.6                                                  5.7.1                                        Pass        
WordPress Memory Limit             >=64M                                                  512M                                         Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
FileSystem Method                  = direct                                               direct                                       Pass        
PHP                                
PHP Version                        >=5.6                                                  7.3.27-9+0~20210227.82+debian9~1.gbpa4a3d6   Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Max Execution Time             >=30 seconds                                           480                                          Pass        
PHP Max Input Time                 >=30 seconds                                           480                                          Pass        
PHP Memory Limit                   >=128M                                                 512M                                         Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Upload Max Filesize            >=2M                                                   64M                                          Pass        
PHP Post Max Size                  >=2M                                                   64M                                          Pass        
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        
cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          300                                          Pass        
cURL Version                       >=7.18.1                                               7.52.1                                       Pass        
cURL SSL Version                   >=OpenSSL/0.9.8l                                       OpenSSL/1.0.2u                               Pass        
PHP Allow URL fopen                YES                                                    
PHP Exif Support                   YES ( V7.3.)                                           
PHP IPTC Support                   YES                                                    
PHP XML Support                    YES                                                    
PHP Disabled Functions             , pcntl_alarm, pcntl_async_signals, pcntl_exec, pcntl_fork, pcntl_get_last_error, pcntl_getpriority, pcntl_setpriority, pcntl_signal, pcntl_signal_dispatch, pcntl_signal_get_handler, pcntl_sigprocmask, pcntl_sigtimedwait, pcntl_sigwaitinfo, pcntl_strerror, pcntl_wait, pcntl_waitpid, pcntl_wexitstatus, pcntl_wifcontinued, pcntl_wifexited, pcntl_wifsignaled, pcntl_wifstopped, pcntl_wstopsig, pcntl_wtermsig,
PHP Loaded Extensions              Core, PDO, PDO_Firebird, PDO_ODBC, Phar, Reflection, SPL, SimpleXML, Zend OPcache, apc, apcu, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dba, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, igbinary, imagick, imap, interbase, intl, ionCube Loader, json, libxml, mbstring, memcached, mongodb, msgpack, mysqli, mysqlnd, odbc, openssl, pcre, pdo_dblib, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, posix, readline, recode, session, shmop, soap, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib
MySQL                              
MySQL Version                      >=5.0                                                  10.1.48-MariaDB-1~stretch                    Pass        
MySQL Mode                         NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION             
MySQL Client Encoding              utf8                                                   
Server Info                        
Server Software                    Apache/2.4.25 (Debian)                                 
Operating System                   Linux                                                  
Architecture                       64		 bit                                               
Server Protocol                    HTTP/1.0                                               
HTTPS                              ON                                                     
Server self connect                Not expected HTTP response body:                       
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36
Gateway Interface                  CGI/1.1                                                
Memory Usage                       11.27 MB                                               
Request Time                       1620313200                                             
Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content             N/A                                                    
MainWP Settings                    
Number Of Child Sites              11                                                     
Use WP-Cron                        Yes                                                    
Optimize for Shared Hosting or Big NetworksNo                                                     
Automatic Daily Update             Install trusted updates                                
Abandoned Plugins/Themes Tolerance 180                                                    
Maximum number of posts to return                                                         
Maximum number of pages to return                                                         
Primary Backup System              Default MainWP Backups                                 
Maximum simultaneous requests      4                                                      
Minimum delay between requests     200                                                    
Maximum simultaneous requests per ip1                                                      
Minimum delay between requests to the same ip1000                                                   
Maximum simultaneous sync requests                                                        
Minimum simultaneous install/update requests                                                       
Active Plugins                     
Breeze                             1.1.11                                                 Active                                       
MainWP Dashboard                   4.1.6                                                  Active                                       
Wordfence Security                 7.5.2                                                  Active                                       
WP Mail SMTP                       2.8.0                                                  Active                                       

[bogdan (Bogdan Rapaić)]

Hi Alwin,

Thanks. Report looks good to me.

I will have our devs check this.