I am faced with these problems after migration of data from Magento 1.9.4 to Magento 2.3:
- the configurable products are causing 503 server errors in the front-end.
- The categories with configurable products are causing 503 server errors.
the search for a configurable product is causing 503 server error.
[21-Mar-2019 03:16:01] WARNING: [pool example.com] child 57516 left signal 11 (SIGSEGV) after 1,659686 seconds from the start [21-Mar-2019 03:16:01] REALIZE: [pool example.com] child 57576 started
AH01067: Error reading the FastCGI header, reference: https://example.com/
(104) Restore the connection by pair: AH01075: Error sending the request to :, referent: https://example.com/
The products have unique URLs
- I managed to work by opening and saving a random product.
• Magento LOGS:
main.ERROR: Warning: SessionHandler :: read (): open (/ var / lib / php / session / sess_ub6spo4jcfmsh0itec4jahoik8, O_RDWR) failed: Permission Denied (13) in /var/www/vhosts/example.com/httpdocs/vendor /magento/framework/Session/SaveHandler/Native.php on line 22
Ubuntu 18.04.2 LTS
Plesk Onyx – Version 17.8.11 Update # 45
PHP 7.2.16 – FPM application served by Apache
Nginx: proxy mode + intelligent processing of static files
max_input_vars = 10000
max_input_nesting_level = 800
precision = 14
output_buffering = 44096
Memory limit: 10GO