Hello,
Actually many users are reports that they are facing issue with webmail ( Roundcube) for a specific domain.
They mainly reports as following:
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1. Most of the time its showing server error.
2. Its taking too much time to load the page or switching folder or another menu (i.e Mail to Settings, Inbox to Sent)
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They are using the mentioned below URLs:
https://server.hostname.com:2096
Issue is persist for both URLs. In our investigation we found that in our business hours, when 70-80 users are using webmail at the same time simultaneously then this issue has occurred.
We have checked the log [ /usr/local/cpanel/logs/php-fpm/error.log ] and found something like:
Code:
server reached max_children setting (25)
Then we have increased the value from 25 to 100 but they get reset to previous/default value to 25 once new cPanel updated or server rebooted. And this is 3rd time the said value reset to previous/default value.
For this issue we had contacted with our hosting provider, even they also contacted with cPanel support via a ticket previously in last April. In that time they mentioned as following:
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Per their recommendation, we have modified the default max_children for the internal PHP-FPM service utilized by cPanel services (such as webmail) which should address this issue
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But now again same issue occurred due to cPanel update/server rebooted, we have contacted again with our provider and now this time they are saying that there is no permanent solution while using PHP-FPM service. Also they advised to disable PHP-FPM service for permanent solution otherwise we must have to modify every time when cPanel updated or server rebooted.
We came here with very frustration if we could find a permanent solutions. Please suggest.
Reagards,