too many fatal errors

[ArXoS]

Hello elxis

Every day my site goes down and returns :

The detailed error message was:
ERROR in file /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php line 43 Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php:43
Stack trace:
#0 /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php(43): PDOStatement->execute(NULL)
#1 /home/mousali/public_html/includes/libraries/elxis/database/table.class.php(55): elxisPDOStatement->execute()
#2 /home/mousali/public_html/includes/libraries/elxis/session.class.php(516): elxisDbTable->load('a1291749a07bbf5...')
#3 [internal function]: elxisSession->database_read('a1291749a07bbf5...')
#4 /home/mousali/public_html/includes/libraries/elxis/session.class.php(202): session_start()
#5 /home/mousali/public_html/includes/libraries/elxis/session.class.php(160): elxisSession->start()
#6 /home/mousali/public_html/includes/libraries/elxis/factory.class.php(160): elxisSession->__construct(Array)
#7 /home/mousali/public_html/includes/libraries/elxis/framework.class.php(69): eFactory::getSession(Array)
#8 /

This error was logged



Is this a problem of the hoster? Attacks ? Something else ??
I asked my hoster to increase  innodb_lock_wait_timeout but its beyond my hosting plan this option. Any ideas?

[ArXoS]

site comes up with this

Fatal error
Unrecoverable error!
Database connection failed! SQLSTATE[HY000] [1203] User mousali_2024 already has more than 'max_user_connections' active connections
Reference code: SEC-DBC1203

[datahell]

This has nothing to do with Elxis or PHP. There is a setting in MySQL database named "max_user_connections", as your logs write, which limits the maximum number of simultaneously connections. If you reach this limit the database refuses new connections and therefor you get an error from MySQL. To solve this problem increase the value of max_user_connections

[ArXoS]

Datahell thanks for your answer.

Is there any way to kill active connections sooner to keep max users into limits ?

[ArXoS]

Datahell, are we are sure that this is the problem ?
The traffic isnt so high, i have visitors about 20 per day an now there are about 8 online visitors and site is down.
Its not logical to reach max Connection

This is my fatal error message

[2025-01-23 23:21:02]    ERROR in file /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php line 43
Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php:43
Stack trace:
#0 /home/mousali/public_html/includes/libraries/elxis/database/statement.class.php(43): PDOStatement->execute(NULL)
#1 /home/mousali/public_html/includes/libraries/elxis/database/table.class.php(55): elxisPDOStatement->execute()
#2 /home/mousali/public_html/includes/libraries/elxis/session.class.php(516): elxisDbTable->load('0b1983764e41c8e...')
#3 [internal function]: elxisSession->database_read('0b1983764e41c8e...')
#4 /home/mousali/public_html/includes/libraries/elxis/session.class.php(202): session_start()
#5 /home/mousali/public_html/includes/libraries/elxis/session.class.php(160): elxisSession->start()
#6 /home/mousali/public_html/includes/libraries/elxis/factory.class.php(160): elxisSession->__construct(Array)
#7 /home/mousali/public_html/includes/libraries/elxis/framework.class.php(69): eFactory::getSession(Array)
#8 /

[datahell]

Yes, I am 100% sure. Don't be confused by the error in Elxis.

PHP in Elxis tells you "I cannot save the session to the database". Why? Because the database connection closed (gone away). Without database connection all related database queries will though a php error. Session related queries are one of the first towards the database so it is very possible for the error to occur there.

Why the database connection failed? Because it reached the limit of "max_user_connections".

Why? Possible reasons:
1. You have a low limit -> increase it
2. Your site lately has really many visitors -> increase it
3. Your site faces attacks (many visitors) -> increase it and block attacks

Tip: If you allow persistent database connections, stop it.

The default value of max_connections is 151

Consider this example:
You have max_user_connections = 10
You have 9 connections active
You request a page a new connection opens (10th)
A new request tries to open a new connection. Due to the limit the previous one closes in order to open a new one. The user of the previous connection gets an error.

You could select in Elxis configuration to save sessions in files instead of database. However I dont recommend it:
1. It is slower
2. It will not stop from errors. The error most probably will just happen in a next db query.

[ArXoS]

Thanks for your reply
According to this, the good news are that the first connections have access to the site and the next requests are on hold. This is something

I think that i am facing this for security reasons. Too many attacks. Anyway

2 questions :

1. How can i stop persistent database connections? Is this possible on a shared hosting ?
2. How can i save sessions in files ? Is this an elxis configuration?
3. How can i force defender to ban ips from their first attack instead of third?

[datahell]

Persistent db connections
Elxis configuration file:
DB_PERSISTENT = 0

Save sessions in files (DON'T DO IT)
Elxis configuration file:
SESSION_HANDLER = files (saves in Elxis folder repository/session/)
or
SESSION_HANDLER = none (saves in server per-configured path - make sure the setting is correct in your PHP)

Defender
Defender might block from the first time, depends on the type of attack. In this case marks 3 blocks with 1 attack and therefor bans immediately.
You can enable IPs and IP ranges in Defender (it rocks, but makes the site a little slower).
Elxis administration > Settins > Security > Elxis defender: Enable General rules, IP and IP ranges

Tip: Do not strength security in Elxis Defender too much for a long period as it slows down your site. Elxis is secure even with Defender disabled. Regardless the attacks you have nothing to fear from Elxis. Just make sure you have all the updates applied and you store no insecure or forgotten files and scripts on site.

[ArXoS]

Thanks captain