SQLSTATE[HY000]: General error: 1835 Malformed communication packet on LARAVEL

Question

Suddenly got

SQLSTATE[HY000]: General error: 1835 Malformed communication packet (SQL: select * from tb_users where (username =

Answer 1

After many workarounds i tried today this the solutions i got

1- upgrade to php 7.3 or 7.4
(many websites will be down after php upgrades )

2- downgrade to minor version ( mariadb 10.4.16 to 10.4.15)

yum downgrade MariaDB-server MariaDB-common MariaDB-shared MariaDB-client MariaDB-compat MariaDB-devel    

anyway this problem is opened case as bug for Mariadb last night update and they didnt push any fixing for now the above solution is only the 2 ways to solve the problem , it works with me on mariadb downgrade from 10.4.16 to 10.4.15 (minor downgrade)

Answer 2

Updated php version**(7.2 to 7.3)** inside cpanel for my subdomain.

Must give all the previlege to the selected database user.

It worked for me.

Answer 3

An emergency Release of MariaDB 10.5.8, 10.4.17, 10.3.27, and 10.2.36 is now available that was released to specifically solve this protocol incompatibility in old PHP versions and PDO.

Answer 4

Found the solution. Don't know if it's permanent or temporary:

'mysql' => [
            'driver' => 'mysql',
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8mb4',
            'collation' => 'utf8mb4_unicode_ci',
            'prefix' => '',
            'strict' => false,
            'engine' => null,
            **'options'   => [PDO::ATTR_EMULATE_PREPARES => true]**
        ],

make sure that

'options' => [PDO::ATTR_EMULATE_PREPARES => true]

exist on mysql connection.

Answer 5

Also ran into this issue after mariadb updated overnight. Downgrading mariadb fixed the issue for me.

https://support.cpanel.net/hc/en-us/articles/360056772334

Answer 6

What worked for me was to upgrade PHP version on the subdomain from 7.2 to 7.3. I did not change anything in the database configuration as has been suggested in some answers.