Trying to clone an uncloneable object of class Redis #593
Description
My server log reveals this error, happening quite often. It happens on this route /wp-json/wpml/tm/v1/ate/jobs/download (controled by WPML)
Error·/var/www/html/web/app/object-cache.php at line 2668 "Trying to clone an uncloneable object of class Redis"
Description
The error originates at line 2668 of the object-cache.php file when a clone operation is attempted on a Redis object instance. This typically happens when a class containing a Redis connection property is being cloned, but the Redis object itself cannot be cloned.
Environment
- Plugin version: 2.7.0
- PHP version: 8.3.27
- WordPress version: 6.8.3
The solution is to modify the __clone() method of the class containing the Redis object to either recreate a new Redis connection or set the Redis property to null during cloning. This prevents the attempt to clone the uncloneable Redis object.
public function __clone() {
// Handle Redis object that cannot be cloned
if (isset($this->redis) && $this->redis instanceof Redis) {
// Either create a new connection
$this->redis = new Redis();
if ($this->connected) {
$this->redis->connect($this->server, $this->port, $this->timeout);
// If authentication was used, authenticate the new connection
if (!empty($this->password)) {
$this->redis->auth($this->password);
}
// Select the same database
if (isset($this->database)) {
$this->redis->select($this->database);
}
}
// Or alternatively, set to null and reconnect when needed
// $this->redis = null;
// $this->connected = false;
}
}