Cannot redeclare JConfig::$session_redis_server_host

[julos08]

Hello All,

Since the last update of Joomla (3.8.3) lot of my websites has a blank page error 500 with in the log :

AH01071: Got error 'PHP message: PHP Fatal error: Cannot redeclare JConfig::$session_redis_server_host in /home/mywebsite/public_html/configuration.php on line 95\n'

Thanks in advance for your support.

[adrimac]

I have this happening to my joomla site after the update to 3.8.3.
Fatal error: Cannot redeclare JConfig::$session_redis_server_host

Anyone have any answers, please?

[sozzled]

See viewtopic.php?f=714&p=3506123

The standard (or "default") value for $session_redis_server_host in the configuration.php file is

Code: Select all

   public $session_redis_server_host = 'localhost';


[mbabker]

This means you have the declaration of that property in your configuration file twice (or possibly more, why I couldn't say but it's there). Remove the extra declarations.

[CactusTom]

I am not sure which lines I should delete.
Any thoughts and guidance?


public $session_memcache_server_host = 'localhost';
public $session_memcache_server_port = '11211';
public $session_memcached_server_host = 'localhost';
public $session_memcached_server_port = '11211';
public $session_redis_server_host = 'localhost';
public $session_redis_server_port = '6379';

[mbabker]

The key is in the error message. "Cannot redeclare JConfig::$session_redis_server_host". This means there are multiple declarations of the $session_redis_server_host property in the file. So you need to delete all the extras until there is only one. If there are any other duplicated properties, those will have to be removed as well.

[ribo]

Check the solution that @mbabker said. Redis works fine in joomla session. Tested.

[daisysmom]

I have the same thing going on with one of my sites.
My error log says this:
[12-Jan-2018 20:59:24 UTC] PHP Fatal error: Cannot redeclare JConfig::$session_redis_server_host in /home/lexalum2/public_html/configuration.php on line 100

I see two mentions of the $session_redis_server_host but neither are on line 100

On Line 100 I see this: public $replytoname = '';

Any and all suggestions are greatly appreciated. Thank you!

[sozzled]

@daisysmom: maybe you miscounted the line numbers?

The real question is this: do you have more than one occurrence of

Code: Select all

    public $session_redis_server_host = 'something';

within the file configuration.php? Yes or no?

... and if you have two occurrences of these things, then delete one of them. That's the answer.

[daisysmom]

Yes, there are two occurrences of public $session_redis_server_host = 'localhost';
I deleted one at a time and saved the file and checked site after each try with no change. Will the change be right away or does it have to propagate?

[ribo]

Yes, there are two occurrences of public $session_redis_server_host = 'localhost';
I deleted one at a time and saved the file and checked site after each try with no change. Will the change be right away or does it have to propagate?

You must have these values for session

Code: Select all

public $session_redis_server_host
   public $session_redis_server_port
   public $session_redis_persist
   public $session_redis_server_auth
   public $session_redis_server_db

If anyone is duplicated please delete it

[CactusTom]

The key is in the error message. "Cannot redeclare JConfig::$session_redis_server_host". This means there are multiple declarations of the $session_redis_server_host property in the file. So you need to delete all the extras until there is only one. If there are any other duplicated properties, those will have to be removed as well.

[daisysmom]

THANK YOU ALL!!
I have a working site again!!
Now, can anyone explain why the configuration file changes mysteriously? Is it a virus or a hack?

Thank you again SO much!!