[horde] CalDAV synchronize errors and Redis error

[Ruud Baart]

No, my fix does not work reliable, still errors

    HORDE 2026-06-11T14:12:28+02:00 warning: [kronolith] PHP ERROR: Array to string conversion [pid 714888 on line 69 of "/home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php"]
    HORDE 2026-06-11T14:12:28+02:00 warning: [kronolith] PHP ERROR: Trying to access array offset on null [pid 714888 on line 76 of "/home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php"]

also

    HORDE 2026-06-11T12:15:36+00:00 warning: PHP ERROR: Trying to access array offset on null [pid 717739 on line 72 of "/home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php"]

Sorry.


I think it is typical a php 8.4 error:


Changing vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php line 69:

from:

$res = $this->_hash->get($query);

to:

$res = $this->_hash->get((string) $query);

And lines 87+88

from:

$this->_hash->set($this->_getKey($key), $data, $opts);
$this->_hash->set($this->_getKey($key, true), time(), $opts);

to:

  $this->_hash->set($this->_getKey($key), $data, (int) $opts);
  $this->_hash->set($this->_getKey($key, true), time(), (int) $opts);

Solves these problems


Op 2026-06-11 om 10:09 schreef Ruud Baart:
> After the latest updates of H6 I can't synchronize tasks or agenda. 
> Probably because of error in redis. These are the errors logged:
>
> Synchronize errors:
>
>    026/06/11 09:06:27 [error] 680112#680112: *12 readv() failed (104: 
> Connection reset by peer) while reading upstream, client: 
> 37.66.54.147, server: aa.bb.cc, request: "PROPFIND 
> /horde/rpc/calendars/user%40domain.com/tasks~Z1H0u8DzYMq3V0_B3t6AGY4/ 
> HTTP/2.0", upstream: "fastcgi://unix:/run/php/php8.4-fpm.sock:", host: 
> "aa.bb.cc"
>    2026/06/11 09:06:49 [error] 680112#680112: *12 readv() failed (104: 
> Connection reset by peer) while reading upstream, client: 
> 37.66.54.147, server: aa.bb.cc, request: "PROPFIND 
> /horde/rpc/calendars/user%40domain.com/calendar~gLuI9IBq20HJjwKbcMgP4xZ/ 
> HTTP/2.0", upstream: "fastcgi://unix:/run/php/php8.4-fpm.sock:", host: 
> "aa.bb.cc"
>
>
> Redis error:
>
>    HORDE 2026-06-11T07:08:12+00:00 emergency: TypeError: 
> Horde\HashTable\Driver\Redis::get(): Argument #1 ($key) must be of 
> type string, array given, called in 
> /home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php 
> on line 69 and defined in 
> /home/websites/aa.bb.cc/horde/vendor/horde/hashtable/src/Driver/Redis.php:82
>    Stack trace:
>    #0 
> /home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Hashtable.php(69): 
> Horde\HashTable\Driver\Redis->get()
>    #1 
> /home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache.php(113): 
> Horde_Cache_Storage_Hashtable->get()
>    #2 
> /home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache/Storage/Stack.php(65): 
> Horde_Cache->get()
>    #3 
> /home/websites/aa.bb.cc/horde/vendor/horde/cache/lib/Horde/Cache.php(113): 
> Horde_Cache_Storage_Stack->get()
>    #4 
> /home/websites/aa.bb.cc/horde/vendor/horde/perms/lib/Horde/Perms/Sql.php(315): 
> Horde_Cache->get()
>    #5 
> /home/websites/aa.bb.cc/horde/vendor/horde/core/lib/Horde/Registry.php(1853): 
> Horde_Perms_Sql->exists()
>    #6 
> /home/websites/aa.bb.cc/horde/vendor/horde/core/lib/Horde/Registry.php(980): 
> Horde_Registry->hasPermission()
>    #7 
> /home/websites/aa.bb.cc/horde/vendor/horde/core/lib/Horde/Core/Notification/Handler.php(101): 
> Horde_Registry->listApps()
>    #8 
> /home/websites/aa.bb.cc/horde/vendor/horde/core/lib/Horde/Registry.php(644): 
> Horde_Core_Notification_Handler->attachAllAppHandlers()
>    #9 
> /home/websites/aa.bb.cc/horde/vendor/horde/core/lib/Horde/Registry.php(390): 
> Horde_Registry->__construct()
>    #10 /home/websites/aa.bb.cc/horde/vendor/horde/horde/index.php(20): 
> Horde_Registry::appInit()
>    #11 /home/websites/aa.bb.cc/horde/web/horde/index.php(3): 
> require_once('...')
>    #12 /home/websites/aa.bb.cc/horde/web/index.php(3): require_once('...')
>    #13 {main} [pid 680158 on line 509 of 
> "/home/websites/aa.bb.cc/horde/vendor/horde/imp/lib/Application.php"]
>
-- 

Cordialement,

*

R.J. Baart


*

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