[horde] Issue when trying to use admin interface in recent update

[Ralf Lang]

Hello Nels,

I have been investigating this issue.

Q: Is this a real redis or a redis-like product such as KeyDB?
Q: Single redis or a cluster?

The old code fell back from MGET to GET if the server / config didn't
support MGET but our new library is a bit more picky. I will provide a way
to support your scenario but I'd like to learn more about it.

On Thu, May 7, 2026 at 12:16 AM Nels Lindquist <nlindq at maei.ca> wrote:

> On 2026-04-30 8:11 AM, Ralf Lang wrote:
> > Thank you for reporting. I may be a bit slow over the long weekend (may
> 1st
> > traditions) but this will be fixed.
> > test: Hashtable backend tests assume old-style backends · Issue #3 ·
> > horde/Cache <https://github.com/horde/Cache/issues/3>
> >
> > Back story to this:
> >
> > Horde\Cache was modernized before its backend Horde\Hashtable along with
> > its other backend Horde\Memcache.
> >
> > Now Hashtable also got modernized but it seems the tests slipped through.
>
> I seem to be on the opposite end; after fully updating, I'm now unable
> to use the admin interface, which was working fine before.
>
> I'm using redis DHT for some caching and for sessions.
>
> Here's the error:
>
> A fatal error has occurred
> ERR unknown command `MGET`, with args beginning with:
> `hht_version_check.horde.horde`,
> in /var/www/html/horde6/vendor/predis/predis/src/Client.php:435
>
>   1. require_once() /var/www/html/horde6/web/horde/admin/config/index.php:3
>   2. Horde\Core\Service\VersionCheck\VersionService->checkAllCached()
> /var/www/html/horde6/vendor/horde/horde/admin/config/index.php:97
>   3.
> Horde\Core\Service\VersionCheck\PackagistAvailableSource->getAvailableVersions()
>
>
> /var/www/html/horde6/vendor/horde/core/src/Service/VersionCheck/VersionService.php:82
>   4.
> Horde\Core\Service\VersionCheck\PackagistAvailableSource->getPackageInfo()
>
> /var/www/html/horde6/vendor/horde/core/src/Service/VersionCheck/PackagistAvailableSource.php:70
>   5. Horde\Cache\Cache->get()
>
> /var/www/html/horde6/vendor/horde/core/src/Service/VersionCheck/PackagistAvailableSource.php:86
>   6. Horde\Cache\HashtableStorage->get()
> /var/www/html/horde6/vendor/horde/cache/src/Cache.php:100
>   7. Horde\Cache\HashtableStorage->getWithLifetime()
> /var/www/html/horde6/vendor/horde/cache/src/HashtableStorage.php:66
>   8. Horde\Cache\HashtableStorage->hasWithLifetime()
> /var/www/html/horde6/vendor/horde/cache/src/HashtableStorage.php:139
>   9. Horde\HashTable\Driver\Redis->getMultiple()
> /var/www/html/horde6/vendor/horde/cache/src/HashtableStorage.php:166
> 10. Predis\Client->__call()
> /var/www/html/horde6/vendor/horde/hashtable/src/Driver/Redis.php:112
> 11. Predis\Client->executeCommand()
> /var/www/html/horde6/vendor/predis/predis/src/Client.php:336
> 12. Predis\Client->onErrorResponse()
> /var/www/html/horde6/vendor/predis/predis/src/Client.php:400
>
>
> --
> Nels Lindquist
> nlindq at maei.ca
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