Solved Nextcloud update throws Redis error

[vansens]

Hello,
I am on Nextcloud 22.0.0 package version v4.10.0
Whenever I try to upgrade to 22.1.0 via the Cloudron update mechanism, the app will restart over and over with this error:

Redis cluster config is missing the "seeds" attribute in /app/code/lib/private/RedisFactory.php:86

I found this:
https://help.nextcloud.com/t/redis-cluster-error-without-having-a-cluster/121589
but I have no luck editing the file
lib/private/RedisFactory.php
because the container does not stay up/restarts over and over.

It was also suggested by Cloudron support to go to the file editor in Cloudron and edit the file config/config/php and remove all redis references, but the error still pops up the next time I am trying the upgrade.

Any suggestions would be helpful. Maybe I can somehow export all data from Nextcloud, remove it completely and then install the latest 22.2.23 instead?

Thank you!

[nebulon]

@vansens have you made any further tweaks to the config.php at some point?

For reference, the redis related configs should look something like https://git.cloudron.io/cloudron/nextcloud-app/-/blob/master/start.sh#L100

[girish]

It seems https://github.com/nextcloud/server/issues/28609 is the related bug report. This $isCluster = in_array('redis.cluster', $this->config->getKeys()); seems to have some funny behavior when dot is used.

i.e the array itself has no redis.cluster but there is a redis. It seems the function looks for some subkey or something and decides to return true even if there is no redis: { cluster: xx }. crazy php functions.

[girish]

OK, found the root cause. The config.php contained a spurious 0 => 'NANphp',. When checking the presence of the redis.cluster property in the config, the in_array function can return true when the config contains a 0 property as (int)'redis.cluster' === 0.

https://github.com/nextcloud/server/pull/29906 is the upstream PR.

Solution: remove the spurious 0 => 'NANphp', in config.php using the file manager .