Nextcloud Error : redis problem

[joseph]

@Benoit can you just delete the empty redis file ? And maybe temporarily disable redis - https://docs.cloudron.io/apps/#redis ?

[Benoit]

Hello @joseph , I'd like to clarify that I'm running Ubuntu 20.04 with Cloudron 8.2.4. I don't have the option to disable Redis from the 'Services' menu link on the app. Only Turn.

[joseph]

@Benoit nextcloud doesn't have optional redis it seems. So, you can take the redis.rdb from your latest backup (just like you did for config.php) and put it there . this will make the restore logic reimport redis properly.

[joseph]

To be clearer: you would put the dump.rdb in /home/yellowtent/appsdata/<appid>/ directory with filename dump.rdb . It will look like:

root@my /home/yellowtent/appsdata/30c49bfe-8adf-4644-a030-fd95f00f5632 # ls
config.json  data  dump.rdb  postgresqldump

@Benoit sorry, maybe you are not trying to restore at all. just trying to recover a running app already? if that's the case, copy the redis.rdb to /home/yellowtent/platformdata/redis/appid/dump.rdb instead . Then, just toggle the recovery mode

[Benoit]

@joseph The app was working fine until the disk got full. I haven't attempted any restore yet. I only replaced the correct config.php, and all of the app’s files are still there. I do have a dump.rdb file in /home/yellowtent/appsdata/<app_id> that seems corrupted (0 bytes). The one in /home/yellowtent/platformdata/redis/<app_id> is over 30MB, but I'm not sure if it's the same file. I have a backup of the /home/yellowtent/appsdata/<app_id> version from Minio.

[joseph]

@Benoit yes, you can just copy over that 30MB file. The redis is only used for caching, so it's fine if it loses some data.

[Benoit]

@joseph i tried to copy the dump.rdb file from /home/yellowtent/platformdata/redis/<app_id> in /home/yellowtent/appsdata/<app_id> (app was stopped) and it doesn't work... I tried to put the app in recovery mode but it fails too with many message like this : box:services Attempt 6 failed. Will retry: Error waiting for redis-<ID>. Status code: 200 message: process not running

[joseph]

@Benoit I have fixed it up now. I simply deleted the redis dump and restarted redis from Services vivew.

[Benoit]

Thank you, @joseph ! Great! But how were you able to restart Redis? When I tried, I could only put it in recovery mode. I had renamed the file from dump.rdb to dump.rdb.corrupt and then tried restarting Redis, but it didn’t work. I must have missed a step. Thanks again!"

[joseph]

@Benoit don't think I did anything else! redis always starts afresh if the dump file is missing . I just removed the dump file and restarted redis. But next time, I will pay more attention and put this in our docs.