@Dmehus reported an issue declining a wiki request:
I saw a 1983 entries in the log saying "Redis server error" on mw6 alone
Example:
2020-07-20 12:44:13 mw6 metawiki: [6e724fc4e36bcfc852763030] /wiki/Special:RequestWikiQueue/13281 JobQueueError from line 778 of /srv/mediawiki/w/includes/jobqueue/JobQueueRedis.php: Redis server error: Could not insert 1 EchoNotificationDeleteJob job(s).
Checking the redis log gives:
2020-07-20 12:47:59 mw6 {something}wiki: Lua script error on server "51.89.160.135:6379": ERR Error running script (call to f_2aac70021ade78213b297e3e8316fa24f82d2897): @user_script:19: @user_script: 19: -MISCONF Redis is configured to save RDB snapshots, but it is currently not able to persist on disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.