How To Resolve Redis' `MISCONF` Error
Here's the error:
MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.
It means that Redis is not able to save data on the disk. This error occurs because of BGSAVE being failed. During BGSAVE, Redis forks a child process to save the data on disk.
Redis doesn't need as much memory as the OS thinks it does to write to disk, so may pre-emptively fail the fork.
1 in the
And then, restart the ~sysctl~ process:
sudo sysctl -p /etc/sysctl.conf
Important: Setting the
stop-writes-on-bgsave-error option to
no in Redis doesn't
solve the problem, it just ignores it.