Redis went away

[DanS2]

Hi,

I just woke up to see my sites loading very slow and noticed Redis went away errors.
Server admins say, it used up all allocated memory and crashed.

Any idea how this can happen? Wrong settings?

We have set redis already to 256M last week.

[admin]

Looks like your sites consume more then 256 mb of cache, try to adjust settings or use another cache engine