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giuliano108 on Oct 30, 2014 | parent | context | favorite | on: Redis latency spikes and the 99th percentile

Memory fragmentation seems to play a role too. Even if you have (barely) enough free RAM, machines can start swapping and a Redis server in that state is bound to wake you up at night... :(

xxs on Oct 30, 2014 [–]

If you run a server with anything but "swapoff -a" you're doing it wrong. (or even having any swap partition in /etc/fstab). If the server has to swap, get more RAM or scale your stuff out but never swap.

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