[erlang-questions] user process suspended
Wed Sep 23 09:49:48 CEST 2015
>> What do you mean with IO stuff stalling? Temporarily or permanently?
>> We do send quite some io, but the systems stops to io when this
>> happens and never recovers (we need to restart the node).
> It's been a while, but I do believe it was temporary for us. Like the EC2
> instances output would drop from say 10MB/s capacity down to 150kb/s for
> blips of anywhere between 2 and 10 minutes. The degradation in performance
> all but stalled everything we had that kept expecting multiple MB/s of
> output to be possible.
Ok, I think that is different. Once the problem starts to manifest the
nodes are taken out of traffic by the load balancer, but they never
recover. And processes are not busy doing anything.
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