3 ms·
Unsure if this is related, but a few weeks back AWS paravirtualized instances were experiencing extreme clock skew and suffering frequent restarts. Our clocks
by eob 9y ago
Unsure if this is related, but a few weeks back AWS paravirtualized instances were experiencing extreme clock skew and suffering frequent restarts. Our clocks were skewing about 8 seconds per hour, and the instances were getting swapped out at least once per day, sometimes more.
Switching to a HVM instance type resolved the problems.
- kainosnoema 9y agoIt's related. This was during the early versions of the security patch, which was causing performance and clock skew issues for PV instances (https://twitter.com/kainosnoema/status/941816042103324672 https://twitter.com/kainosnoema/status/941816042103324672). Since then AWS has mostly resolved these, but we've moved all our instances to HVM AMIs as well since they're apparently not affected.