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No, that's not that actually. On google cloud platform your virtual machine usually gets migrated between machines without any downtime. Aren't you talking ab
by cube2222 9y ago
No, that's not that actually.
On google cloud platform your virtual machine usually gets migrated between machines without any downtime.
Aren't you talking about preemptible instances?
- butwhythough 9y agoOne would think right? We are not running with preemptible instances. Yes I have verified all the scheduling flags for our instances. Preemptible: false OnMaintenance: MIGRATE (only other option is terminate which happens far too often for any sizable shop to use and you lose the 60 second warning) Key word being usually. Even if it's not a complete failure we have seen all sorts of fun from packet loss/latency spikes to seg faults. I have no doubt things will improve but right now pd, network, and live migrations are pain points for our group in gce.
- sulam 9y agoFull disclosure: evaluating GCP pretty heavily -- and can support what you're saying from conversations with existing customers (multiple). Live migrations cause both latency/cpu slowdowns (brownouts) and actual (short) interruptions (blackouts). This isn't even a secret, it's fairly well-documented: https://cloud.google.com/compute/docs/instances/live-migration https://cloud.google.com/compute/docs/instances/live-migrati...