6 ms·
It has been quite a while, wondering how many 9s are dropped. 365 day * 24 * 0.0001 is roughly 8 hours, so it already lost the 99.99% status.
by markus_zhang 1y ago
It has been quite a while, wondering how many 9s are dropped.
365 day * 24 * 0.0001 is roughly 8 hours, so it already lost the 99.99% status.
- codeduck 1y agoI'm sure they'll find some way to weasel out of this.
- alex_young 1y agoIt's not down time, it's degradation. No outage, just degradation of a fraction[0] of the resources. [0] Fraction is ~ 1
- indoordin0saur 1y agoThis 100% seems to be what they're saying. I have not been able to get a single Airflow task to run since 7 hours ago. Being able to query Redshift only recently came back online. Despite this all their messaging is that the downtime was limited to some brief period early this morning and things have been "coming back online". Total lie, it's been completely down for the entire business day here on the east coast.
- randomname11 1y agoWe continue to see early signs of progress!
- 8organicbits 1y agoCheck the terms of your contract. The public terms often only offer partial service credit refunds, if you ask for it, via a support request.
- Keyframe 1y agoIt doesn't count. It's not downtime, it's unscheduled maintenance event.
- DevelopingElk 1y agoFor DynamoDB, I'm not sure but I think its covered. https://aws.amazon.com/dynamodb/sla/ https://aws.amazon.com/dynamodb/sla/. "An "Error" is any Request that returns a 500 or 503 error code, as described in DynamoDB". There were tons of 5XX errors. In addition, this calculation uses percentage of successful requests, so even partial degradation counts against the SLA. From reading the EC2 SLA I don't think this is covered. https://aws.amazon.com/compute/sla/ https://aws.amazon.com/compute/sla/ The reason is the SLA says "For the Instance-Level SLA, your Single EC2 Instance has no external connectivity.". Instances that were already created kept working, so this isn't covered. The SLA doesn't cover creation of new instances.
- hinkley 1y agoIf you aren’t making $10 for every dollar you pay Amazon you need to look at your business model. The refund they give you isn’t going to dent lost revenue.
- rdtsc 1y ago9s don’t have to drop if you increase the time period! “We still guarantee the same 9s just over 3450 years now”.
- echelon 1y agoCommon SLA windows are hour, day, week, month, quarter, and year. They're out of SLA for all of those now. When your SLA holds within a joke SLA window, you know you goofed. "Five nines, but you didn't say which nines. 89.9999...", etc.
- SlightlyLeftPad 1y agoThese are typically calculated system-wide, so if you include all regions, technically only a fraction of customers are impacted.
- alkhimey 1y agoCustomers in all regions were affected…
- prmoustache 1y agoIndirectly yes but not directly. Our only impact was some atlassian tools.
- hamburglar 1y agoI prefer shooting for eight eights.
- decimalenough 1y agoYou mean nine fives.
- captainkrtek 1y agoI shoot for 9 fives of availability.
- Veserv 1y agoYou added a zero. There are ~8760 hours per year, so 8 hours is ~1 in 1000, 99.9%.
- markus_zhang 1y agoOh you are right!
- nine_k 1y agoAn outage like this does not happen every year, The last big outage happened in December 2021, roughly 3 years 10 month = 46 months ago. The duration of the outage in relation to that uptime is (8 h / 33602 h) * 100% = 0.024%, so the uptime is 99.976%, slightly worse than 99.99%, but clearly better than 99.90%. They used to be five nines, and people used to say that it's not worth the while to prepare for an outage. With less than four nines, the perception might shift, but likely not enough to induce a mass migration to outage-resistant designs.
- hvb2 1y agoIt's a single region? I don't think anyone would quote availability as availability in every region I'm in? While this is their most important region, there's a lot of clients that are probably unaffected if they're not in use1. They COULD be affected even if they don't have anything there because of the AWS services relying on it. I'm just saying that most customers that are multi region should have their east region out and are just humming along.
- reactordev 1y agoIt’s THE region. All of AWS operates out of it. All other regions bow before it. Even the government is there.
- idontwantthis 1y ago"The Cloud" is just a computer that you don't own that's located in Reston, VA.
- reactordev 1y agoFacts.
- vasco 1y ago> All of AWS operates out of it. I don't think this is true anymore. In the early days bad enough outages in us-east-1 would bring down everything because some metadata / control pane stuff was there, I remember getting affected while in other regions, but there's been many years since this has happened. Today for example no issues. I just avoid us-east-1 and everyone else should to. It's their worst region by far in terms of reliability because they launch all the new stuff there and are always messing it up.
- reactordev 1y agotell me it isn't true while telling me there isn't an outage across AWS because us-east-1 is down...
- oxfordmale 1y agoBut is is a partial outage only, so it doesn't count. If you retry a million times everything still works /s
- beachy 1y agoI haven't done any RFP responses for a while but this question always used to make me furious. Our competitors (some of who had had major incidents in the past) claimed 99.99% availability or more, knowing they would never have to prove it, and knowing they were actually 100% until the day they weren't. We were more honest, and it probably cost us at least once in not getting business.
- d1sxeyes 1y agoAn SLA is a commitment, and an RFP is a business document, not a technical one. As an MSP, you don’t think in terms of “what’s our performance”, you think of “what’s the business value”. If you as a customer ask for 5 9s per month, with service credit of 10% of at-risk fees for missing on a deal where my GM is 30%, I can just amortise that cost and bake it into my fee.
- hinkley 1y agoWhere were you guys the other day when someone was calling me crazy for trying to make this same sort of argument?
- procaryote 1y agoit's a matter of perspective... 9.9999% is real easy
- dgoldstein0 1y agoOnly if you remember to spend your unavailability budget