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Heroku had 45 minutes of downtime in August, 28 in September, and 45 in October so far. (Source: http://groups.google.com/group/heroku/browse_thread/thread/fc45

by chanks 16y ago

Heroku had 45 minutes of downtime in August, 28 in September, and 45 in October so far. (Source: http://groups.google.com/group/heroku/browse_thread/thread/fc45c0b5d2a363e http://groups.google.com/group/heroku/browse_thread/thread/f...) That's 99.90%, 99.94%, and 99.88% (for the month so far), or simply 99.91% for the entire period. So, what would you consider "rock-solid"? Personally, I'll echo what was said in the other thread - 99.91% is much better than what I could accomplish on my own, so I'll continue to trust my business to them.

qeorge 16y ago
They had over an hour of downtime yesterday alone, one 8m outage and one 1h15m outage. (Source: http://status.heroku.com http://status.heroku.com) Regardless, 99.9% is really not special or even acceptable from a high dollar host like Heroku. Cheap shared hosts like HostGator can give you 99.9%. I'm pulling for them, but they've got some work to do.
- joevandyk 16y ago
  "cheap shared hosts" don't provide you with the same sort of infrastructure that heroku gives you.
  - qeorge 16y ago
    Of course, my point was that 99.9% is expected on even the cheapest setups. Premium hosting like Heroku should at least be able to deliver comparable uptime to a cheap shared host like HostGator. However, Heroku appears to have no SLA, so its a moot point anyway.
- tpz 16y ago
  Agreed. I am happy with Heroku so far (I am pre-launch so the effect hasn't been great), and intend to stick with them for at least a while (I might have most of two decades as a dev in this business, but zero of those are as a sysadmin), but 45 minutes is low: I may be showing 48^ errors in my per-minute checks but those errors occurred in at least^ nine separate blocks across an eleven hour window. In other words, we are probably looking at around ten hours of issues, even if not outright outage. ^ I disabled the checks at times because it was just a waste, so the true stats are likely worse.
smackfu 16y ago
I think it illustrates more that people don't realize what 99.9% actually is. Being down for an hour during a working day is a huge deal to most businesses, but they blithely think 99.9% is awesome availability.
wuputah 16y ago
The gold standard of availability is generally "four nines" - 99.99%. To me: 99.5% (or less) = unacceptable 99.9% = average 99.99% = exceptional 0.5% downtime = 216 mins/month (almost an hour a week!) 0.1% downtime = 43.2 mins/month 0.01% = 4.32 mins/month Getting to that last level is certainly very hard, I hope Heroku will get there, but the service is relatively new, fairly cutting edge, under active development, etc. I would not entirely expect them to reach "four nines", but I hope it is their goal.

by chanks 16y ago

qeorge 16y ago

They had over an hour of downtime yesterday alone, one 8m outage and one 1h15m outage. (Source: http://status.heroku.com http://status.heroku.com) Regardless, 99.9% is really not special or even acceptable from a high dollar host like Heroku. Cheap shared hosts like HostGator can give you 99.9%. I'm pulling for them, but they've got some work to do.

joevandyk 16y ago
"cheap shared hosts" don't provide you with the same sort of infrastructure that heroku gives you.
- qeorge 16y ago
  Of course, my point was that 99.9% is expected on even the cheapest setups. Premium hosting like Heroku should at least be able to deliver comparable uptime to a cheap shared host like HostGator. However, Heroku appears to have no SLA, so its a moot point anyway.
tpz 16y ago
Agreed. I am happy with Heroku so far (I am pre-launch so the effect hasn't been great), and intend to stick with them for at least a while (I might have most of two decades as a dev in this business, but zero of those are as a sysadmin), but 45 minutes is low: I may be showing 48^ errors in my per-minute checks but those errors occurred in at least^ nine separate blocks across an eleven hour window. In other words, we are probably looking at around ten hours of issues, even if not outright outage. ^ I disabled the checks at times because it was just a waste, so the true stats are likely worse.

smackfu 16y ago

I think it illustrates more that people don't realize what 99.9% actually is. Being down for an hour during a working day is a huge deal to most businesses, but they blithely think 99.9% is awesome availability.

wuputah 16y ago

The gold standard of availability is generally "four nines" - 99.99%. To me: 99.5% (or less) = unacceptable 99.9% = average 99.99% = exceptional 0.5% downtime = 216 mins/month (almost an hour a week!) 0.1% downtime = 43.2 mins/month 0.01% = 4.32 mins/month Getting to that last level is certainly very hard, I hope Heroku will get there, but the service is relatively new, fairly cutting edge, under active development, etc. I would not entirely expect them to reach "four nines", but I hope it is their goal.