The x1e.32xlarge instances can be launched in On-Demand and Reserved Instance form via the AWS Management Console, AWS Command Line Interface (CLI), AWS SDKs, and AWS Marketplace in the US East (Northern Virginia), US West (Oregon), EU (Ireland), and Asia Pacific (Tokyo) Regions.
The immutable HTTP response Cache-Control extension allows servers to identify resources that will not be updated during their freshness lifetime. This ensures that a client never needs to revalidate a cached fresh resource to be certain it has not been modified.
Amazon EC2 Spot now allows Amazon EBS-backed instances to be stopped in the event of interruption, instead of being terminated when capacity is no longer available at your preferred price. Spot can then fulfill your request by restarting instances from a stopped state when capacity is available within your price and time requirements.
用法是把 Spot Instance 的關機設定設為 Stop:
To use this new feature, choose “stop” instead of “terminate” as the interruption behavior when submitting a persistent Spot request. When you choose “stop”, Spot will shut down your instance upon interruption.
恢復的時候就會儘量保持一樣地開回來 (連 instance id 都相同):
When capacity is available again within your price and time requirements, Spot will restart your instance. Upon restart, the EBS root device is restored from its prior state, previously attached data volumes are reattached, and the instance retains its instance ID.
Consequently, HHVM will not aim to target PHP7. The HHVM team believes that we have a clear path toward making Hack a fantastic language for web development, untethered from its PHP origins.
And because a few people have asked me this recently, while HHVM usage is not included above in the graph it is at 0.36% which is a third of PHP 5.3 usage and really hardly significant. I personally think it's fine to support it still in libraries if it just works, or if the fixes involved are minor. If not then it's probably not worth the time investment.
Comment 的地方有註明這是扣掉 CI 的量:
@ocramius: These numbers ignore Travis CI and other CI systems that set the "CI" env var in their workers. Without excluding those HHVM is around 0.95% so it's still low but those .36% is probably actual usage.
Since the announcement, we have been focusing on the impact of disabling the diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1 key exchanges for SSH. As of last week, we have enabled diffie-hellman-group-exchange-sha256. This key exchange method is widely supported and will allow most legacy clients to seamlessly transition away from diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1.
This is a very small percentage of traffic, but we would like to see if we can reduce the incompatible traffic percentage even further before disabling support for the older key exchange algorithms on February 1, 2018.
10/2 開始改變 (而不是 10/1),低消一分鐘,Windows 機種以及需要額外收費的 Linux 機種不在範圍內:
This change is effective in all AWS Regions and will be effective October 2, for all Linux instances that are newly launched or already running. Per-second billing is not currently applicable to instances running Microsoft Windows or Linux distributions that have a separate hourly charge. There is a 1 minute minimum charge per-instance.
然後 Spot 與買 RI 後也是一樣以秒計價:
List prices and Spot Market prices are still listed on a per-hour basis, but bills are calculated down to the second, as is Reserved Instance usage (you can launch, use, and terminate multiple instances within an hour and get the Reserved Instance Benefit for all of the instances).
這次改變的影響很巨大。馬上可以想到幾個情境...
第一個是對於實踐 Release early, release often 的團隊來說,如果設計成每 deploy 一次就建一個新的 AMI (最乾淨的作法),再開新機器換掉的話,成本就會增加不少。所以對於這樣的團隊,就會偏好朝著替換現有目錄內的東西後重啟...