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AWS 提供 Windows 上的 Deep Learning AMI

有一些 Windows 上的東西就可以直接開起來跑了:「Announcing New AWS Deep Learning AMI for Microsoft Windows」。

目前支援 2012 R2 與 2016:

Amazon Web Services now offers an AWS Deep Learning AMI for Microsoft Windows Server 2012 R2 and 2016.

然後 driver 與常用的東西都包進去了:

The AMIs also include popular deep learning frameworks such as Apache MXNet, Caffe and Tensorflow, as well as packages that enable easy integration with AWS, including launch configuration tools and many popular AWS libraries and tools. The AMIs come prepackaged with Nvidia CUDA 9, cuDNN 7, and Nvidia 385.54 drivers, and contain the Anaconda platform (supports Python versions 2.7 and 3.5).

Amazon EC2 推出 T2 Unlimited,可以付費超量使用 CPU

Amazon EC2t2 系列的機器上推出 T2 Unlimited:「T2 Unlimited – Going Beyond the Burst with High Performance」。

這不是新的機種,而是現有的機器上可以超量使用 CPU credit,AWS 會另外收費。

新開的機器與已經開的機器都可以打開:

us-east-1 來算,其實相當便宜,看不出什麼 penalty fee:t2.micro 的 CPU credit 是 10% baseline,每小時單價是 $0.0116,所以先有個 100% 數字是 $0.116 的概念 (如果所有東西都是十倍)。

us-east-1 的 T2 Unlimited 是 $0.05 vCPU-hour,這樣看起來其實不賴?風險應該是在於不保證可以拿到多的 CPU resource...

可能要重新算一下 c4c5 的使用方式了...

另外雖然文章後面寫了一大串,但對照 region 表後,看起來是所有的區域都支援了:(美國政府的 region 除外)

You can launch T2 Unlimited instances today in the US East (Northern Virginia), US East (Ohio), US West (Northern California), US West (Oregon), Canada (Central), South America (São Paulo), Asia Pacific (Singapore), Asia Pacific (Sydney), Asia Pacific (Tokyo), Asia Pacific (Mumbai), Asia Pacific (Seoul), EU (Frankfurt), EU (Ireland), and EU (London) Regions today.

Amazon EC2 再推出兩款新機種:M5 與 H1

Amazon EC2 的新機種發表:「M5 – The Next Generation of General-Purpose EC2 Instances」、「H1 Instances – Fast, Dense Storage for Big Data Applications」。

M5M4 的後續機種 (General Purpose),所以就沒什麼特別好講的了... H1 則是與 D2 接近,而且也應該算是後繼的機種 (Dense Storage),看了看內容感覺只是個升級 (雖然給他一個新的 family type),所以也沒什麼好講...

然後支援的地區都很少...

M5 三區:

You can launch M5 instances today in the US East (Northern Virginia), US West (Oregon), and EU (Ireland) Regions in On-Demand and Spot form (Reserved Instances are also available), with additional Regions in the works.

H1 四區:

H1 instances are available today in the US East (Northern Virginia), US West (Oregon), US East (Ohio), and EU (Ireland) Regions.

產品發表會固定會有的升級 XD

Amazon EC2 推出第一款 Bare Metal 的 Instance

Amazon EC2 直接租整台主機出來了:「Amazon EC2 Bare Metal Instances with Direct Access to Hardware」。

Bare Metal 怎麼翻譯比較好啊?雖然知道是拔掉虛擬化的主機... 裸奔機?

We knew that other customers also had interesting use cases for bare metal hardware and didn’t want to take the performance hit of nested virtualization. They wanted access to the physical resources for applications that take advantage of low-level hardware features such as performance counters and Intel® VT that are not always available or fully supported in virtualized environments, and also for applications intended to run directly on the hardware or licensed and supported for use in non-virtualized environments.

反正這種機器就是要壓榨整台機器的效能,所以不會拿小台機器出來給大家玩。這次推出的是 i3 系列,叫做 i3.metal

Today we are launching a public preview the i3.metal instance, the first in a series of EC2 instances that offer the best of both worlds, allowing the operating system to run directly on the underlying hardware while still providing access to all of the benefits of the cloud. The instance gives you direct access to the processor and other hardware, and has the following specifications:

Processing – Two Intel Xeon E5-2686 v4 processors running at 2.3 GHz, with a total of 36 hyperthreaded cores (72 logical processors).
Memory – 512 GiB.
Storage – 15.2 terabytes of local, SSD-based NVMe storage.
Network – 25 Gbps of ENA-based enhanced networking.

走了十年總算走到這塊了... 不過應該花了不少時間解決各種安全性的問題,像是 network isolation 以及反刷韌體的問題 XD

AWS 推出可以在 Red Hat Enterprise Linux 上跑 Microsoft SQL Server 的 AMI

自從 Microsoft SQL Server 宣佈可以在 Linux 上跑後 (參考「Microsoft SQL Server 出 Linux 版...」),就沒看到什麼 Linux 上跑 SQL Server 的消息了... 結果在這波 AWS 的活動上推出了 RHEL 上跑 SQL Server 的消息:「Amazon EC2 now offers SQL Server 2017 with Red Hat Enterprise Linux 7.4」。

SQL Server 2017 is now available for Amazon EC2 instances running Red Hat Enterprise Linux (RHEL) 7.4 as an Amazon Machine Image (AMI) from the AWS Marketplace. With this release, you can now launch RHEL instances on-demand using SQL Server 2017 Enterprise License Included AMIs without having to bring your own license. SQL Server 2017 on RHEL 7.4 AMI is available in all public AWS regions starting today.

這個消息看到的時候嚇了一跳...

EC2 的 X1e 推出更小台的機種

本來 EC2x1e 家族只有 x1e.32xlarge,現在拆小拿出來租了:「Amazon EC2 Update – X1e Instances in Five More Sizes and a Stronger SLA」。

這次算是補足中間的缺口,因為先前的洞有點大:r4.16xlarge 是 488GB RAM,而往上就變成 x1e.32xlarge 的 3904GB,中間都沒有其他選擇可以用。這次 x1e.8xlarge (976GB) 與 x1e.16xlarge (1952GB) 算是補上了這邊的缺口,拿來跑需要大量記憶體,但還不需要到 4TB RAM 等級的程式...

AWS 主動提高 Amazon EC2 與 Amazon EBS 的 SLA

AWS 主動提高 Amazon EC2Amazon EBSSLA:「Announcing an increased monthly service commitment for Amazon EC2」。

Amazon EC2 is announcing an increase to the monthly service commitment in the EC2 Service Level Agreement (“SLA”), for both EC2 and EBS, to 99.99%. This increased commitment is the result of continuous investment in our infrastructure and quality of service. This change is effective immediately in all regions, and is available to all EC2 customers.

之前是 99.95% monthly (參考前幾天的頁面:「Amazon EC2 SLA」),現在拉到 99.99% 了。第一階的賠償條件也從 99.95%~99% 改成 99.99%~99% 了 (賠 10%)。

Amazon EC2 的 C5 改跑 KVM

前幾天提到的「Amazon EC2 的 C5 家族...」講到 Amazon EC2 推出 C5 系列帶來的效能與價錢的提昇,後來在 The Register 上看到「AWS adopts home-brewed KVM as new hypervisor」這邊提到更多東西,而且有些還頗有趣的...

首先是 Amazon EC2 FAQs 裡面就有提到的,C5 跑的是 KVM,而不像以前是以 Xen 為底:

Q. What is the underlying hypervisor on C5 instances?
C5 instances use a new EC2 hypervisor that is based on core KVM technology.

另外一點比較有疑慮,是 The Register 提到 IntelAmazon 都發出新聞稿,說明 C5 是使用客製化版本的 Intel 處理器,不過看完後讀不出這個感覺...:「Intel Xeon Scalable Processors Supercharge Amazon Web Services’ Most Powerful Compute-Optimized Instances」、「AWS Announces Availability of C5 Instances for Amazon EC2」。

不過先不管這個... 本來 AWS 都一直圍繞在 Xen 上,這次切去 KVM 是個很值得關注的決策,可以找機會問問看為什麼要這樣換。

AWS PrivateLink

AWS 計畫把先前設計的 VPC Endpoint 都併到 AWS PrivateLink 裡,統一管理:「New – AWS PrivateLink for AWS Services: Kinesis, Service Catalog, EC2 Systems Manager, Amazon EC2 APIs, and ELB APIs in your VPC」。

Today we are announcing AWS PrivateLink, the newest generation of VPC Endpoints which is designed for customers to access AWS services in a highly available and scalable manner, while keeping all the traffic within the AWS network. Kinesis, Service Catalog, Amazon EC2, EC2 Systems Manager (SSM), and Elastic Load Balancing (ELB) APIs are now available to use inside your VPC, with support for more services coming soon such as Key Management Service (KMS) and Amazon Cloudwatch.

這樣就不用弄 proxy server 然後在上面管一堆 policy 了... (先不講自己搞 HA 的麻煩事,光是有些程式還得 patch 才能支援 proxy 就會想翻桌了 XD)

在 CLI 下開關以及查詢 EC2 的狀態...

有時候需要開 Ubuntu 測試東西,會在 AWS 上開 EC2 起來測試,但開 console 太麻煩了,寫幾個 function 丟進 shell script 裡面比較乾脆。其中查詢 Ubuntu AMI 的程式出自「How do I know what Ubuntu AMI to launch on EC2?」這邊。

ec2.ls() 裡,我的 jq 版本比較舊,不過不影響我的 copy & paste,所以就沒有 hack 他了。新版的應該可以多加上 | @tsv 變成 tab 隔開 (沒測過,查資料時查到而已)。

ec2.run() 裡,我這邊是先到 console 上查出 security group 與 subnet 的 id,然後這邊 hard code 進去。我的預設是開 t2.medium,臨時要指定的話就 ec2.run t2.nano 就可以改開 t2.nano 了,不過要注意的是,這邊程式在查詢時的條件是 hvm:ebs,換的時候要注意 image 相容性...

# AWS-related
function ec2.ls() {
    aws ec2 describe-instances | \
        jq -c -M '.Reservations[] | .Instances[] | [.InstanceId, .InstanceType, .PublicIpAddress]'
}

function ec2.rm() {
    local INSTANCE_ID=${1:i-xxxxxxxxxxxxxxxxx}
    aws ec2 terminate-instances --instance-id ${INSTANCE_ID}
}

function ec2.run() {
    local INSTANCE_TYPE=${1:-t2.medium}
    aws ec2 run-instances --image-id $(ec2.ubuntu_ami()) --key-name gslin --security-group-ids sg-xxxxxxxx --instance-type ${INSTANCE_TYPE} --subnet-id subnet-xxxxxxxx
}

function ec2.ubuntu_ami() {
    curl -s "https://cloud-images.ubuntu.com/locator/ec2/releasesTable" | \
    sed '$x;$G;/\(.*\),/!H;//!{$!d};$!x;$s//\1/;s/^\n//' | \
    jq -c '.aaData[] | select(contains(["16.04", "us-east-1", "hvm:ebs"]))' | \
    grep -o 'ami-[a-z0-9]\+' | \
    head -1
}

這種工具自己用的順手比較重要,要什麼功能自己改自己加...

話說 Ubuntu 網站上的 JSON 居然吐出 malformed data (trailing comma),這是自己 printf() 之類硬幹出來的嗎... XD

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