Category Archives: Cloud

StackOverflow 對於多 DNS 商的同步方式...

他們的解法是設計出一套 DSL (Domain Specific Language),然後從 DSL 轉出各 DNS 商的格式:「Introducing DnsControl – “DNS as Code” has Arrived」。 以 stackoverflow.com 來說,可以看到有同時使用 AWS 的 Route 53 與 Google 的 Cloud DNS: ;; ANSWER SECTION: stackoverflow.com. 36458 IN NS ns-cloud-e2.googledomains.com. stackoverflow.com. 36458 IN NS … Continue reading

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Amazon DynamoDB Accelerator (DAX)

DynamoDB 推出的新架構,在系統上幫忙處理 cache:「Amazon DynamoDB Accelerator (DAX) – In-Memory Caching for Read-Intensive Workloads」。 DAX 跟現有的 DynamoDB API 相容: DAX is a fully managed caching service that sits (logically) in front of your DynamoDB tables. It operates in write-through mode, and is … Continue reading

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Cloudflare 推出 SSL 的 SaaS 服務

Cloudflare 把之前需要人力介入的操作,包成 API 直接提供給大家用:「Introducing SSL for SaaS」。 要解決的是「用戶自己的 domain 掛到我的服務上,而且需要 HTTPS」,而 Cloudflare 提供 API 把上面三部跑完,下面的就是 Cloudflare 自己處理 (包括取得用戶的同意):

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以後被盜開機器的機種又多一個了:EC2 F1 Instances with FPGAs

又多了一種可以挖 BitCoin 的 instance type 了,AWS 正式推出 F1 Instance:「EC2 F1 Instances with FPGAs – Now Generally Available」。 目前只有在 us-east-1 有,不過有計畫要推到其他地區: Today we are making the F1 instances generally available in the US East (Northern Virginia) Region, with plans to bring … Continue reading

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AWS Lambda 支援 Python 3.6 了

大家都等很久的需求總算推出來了 (雖然我覺得還好...),AWS Lambda 要支援 Python 3.6 了:「AWS Lambda Supports Python 3.6」。會逐步推上線: You can now develop your AWS Lambda functions using Python 3.6. This feature will become available in all AWS Lambda regions within 24 hours.

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Amazon Redshift 壓縮率的改善

Amazon Redshift 對壓縮率的改善:「Data Compression Improvements in Amazon Redshift Bring Compression Ratios Up to 4x」。 首先是引入了 Zstandard: First, we added support for the Zstandard compression algorithm, which offers a good balance between a high compression ratio and speed in build 1.0.1172. … Continue reading

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ALB (Application Load Balancer) 支援對 Host 的分流了

大概是有時候 cluster 太小,ELB 或是 ALB 的費用反而比 cluster 還貴,再加上 ALB 提供起來算方便,所以就推出這樣的功能了:「New – Host-Based Routing Support for AWS Application Load Balancers」。 現在可以針對 Host 欄位決定導到不同的 cluster 上了: 然後讓 ALB 可以設的 rule 數量增加: As part of today’s launch we are raising the maximum number … Continue reading

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Amazon Aurora 改善 ALTER TABLE 時增加 column 的速度

Amazon Aurora (MySQL) 提昇了增加 column 操作的速度:「Amazon Aurora Supports Fast DDL Operations」,細節可以在「Amazon Aurora Under the Hood: Fast DDL」這邊看到。 這次加速是限制在 nullable 欄位: We’re addressing this mess, starting with the most common DDL operation we’ve seen: adding a nullable column at the end … Continue reading

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HashiCorp 的 Packer 出 1.0 版了

HashiCorp 的 Packer 出 1.0 了:「HashiCorp Packer 1.0」。 在 HashiCorp 推出的一串工具裡面算是比較成熟的產品,就算是先前還在 0.12.x 的版本也已經很穩定。 然後 Logo 改了,居然是用 SVG (可以直接開官網看原始碼),只好用截圖的方式:

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Amazon EC2 上的 Ubuntu 的效能提昇

Ubuntu 跟 AWS 合作,對 AWS 上 EC2 的 kernel 最佳化:「Ubuntu on AWS gets serious performance boost with AWS-tuned kernel」。 透過各界面拉出來的 Ubuntu 16.04 都將會是對 kernel 最佳化過的版本了: As of March 29th, Ubuntu Cloud Images for Amazon have been enabled with the AWS-tuned … Continue reading

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