Tag Archives: load

AWS 推出將 Classic Load Balancer 轉換成 Application Load Balancer 或 Network Load Balancer 的功能

AWS 應該是希望大家趕快把能換的 ELB 都換成新的 ALB 與 NLB,所以推出這個功能:「New One-step Migration Wizard to Migrate a Classic Load Balancer」。 Today, AWS announced the ability to migrate from a Classic Load Balancer to an Application Load Balancer or a Network Load Balancer in one … Continue reading

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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 … Continue reading

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大型 WordPress 站台會用到的 LudicrousDB (以及 HyperDB)

最近收到 HyperDB 的 mailing list 信件 (開頭是「[HyperDB] How can I set up HyperDB with latest version.」這封),有人提到 HyperDB 很久沒更新了... 結果在信理看到有人回了「stuttter/ludicrousdb」這個專案: LudicrousDB is an advanced database interface for WordPress that supports replication, failover, load balancing, & partitioning 兩個專案都是抽換掉 WordPress 在處理 database 的 … Continue reading

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AWS NLB 也可以指定 IP address 當後端了

月初的時候 AWS ALB 支援 IP address 當後端 (AWS ALB 可以設定 IP address 當作後端伺服器了),然後推出 AWS NLB (AWS 推出新的 Load Balancer:NLB (Network Load Balancer)),然後這個功能也被做到 NLB 上了:「Elastic Load Balancing: Network Load Balancer now supports load balancing to IP addresses as targets for AWS … Continue reading

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AWS 推出新的 Load Balancer:NLB (Network Load Balancer)

從一開始推出的 ELB (Elastic Load Balancer),到 ALB (Application),現在則推出了 NLB (Network):「New Network Load Balancer – Effortless Scaling to Millions of Requests per Second」。 有這些特性: Static IP Addresses Zonality Source Address Preservation Long-running Connections Failover 雖然不能確定 AWS 用的技術是什麼,但這裡面有好幾個很明顯就是 DSR (Direct Server Return) 架構的特性 … Continue reading

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在 AWS 的 NGINX Plus

主要是看到「Quick Start Update: Deploy NGINX Plus on the AWS Cloud」這篇才知道在 AWS Marketplace 上有「NGINX Plus - Amazon Linux AMI (HVM)」可以用,而且有三十天試用期可以使用: 30 Day Free Trial Available - NGINX Plus is a high performance load balancer, edge cache and origin server for web … Continue reading

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AWS ALB 可以設定 IP address 當作後端伺服器了

AWS ALB 推出直接設定 IP address 當作後端伺服器的功能:「New – Application Load Balancing via IP Address to AWS & On-Premises Resources」。 ip – Targets are registered as IP addresses. You can use any IPv4 address from the load balancer’s VPC CIDR for targets … Continue reading

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nginx 的 mirror 功能

在 nginx 1.13.4 出的新功能,ngx_http_mirror_module: The ngx_http_mirror_module module (1.13.4) implements mirroring of an original request by creating background mirror subrequests. Responses to mirror subrequests are ignored. 範例其實就講的還蠻清楚的: location / { mirror /mirror; proxy_pass http://backend; } location /mirror { internal; proxy_pass http://test_backend$request_uri; … Continue reading

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InnoDB redo log 大小對效能的影響

在「Benchmark(et)ing with InnoDB redo log size」這邊看到在討論 InnoDB redo log 的大小對效能的影響 (也就是 innodb_log_file_size 與 innodb_log_files_in_group)。 開頭就有先提到重點,在新版 MySQL 裡,幾乎所有的情況比較大的 redo log 有比較好的效能 (平均值): tl;dr - conclusions specific to my test A larger redo log improves throughput A larger redo log helps more … Continue reading

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CodeDeploy 跟 ELB/ALB 整合了...

看到 CodeDeploy 跟 ELB/ALB 整合的消息:「AWS CodeDeploy now integrates with Elastic Load Balancer」。 不過看同事在「AWS 替 CodeDeploy 加入 Load balancer 的功能」這邊提到的效能問題,看起來頗慘... 至少是個整合後的方法... 也許之後會改善吧。

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