Recent Comments
- s25g5d4 on Mozilla 的提案「HTTP Immutable Responses」
- EC2 與 EBS 十月開始以秒計費 | Gea-Suan Lin's BLOG on AWS CodeDeploy 支援 BlueGreenDeployment
- Google Chrome 將 .dev 設為 HSTS Preload 名單 | Gea-Suan Lin's BLOG on 在 Google Chrome 連上因 HSTS 而無法連線的網站
- Isaac Kwan on Google Chrome 對 Symantec 全系列憑證的不信任計畫
- Matt Mullenweg 決定對 React 的專利議題投下反對票 | Gea-Suan Lin's BLOG on React 的專利授權議題
Archives
- September 2017 (36)
- August 2017 (37)
- July 2017 (41)
- June 2017 (37)
- May 2017 (59)
- April 2017 (55)
- March 2017 (55)
- February 2017 (35)
- January 2017 (42)
- December 2016 (48)
- November 2016 (32)
- October 2016 (35)
- September 2016 (78)
- August 2016 (69)
- July 2016 (19)
- June 2016 (42)
- May 2016 (61)
- April 2016 (51)
- March 2016 (74)
- February 2016 (87)
- January 2016 (31)
- December 2015 (36)
- November 2015 (61)
- October 2015 (72)
- September 2015 (53)
- August 2015 (42)
- July 2015 (38)
- June 2015 (30)
- May 2015 (18)
- April 2015 (57)
- March 2015 (41)
- February 2015 (50)
- January 2015 (35)
- December 2014 (50)
- November 2014 (56)
- October 2014 (41)
- September 2014 (37)
- August 2014 (37)
- July 2014 (28)
- June 2014 (50)
- May 2014 (32)
- April 2014 (46)
- March 2014 (38)
- February 2014 (29)
- January 2014 (52)
- December 2013 (50)
- November 2013 (45)
- October 2013 (40)
- September 2013 (48)
- August 2013 (22)
- July 2013 (25)
- June 2013 (13)
- May 2013 (16)
- April 2013 (28)
- March 2013 (37)
- February 2013 (36)
- January 2013 (57)
- December 2012 (44)
- November 2012 (10)
- October 2012 (12)
- September 2012 (21)
- August 2012 (21)
- July 2012 (25)
- June 2012 (8)
- May 2012 (10)
- April 2012 (11)
- March 2012 (10)
- February 2012 (11)
- January 2012 (5)
- December 2011 (13)
- November 2011 (12)
- October 2011 (10)
- September 2011 (7)
- August 2011 (5)
- July 2011 (11)
- June 2011 (21)
- May 2011 (22)
- April 2011 (36)
- March 2011 (43)
- February 2011 (23)
- January 2011 (24)
- December 2010 (34)
- November 2010 (19)
- October 2010 (16)
- September 2010 (15)
- August 2010 (10)
- July 2010 (12)
- June 2010 (3)
- May 2010 (3)
- April 2010 (4)
- March 2010 (8)
- February 2010 (14)
- January 2010 (13)
- December 2009 (16)
- November 2009 (28)
- October 2009 (24)
- September 2009 (12)
- August 2009 (7)
- July 2009 (10)
- June 2009 (11)
- May 2009 (22)
- April 2009 (21)
- March 2009 (18)
- February 2009 (7)
- January 2009 (32)
- December 2008 (19)
- November 2008 (12)
- October 2008 (15)
- September 2008 (14)
- August 2008 (15)
- July 2008 (18)
- June 2008 (20)
- May 2008 (19)
- April 2008 (27)
- March 2008 (22)
- February 2008 (21)
- January 2008 (15)
- December 2007 (22)
- November 2007 (17)
- October 2007 (29)
- September 2007 (31)
- August 2007 (34)
- July 2007 (31)
- June 2007 (36)
- May 2007 (23)
- April 2007 (22)
- March 2007 (30)
- February 2007 (50)
- January 2007 (75)
- December 2006 (48)
- November 2006 (59)
- October 2006 (89)
- September 2006 (29)
- August 2006 (48)
- July 2006 (14)
- June 2006 (35)
- May 2006 (62)
- April 2006 (63)
- March 2006 (72)
- February 2006 (83)
- January 2006 (56)
- December 2005 (46)
- November 2005 (60)
- October 2005 (27)
- September 2005 (54)
- August 2005 (83)
Tags
Categories
- Anime (29)
- AWS (439)
- BBS (22)
- Blog (250)
- Book (31)
- Bridge (1)
- Browser (530)
- Cassandra (2)
- CDN (186)
- Cloud (587)
- CMS (58)
- Comic (19)
- Computer (4,507)
- Computer and Network Center (33)
- CSS (71)
- Database (423)
- DNS (132)
- Editor (26)
- Financial (89)
- Firefox (233)
- Food (14)
- FreeBSD (139)
- FTP (3)
- Game (63)
- GCP (8)
- Go (2)
- GoogleChrome (168)
- Hardware (386)
- IE (98)
- Joke (159)
- Lab (4)
- Library (7)
- Linux (175)
- MacOS (31)
- Mail (120)
- MariaDB (19)
- Movie (35)
- Murmuring (4,648)
- Music (49)
- MySQL (297)
- NCTU (65)
- NetBSD (7)
- Network (3,289)
- OpenBSD (8)
- Opera (26)
- OS (392)
- P2P (132)
- Photo (72)
- Political (124)
- PostgreSQL (41)
- Privacy (12)
- Programming (783)
- Recreation (536)
- RSS (79)
- Safari (38)
- Science (102)
- Search Engine (181)
- Security (1,061)
- Service (63)
- SMS (10)
- Social (220)
- Software (2,378)
- Spam (108)
- Sport (10)
- Telephone (118)
- Television (62)
- Usenet (15)
- Vim (14)
- VPN (19)
- Wiki (48)
- Windows (74)
- WWW (1,638)
Blogroll
Meta
Tag Archives: replica
MongoDB 的 replica-set 設定
Percona 的人寫了一份文件，以 MySQL DBA 的角度說明兩者在 replication 上的差異，然後示範怎麼在單機上架起三個 MongoDB 並且設定 replica-set：「First MongoDB replica-set Configuration for MySQL DBAs」。 這邊文章拿的是 Percona Server for MongoDB，不過應該也還行，並竟是拿 MongoDB 3.2 改的，而不是完全重寫，所以裡面的步驟拿到原版的 MongoDB 上應該也行... 可以拿 Docker 或是在 AWS 開一台 t2.medium 測試玩看看...
Amazon Aurora 支援跨區域 Read Replica
傳統的作法 (自己擁有機房時) 就是在兩個機房中間建立 site-to-site VPN (通常是 IPsec)，然後再用 MySQL 的 replication 接起來，而現在 Amazon Aurora 直接在界面上支援這件事情，可以在網頁上點一點開起來：「New – Cross-Region Read Replicas for Amazon Aurora」。 不過好像沒講到跨區的 VPC 對接設定問題？所以是透過他們自己的 network 接起來？這樣的話流量費用要怎麼算？
AWS 提供跨區的 MySQL Read Replica...
Amazon RDS 將提供跨區的 MySQL read replication。看起來是針對 5.6+ 的版本提供這個功能... 有兩篇官方文章，一篇是 CTO 發了一篇「Expanding the Cloud: Enabling Globally Distributed Applications and Diaster Recovery」，另外一篇是官方網誌上的「Cross-Region Read Replicas for Amazon RDS for MySQL」。 用圖表示比較容易懂： 在 US-East 建立 MySQL master，另外在 EU 與 Tokyo 建立 slave replication。不知道中間的 traffic … Continue reading
Amazon RDS 可以直接產生 Read Replica Replication 了...
以往要在 Amazon RDS 產生 Read Replica Replication 需要複雜的 snapshot 處理，但現在 AWS 直接提供這個功能了，而且可以同時生很多台：「New Read Replica Capabilities for Amazon RDS」。 這有多重要呢？以前因應流量瞬間爆增時的方式是增加 web server，並且利用 cache (可能是 memcached) 降低對後端的 query 數量。但因為引入 cache，平常就得處理 cache invalidate 的問題。 而這個方式平常只要處理讀寫分離就可以了。當量爆增時除了 web server 增加，直接增加後端的 RDS server (Read Replica Replication)，甚至可以分層： … Continue reading