“初探Hadoop MapReduce NextGen|MRv2|YARN(工作上下文紧急切换, 该篇待续)”
fujohnwang
2011-12-16
人家年初提出来的想法,我年末才刚开始看, 惭愧…
Architecture
- further separation of concerns on JobTracker
- resource management concern
- job scheduling/monitoring concern
- not limited to MapReduce pattern, multiple different parallel programming patterns can be used too, like master-workers, MPI, iterative monads, etc. This is a more generic distributed parallel programming framework.
Components
- ResourceManager
- Scheduler
- ApplicationManager
- NodeManager
- ApplicationMaster
Interesting projects built on hadoop
- http://www.lilyproject.org/lily/index.html - LILY - SMART DATA, AT SCALE, MADE EASY
Hadoop in multiple com
##Hadoop @ 百度 1. 透明压缩 - linux idle class调度 - 异步block级别压缩
2. 资源隔离
- cgroup
References
- http://developer.yahoo.com/blogs/hadoop/posts/2011/02/mapreduce-nextgen/
- http://developer.yahoo.com/blogs/hadoop/posts/2011/03/mapreduce-nextgen-scheduler/
- http://www.mesosproject.org/
- http://developer.yahoo.com/blogs/hadoop/posts/2011/02/capacity-scheduler/
- http://wiki.apache.org/hadoop/SupportingProjects
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