I am looking for some performance review on Hadoop (300-600 boxes cluster, commodity hardware), especially on the following aspects:
- High concurrent read & write
- Web crawling
- Mapreduce, parallel computing
- Inverted index
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This is not a specific question, maybe that is why nobody answered until now. Performance on 3-600 nodes cluster can be best analyzed with benchmarks.
However, I found some really interesting articles regarding Hadoop and its implementations in production:
I hope those links will get you started and give you all the info you need.