-NameNode per-block memory usage?
Otis Gospodnetic 2012-01-17, 15:08
How much memory/JVM heap does NameNode use for each block?
I've tried locating this in the FAQ and on search-hadoop.com, but couldn't find a ton of concrete numbers, just these two:
http://search-hadoop.com/m/RmxWMVyVvK1 - 150 bytes/block?
http://search-hadoop.com/m/O886P1VyVvK1 - 1 GB heap for every object?