MapR does help with the GC because it *does* have a JNI interface into an external block cache.
Typical configurations with MapR trim HBase down to the minimal viable size and increase the file system cache correspondingly. On Fri, Jul 8, 2011 at 7:52 PM, Jason Rutherglen <jason.rutherg...@gmail.com > wrote: > MapR doesn't help with the GC issues. If MapR had a JNI > interface into an external block cache then that'd be a different > story. :) And I'm sure it's quite doable. >
