March 2011
1 post
http://www.cloudera.com/blog/2011/03/avoiding-full-... →
Great series of blog posts on some HBase GC optimization work by Todd Lipcon at Cloudera.
Problem: Long GC pauses were being observed for write-heavy HBase workloads on the RegionServer. One RegionServer is responsible for several regions, and all writes to a Region go to a MemStore which gets flushed to HDFS only after a certain threshold (which means the objects in MemStore make it to tenured...