On Thu, Jan 20, 2011 at 10:34 AM, Vladimir Rodionov <[email protected] > wrote:
> BigMemory anyone? > > http://www.terracotta.org/bigmemory > > Yea, something like that, minus the commercial license ;-) -Todd ____ > From: Todd Lipcon [[email protected]] > Sent: Thursday, January 20, 2011 9:33 AM > To: dev > Subject: Heap fragmentation > > I did some experiments to understand our full GC issues better last night. > Here are the results: > http://people.apache.org/~todd/hbase-fragmentation/ > > <http://people.apache.org/~todd/hbase-fragmentation/>Basically my > conclusion > here is that (for these YCSB workloads) the memstore is way worse for heap > fragmentation than the block cache. > > Also we now have some tools and reference for comparison if we make any > changes to memstore to try to combat this issue. > > -Todd > -- > Todd Lipcon > Software Engineer, Cloudera > -- Todd Lipcon Software Engineer, Cloudera
