Ramon: See http://hbase.apache.org/book.html#compaction for description on compaction file selection.
Cheers On Fri, Feb 21, 2014 at 4:38 AM, yonghu <[email protected]> wrote: > Before you want to trigger major compaction, let's first explain why do we > need major compaction. The major compaction will cause > 1. delete the data which is masked by tombstone; > 2. delete the data which has expired ttl; > 3. compact several small hfiles into a single larger one. > > I didn't quite understand what do you mean by "use num of storefiles", why > this? > > > On Fri, Feb 21, 2014 at 10:50 AM, Ramon Wang <[email protected]> wrote: > > > Hi Guys > > > > We disabled the automatically major compaction setting in our HBase > > cluster, so we want to something which can tell us when should we do > major > > compaction, we were thinking to use "num of storefiles", but we cannot > find > > any APIs or any JMX settings which can be used for it, please share us > some > > ideas on how to do it, thanks in advance. > > > > Cheers > > Ramon > > >
