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 >
