On Tue, Aug 13, 2013 at 5:17 PM, Bryan Beaudreault <[email protected] > wrote:
> I'm running cdh4.2 hbase 0.94.2, and am looking to merge some regions in a > table. Looking at Merge.java, it seems to require that the entire cluster > be offline. However, I also notice an HMerge.java which doesn't appear to > do the same validation. > > Two questions: > > 1) Why does Merge.java validate the entire cluster is down, as opposed to > just the single table being disabled? > > It is dumb/simple/old. > 2) Could I write my own tool that uses HMerge, so as to merge regions in > the disabled table without bringing the whole cluster down? > > Yes. You can't do much harm if table is offline. St.Ack
