Give Hbase region servers lots of memory, set number of Hbase store files and blocking files way high. Major compact before and after. You can create an index a sync with map reduce but not rebuild AFAIK. Also if rebuilding one or more local index, I found it better to drop it first in Hbase, preserving the splits.
> On Jun 3, 2017, at 12:36 AM, co2y <c...@foxmail.com> wrote: > > Hi everyone, > > I am creating index on an existing big table, it is very slow. Sometimes, it > is stuck in “BUILDING” state. > > When building index on an existing big table, does it upsert data into index > table? Is there any other approaches like MapReduce to build index on > existing tables? > > Thank you! >
