Please see the following for description on data block encoding : http://hbase.apache.org/book.html#compression
If you have further questions on data block encoding, please start another thread. On Thu, Feb 18, 2016 at 3:16 AM, Shushant Arora <shushantaror...@gmail.com> wrote: > Thanks! > > does hbase compress repeated values in keys and columns :location say > (ASIA). will that be repeated with each key or hbase snappy compression > will handle that. > > same applies for repeated values of a column? > > Thanks! > > On Wed, Feb 17, 2016 at 7:14 AM, Ted Yu <yuzhih...@gmail.com> wrote: > > > bq. hbase.hregion.majorcompaction = 0 per table/column family > > > > I searched code base but didn't find relevant test case for the above. > > Mind giving me some pointer ? > > > > Thanks > > > > On Tue, Feb 16, 2016 at 5:38 PM, Vladimir Rodionov < > vladrodio...@gmail.com > > > > > wrote: > > > > > 1.does major compaction in hbase runs per table basis. > > > > > > Per Region > > > > > > 2.By default every 24 hours? > > > > > > In older versions - yes. Current (1.x+) - 7 days > > > > > > 3.Can I disable automatic major compaction for few tables while keep it > > > enable for rest of tables? > > > > > > yes, you can. You can set > > > > > > hbase.hregion.majorcompaction = 0 per table/column family > > > > > > 4.Does hbase put ,get and delete are blocked while major compaction and > > are > > > working in minor compaction? > > > > > > No, they are not. > > > > > > -Vlad > > > > > > On Tue, Feb 16, 2016 at 4:51 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > > > > > For #2, see http://hbase.apache.org/book.html#managed.compactions > > > > > > > > For #3, I don't think so. > > > > > > > > On Tue, Feb 16, 2016 at 4:46 PM, Shushant Arora < > > > shushantaror...@gmail.com > > > > > > > > > wrote: > > > > > > > > > Hi > > > > > > > > > > 1.does major compaction in hbase runs per table basis. > > > > > 2.By default every 24 hours? > > > > > 3.Can I disable automatic major compaction for few tables while > keep > > it > > > > > enable for rest of tables? > > > > > > > > > > 4.Does hbase put ,get and delete are blocked while major compaction > > and > > > > are > > > > > working in minor compaction? > > > > > > > > > > Thanks > > > > > > > > > > > > > > >
