Awaiting for response.. On 30-Jul-2016 3:20 PM, "Shankar Mane" <shankar.m...@games24x7.com> wrote:
> > I am Comparing Querying speed between GZ and BZ2. > > Below are the 2 files and their sizes (This 2 files have same data): > kafka_3_25-Jul-2016-12a.json.gz = 1.8G > kafka_3_25-Jul-2016-12a.json.bz2= 1.1G > > > > Results: > > 0: jdbc:drill:> select channelid, count(serverTime) from dfs.`/tmp/stest-gz/kafka_3_25-Jul-2016-12a.json.gz` group by channelid ; > +------------+----------+ > | channelid | EXPR$1 | > +------------+----------+ > | 3 | 977134 | > | 0 | 836850 | > | 2 | 3202854 | > +------------+----------+ > 3 rows selected (86.034 seconds) > > > > 0: jdbc:drill:> select channelid, count(serverTime) from dfs.`/tmp/stest-bz2/kafka_3_25-Jul-2016-12a.json.bz2` group by channelid ; > +------------+----------+ > | channelid | EXPR$1 | > +------------+----------+ > | 3 | 977134 | > | 0 | 836850 | > | 2 | 3202854 | > +------------+----------+ > 3 rows selected (459.079 seconds) > > > > Questions: > 1. As per above Test: Gz is 6x fast than Bz2. why is that ? > 2. How can we speed to up Bz2. Are there any configuration to do ? > 3. As bz2 is splittable format, How drill using it ? > > > regards, > shankar
