[kudu-CR] KUDU-1751: Change default encodings

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Hello Kudu Jenkins,

I'd like you to reexamine a change.  Please visit

    http://gerrit.cloudera.org:8080/5169

to look at the new patch set (#8).

Change subject: KUDU-1751: Change default encodings
......................................................................

KUDU-1751: Change default encodings

* Change numeric (int/float/double) encodings to BIT_SHUFFLE

BIT_SHUFFLE is a better default than PLAIN since it's much more compact
and generally performs better.

* Change BINARY encodings to DICT_ENCODING

This is the default in Parquet, and we've seen that it's a common reason
that Kudu performs poorly. This automatically falls back to
non-dict-encoded for high-cardinality data.

Change-Id: I32db89337026eb6be13333ff450a6cb2b2862f7a
---
M src/kudu/cfile/cfile-test.cc
M src/kudu/cfile/type_encodings.cc
M src/kudu/tablet/diskrowset-test.cc
3 files changed, 14 insertions(+), 14 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/69/5169/8
-- 
To view, visit http://gerrit.cloudera.org:8080/5169
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I32db89337026eb6be13333ff450a6cb2b2862f7a
Gerrit-PatchSet: 8
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Adar Dembo <ad...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: David Ribeiro Alves <dr...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>