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Posted to commits@carbondata.apache.org by ra...@apache.org on 2016/11/09 05:31:06 UTC
incubator-carbondata git commit: update readme as per IPMC comments
Repository: incubator-carbondata
Updated Branches:
refs/heads/branch-0.2 9b99b17a4 -> 140d20e27
update readme as per IPMC comments
Project: http://git-wip-us.apache.org/repos/asf/incubator-carbondata/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-carbondata/commit/140d20e2
Tree: http://git-wip-us.apache.org/repos/asf/incubator-carbondata/tree/140d20e2
Diff: http://git-wip-us.apache.org/repos/asf/incubator-carbondata/diff/140d20e2
Branch: refs/heads/branch-0.2
Commit: 140d20e2721658f566750ed9a26c07dc0672e505
Parents: 9b99b17
Author: chenliang613 <ch...@apache.org>
Authored: Wed Nov 9 10:11:51 2016 +0800
Committer: ravipesala <ra...@gmail.com>
Committed: Wed Nov 9 11:00:14 2016 +0530
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README.md | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
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http://git-wip-us.apache.org/repos/asf/incubator-carbondata/blob/140d20e2/README.md
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diff --git a/README.md b/README.md
index 40fbb87..8a5a798 100644
--- a/README.md
+++ b/README.md
@@ -19,11 +19,13 @@
<img src="/docs/images/format/CarbonData_logo.png" width="200" height="40">
-Apache CarbonData is a new big data file format for faster
+Apache CarbonData(incubating) is a new big data file format for faster
interactive query using advanced columnar storage, index, compression
and encoding techniques to improve computing efficiency, in turn it will
help speedup queries an order of magnitude faster over PetaBytes of data.
+You can find the latest CarbonData document and learn more at [CarbonData cwiki](https://cwiki.apache.org/confluence/display/CARBONDATA)
+
### Features
CarbonData file format is a columnar store in HDFS, it has many features that a modern columnar format has, such as splittable, compression schema ,complex data type etc, and CarbonData has following unique features:
* Stores data along with index: it can significantly accelerate query performance and reduces the I/O scans and CPU resources, where there are filters in the query. CarbonData index consists of multiple level of indices, a processing framework can leverage this index to reduce the task it needs to schedule and process, and it can also do skip scan in more finer grain unit (called blocklet) in task side scanning instead of scanning the whole file.
@@ -31,9 +33,6 @@ CarbonData file format is a columnar store in HDFS, it has many features that a
* Column group: Allow multiple columns to form a column group that would be stored as row format. This reduces the row reconstruction cost at query time.
* Supports for various use cases with one single Data format : like interactive OLAP-style query, Sequential Access (big scan), Random Access (narrow scan).
-### Documentation
-Please visit [CarbonData cwiki](https://cwiki.apache.org/confluence/display/CARBONDATA)
-
### Building CarbonData,using development tools and cluster deployment guide
Please refer [Building CarbonData and Configuring IDE](https://cwiki.apache.org/confluence/display/CARBONDATA/Building+CarbonData+And+IDE+Configuration)
@@ -67,4 +66,4 @@ To get involved in CarbonData:
## About
Apache CarbonData is an open source project of The Apache Software Foundation (ASF).
-CarbonData project original contributed from the [Huawei](http://www.huawei.com).
+