[ANNOUNCE] Apache CarbonData 1.5.4 release

[ravipesala <ra...@gmail.com>]

Hi All, 

Apache CarbonData community is pleased to announce the release of the 
Version 1.5.4 in The Apache Software Foundation (ASF). 

Apache CarbonData community is pleased to announce the release of the
Version 1.5.4 in The Apache Software Foundation (ASF). 

CarbonData is a high-performance data solution that supports various data
analytic scenarios, including BI analysis, ad-hoc SQL query, fast filter
lookup on detail record, streaming analytics, and so on. CarbonData has been
deployed in many enterprise production environments, in one of the largest
scenarios, it supports queries on a single table with 3PB data (more than 5
trillion records) with response time less than 3 seconds!

We encourage you to use the release
https://dist.apache.org/repos/dist/release/carbondata/1.5.4/, and feedback
through the CarbonData user mailing lists!

This release note provides information on the new features, improvements,
and bug fixes of this release.

What’s New in CarbonData Version 1.5.4?
CarbonData 1.5.4 intention was to move closer to unified analytics. We have
added new binary datatype to store binary objects like images. We have also
allowed users to change sort columns of an existing table for better
flexibility as per user needs. we are now compacting the segments which are
loaded using range sort.

In this version of CarbonData, around 13 JIRA tickets related to new
features, improvements, and bugs have been resolved. Following are the
summary.

CarbonData Core
Support Altering SORT_COLUMNS Property on the table 
Previously, the user can configure the sort columns during table creation
only, it restricts the user to load the data with same sort columns even
though his query scenarios are changed.

From this version, we support altering the sort columns even after the table
is created.

Support Configurable Page Size
This version allows the user to configure the page size, it gives the
control of memory utilization during reading and loading data especially for
complex, varchar, and binary datatypes.

Support Binary Data Type
It is useful to store big objects and binary objects like images.

Supported Compaction on Range Sorted Segments
The segments which are loaded with range sort scope will now be compacted
using the range compaction.

Behaviour Change
None



Please find the detailed JIRA list:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12320220&version=12345388

Sub-task
[CARBONDATA-3362] - Document Update for Scenario
Bug
[CARBONDATA-3331] - Database index size is more than overall index size in
SHOW METADATA command
[CARBONDATA-3334] - multiple segment files created for partition table for
one segment
[CARBONDATA-3344] - Fix Drop column not present in table
[CARBONDATA-3353] - Fix MinMax Pruning for Measure column in case of Legacy
store
[CARBONDATA-3360] - NullPointerException in clean files operation
[CARBONDATA-3369] - Fix issues during concurrent execution of Create table
If not exists
[CARBONDATA-3371] - Compaction show ArrayIndexOutOfBoundsException after
sort_columns modification
[CARBONDATA-3375] - GC Overhead limit exceeded error for huge data in Range
Compaction
[CARBONDATA-3377] - String Type Column with huge strings and null values
fails Range Compaction
[CARBONDATA-3386] - Concurrent Merge index and query is failing
Improvement
[CARBONDATA-3001] - Propose configurable page size in MB (via carbon
property)
[CARBONDATA-3374] - Optimize documentation and fix some spell errors.


Regards,
Ravindra.



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