3.3.0-rc1

Discovery features

The first release candidate version for 3.3.0.

Enhancement

Enable ioConfig on the realtime ingestion (#2158)
Enable explicit garbage collection in dataprep (#2144)
Users should be able to search for hidden value in filter widget (#2045)
Support changing column schema on ingestion stage (#1920)
User Delete Policy with workspace (#2115)
Simplify color by option on mapview layer option and add cluster view mode on point layer (#1443)
Enhance re-ingestion datasource with file (#2178)
Creating a metadata by database in data connection (#1539)

Bug Fix

Script error when moving to next page of datasource creation with file (#2163)
Infinite loop when the total count of list is zero (#2176)
Cannot register the StorageProperties bean (#2179)
limit is not support in oracle (#2177)

Druid features

You need to upgrade your Druid according to the Discovery version.
Use druid-metatron-3.2.4.tar.gz from this link

Update easymock to 3.4 (#2162)
Support 한글 token in SQL parser (#2160)
Support router in single mode (#2155)
Fix tasks command at DruidShell (#2143)
Support more result formats and column header at SQL (#2141)
Support full param to supervisor api (#2140)
Support for router forwarding request to active coordinator/overlord (#2139)
Implment SQLMetadataStorageActionHandler (#2138)
Improve task retrieval APIs on Overlord (#2137)
Apply java8 (#2136)
Introduce SystemSchema tables (#2135)
Add Unified web console (#2134)
Hadoop ingestion in ReduceMerge mode does not progress from second index (#2151)
Do not keep index in memory for index viewer (#2121)
Minor log message improvements (#2124)
Remove classpath from logging in MiddleManager (#2123)
Regard U+00A0 as whitespace (#2122)
Fix NPE when dimension spec is not exists (#2117)
Result of hive udaf is not deterministic (#2116)