[DRILL-5906] java.lang.NullPointerException while quering Hive ORC tables on MapR cluster.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.0
• Fix Version/s: 1.12.0
• Labels: ready-to-commit
• Assignee: Vitalii Diravka
• Reporter: Vitalii Diravka
• Reviewer: Arina Ielchiieva
• Created: 25/Oct/17 17:54
• Updated: 28/Mar/18 22:52
• Resolved: 30/Oct/17 21:15

Description

Record reader throw an exception when trying to read an empty split.
To reproduce the issue - put the bucketed table with ORC files (one or more are empty) onto the maprfs and
run the following Hive DDL:

CREATE TABLE `orc_bucketed`(
  `id` int,
  `name` string)
CLUSTERED BY (
  id)
INTO 2 BUCKETS
ROW FORMAT SERDE
  'org.apache.hadoop.hive.ql.io.orc.OrcSerde'
STORED AS INPUTFORMAT
  'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
OUTPUTFORMAT
  'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'
LOCATION
  'maprfs:/tmp/bucketed_table/';

Possible fix: upgrade drill to 1.2.0-mapr-1707 hive.version, where this issue was fixed.

Issue Links

• relates to: DRILL-5978 Updating of Apache and MapR Hive libraries to 2.3.2 and 2.1.1-mapr-1710 versions respectively
• links to: GitHub Pull Request #1010