Nishant Bangarwa created HIVE-20279:
---------------------------------------
Summary: HiveContextAwareRecordReader slows down Druid Scan
queries.
Key: HIVE-20279
URL: https://issues.apache.org/jira/browse/HIVE-20279
Project: Hive
Issue Type: Improvement
Reporter: Nishant Bangarwa
Assignee: Nishant Bangarwa
Attachments: scan2.svg
HiveContextAwareRecordReader add lots of overhead for Druid Scan Queries.
See attached flame graph.
Looks like the operations for checking for existence of footer/header buffer
takes most of time For druid and other storage handlers that do not have footer
buffer we should skip the logic for checking the existence for storage handlers
atleast.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
