Venugopal Reddy K created CARBONDATA-4042: ---------------------------------------------
Summary: Insert into select and CTAS launches fewer tasks(limited to max nodes) even when target table is of no_sort Key: CARBONDATA-4042 URL: https://issues.apache.org/jira/browse/CARBONDATA-4042 Project: CarbonData Issue Type: Improvement Components: data-load, spark-integration Reporter: Venugopal Reddy K *Issue:* At present, When we do insert into table select from or create table as select from, we lauch one single task per node. Whereas when we do a simple select * from table query, tasks launched are equal to number of carbondata files(CARBON_TASK_DISTRIBUTION default is CARBON_TASK_DISTRIBUTION_BLOCK). Thus, slows down the load performance of insert into select and ctas cases. Refer [Community discussion regd. task lauch|http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/Discussion-Query-Regarding-Task-launch-mechanism-for-data-load-operations-tt98711.html] *Suggestion:* Lauch the same number of tasks as in select query for insert into select and ctas cases when the target table is of no-sort. -- This message was sent by Atlassian Jira (v8.3.4#803005)