[HIVE-15862] beeline always have a warning "Hive does not support autoCommit=false"

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.2.0
• Component/s: Beeline

Environment

hive2.1.0

• Target Version/s: 2.1.0, 2.1.1
• Release Note: set the autoCommit default value to true in BeeLineOpts
• Assignee: yangfang
• Reporter: yangfang
• Created: 09/Feb/17 13:00
• Updated: 14/Nov/17 21:55
• Resolved: 14/Nov/17 21:55

Description

When we use beeline, there is always a warning::"Request to set autoCommit to false; Hive does not support autoCommit=false",
For example, we use beeline excute a sql:
beeline -u "jdbc:hive2://localhost:10000/default" -n mr -e "show tables" --hivevar taskNO=10111, we got this warning:
.................................................................................
Connecting to jdbc:hive2://localhost:10000/default
Connected to: Apache Hive (version 2.1.0-zdh2.7.3)
Driver: Hive JDBC (version 2.1.0-zdh2.7.3)
17/02/10 15:10:10 [main]: WARN jdbc.HiveConnection: Request to set autoCommit to false; Hive does not support autoCommit=false.

When I looked at the hive source code, I found the BeeLineOpts set the autoCommit default value to false, It always triggers an alarm when beeline connect to the hiveserver2 in DatabaseConnection.connect:
getConnection().setAutoCommit(beeLine.getOpts().getAutoCommit());

Issue Links

• duplicates: HIVE-15060 Remove the autoCommit warning from beeline