[TAJO-754] failure of INSERT INTO may remove the target table.

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.8.0, 0.9.0
• Fix Version/s: 0.8.0, 0.9.0
• Component/s: QueryMaster
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 11/Apr/14 04:47
• Updated: 11/Apr/14 05:20
• Resolved: 11/Apr/14 05:20

Description

Currently, INSERT INTO is not supported yet. But, the failure of INSERT INTO may remove the target table. This is a critical bug.

default> insert into table4 (id, name) select l_orderkey::int4, l_returnflag from tpch.lineitem;
Internal error!
java.io.IOException: The output directory 'hdfs://127.0.0.1:8020/tajo/warehouse/default/table4 already exists.
	at org.apache.tajo.master.querymaster.QueryMasterTask.initStagingDir(QueryMasterTask.java:412)
	at org.apache.tajo.master.querymaster.QueryMasterTask.init(QueryMasterTask.java:154)
	at org.apache.tajo.master.querymaster.QueryMaster$QueryStartEventHandler.handle(QueryMaster.java:379)
	at org.apache.tajo.master.querymaster.QueryMaster$QueryStartEventHandler.handle(QueryMaster.java:372)
	at org.apache.tajo.master.TajoAsyncDispatcher.dispatch(TajoAsyncDispatcher.java:137)
	at org.apache.tajo.master.TajoAsyncDispatcher$1.run(TajoAsyncDispatcher.java:79)
	at java.lang.Thread.run(Thread.java:744)