[HIVE-16850] Converting table to insert-only acid may open a txn in an inappropriate place

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: Transactions
• Labels: mm-gap-2
• Assignee: Eugene Koifman
• Reporter: Wei Zheng
• Created: 07/Jun/17 22:12
• Updated: 04/Apr/18 02:35
• Resolved: 02/Apr/18 21:38

Description

This would work for unit-testing, but would need to be fixed for production.

HiveTxnManager txnManager = SessionState.get().getTxnMgr();
      if (txnManager.isTxnOpen()) {
        mmWriteId = txnManager.getCurrentTxnId();
      } else {
        mmWriteId = txnManager.openTxn(new Context(conf), conf.getUser());
        txnManager.commitTxn();
      }

Issue Links

• duplicates: HIVE-17647 DDLTask.generateAddMmTasks(Table tbl) and other random code should not start transactions