[IMPALA-11557] Memory leak in BlockingRowBatchQueue

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 4.0.0, Impala 4.1.0
• Fix Version/s: Impala 4.2.0, Impala 4.1.1
• Component/s: Backend
• Labels: memory-leak
• Target Version: Impala 4.2.0
• Epic Color: ghx-label-11
• Assignee: Xianqing He
• Reporter: Xianqing He
• Created: 07/Sep/22 08:23
• Updated: 20/Sep/22 05:18
• Resolved: 20/Sep/22 05:18

Description

Reproduce SQL: select count from tpch_pqrquet.lineitem;

40 Concurrent running reproduces memory leaks faster.

Code location of memory leak: https://github.com/apache/impala/blob/17ec3a85c7e3733dacb08a9fcca83fff5ec75102/be/src/runtime/blocking-row-batch-queue.cc#L31