[IMPALA-10829] Memory leak while inserting kudu with rand()

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 4.0.0, Impala 4.1.0, Impala 4.2.0, Impala 4.1.1, Impala 4.1.2
• Fix Version/s: Impala 4.3.0
• Target Version: Impala 4.1.3
• Epic Color: ghx-label-5
• Assignee: Csaba Ringhofer
• Reporter: Quanlong Huang
• Created: 28/Jul/21 05:22
• Updated: 12/Aug/23 09:56
• Resolved: 12/Aug/23 09:56

Description

This happens when inserting into a partitioned kudu table:

[localhost:21050] default> create table my_kudu_tbl (id int, primary key(id)) partition by hash partitions 3 stored as kudu;

[localhost:21050] default> insert into my_kudu_tbl select cast(rand() as int) from functional.alltypestiny;
Query: insert into my_kudu_tbl select cast(rand() as int) from functional.alltypestiny
Query submitted at: 2021-07-28 13:15:57 (Coordinator: http://quanlong-OptiPlex-BJ:25000)
Query progress can be monitored at: http://quanlong-OptiPlex-BJ:25000/query_plan?query_id=da46d70b048eff6d:5b8369eb00000000
WARNINGS: UDF WARNING: Memory leaked via FunctionContext::Allocate()
UDF WARNING: Memory leaked via FunctionContext::Allocate()
UDF WARNING: Memory leaked via FunctionContext::Allocate()
UDF WARNING: Memory leaked via FunctionContext::Allocate()
UDF WARNING: Memory leaked via FunctionContext::Allocate()
UDF WARNING: Memory leaked via FunctionContext::Allocate()
Key already present in Kudu table 'impala::default.my_kudu_tbl'. (1 of 7 similar)

Modified 1 row(s), 7 row error(s) in 4.67s

Issue Links

• is caused by: IMPALA-9782 KuduPartitionExpr is not thread-safe
• relates to: IMPALA-2711 INSERT using RAND(): Memory leaked via FunctionContext::Allocate()