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Posted to issues-all@impala.apache.org by "Michael Brown (JIRA)" <ji...@apache.org> on 2018/10/18 22:41:00 UTC
[jira] [Created] (IMPALA-7727) compute stats child query errors no
longer propagate to parent query
Michael Brown created IMPALA-7727:
-------------------------------------
Summary: compute stats child query errors no longer propagate to parent query
Key: IMPALA-7727
URL: https://issues.apache.org/jira/browse/IMPALA-7727
Project: IMPALA
Issue Type: Bug
Components: Frontend
Affects Versions: Impala 3.1.0
Reporter: Michael Brown
Assignee: bharath v
[~bharathv] since you have been dealing with stats, please take a look. Otherwise feel free to reassign. This bug prevents the stress test from running with compute stats statements. It triggers in non-stressful conditions, too.
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$ impala-shell.sh -d tpch_parquet
[localhost:21000] tpch_parquet> set mem_limit=24m;
MEM_LIMIT set to 24m
[localhost:21000] tpch_parquet> compute stats customer;
Query: compute stats customer
WARNINGS: Cancelled
[localhost:21000] tpch_parquet>
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The problem is that the child query didn't have enough memory to run, but this error didn't propagate up.
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Query (id=384d37fb2826a962:f4b1035700000000):
DEBUG MODE WARNING: Query profile created while running a DEBUG build of Impala. Use RELEASE builds to measure query performance.
Summary:
Session ID: d343e1026d497bb0:7e87b342c73c108d
Session Type: BEESWAX
Start Time: 2018-10-18 15:16:34.036363000
End Time: 2018-10-18 15:16:34.177711000
Query Type: QUERY
Query State: EXCEPTION
Query Status: Rejected query from pool default-pool: minimum memory reservation is greater than memory available to the query for buffer reservations. Memory reservation needed given the current plan: 128.00 KB. Adjust either the mem_limit or the pool config (max-query-mem-limit, min-query-mem-limit) for the query to allow the query memory limit to be at least 32.12 MB. Note that changing the mem_limit may also change the plan. See the query profile for more information about the per-node memory requirements.
Impala Version: impalad version 3.1.0-SNAPSHOT DEBUG (build 9f5c5e6df03824cba292fe5a619153462c11669c)
User: mikeb
Connected User: mikeb
Delegated User:
Network Address: ::ffff:127.0.0.1:46458
Default Db: tpch_parquet
Sql Statement: SELECT COUNT(*) FROM customer
Coordinator: mikeb-ub162:22000
Query Options (set by configuration): MEM_LIMIT=25165824,MT_DOP=4
Query Options (set by configuration and planner): MEM_LIMIT=25165824,NUM_SCANNER_THREADS=1,MT_DOP=4
Plan:
----------------
Max Per-Host Resource Reservation: Memory=512.00KB Threads=5
Per-Host Resource Estimates: Memory=146MB
F01:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1
| Per-Host Resources: mem-estimate=10.00MB mem-reservation=0B thread-reservation=1
PLAN-ROOT SINK
| mem-estimate=0B mem-reservation=0B thread-reservation=0
|
03:AGGREGATE [FINALIZE]
| output: count:merge(*)
| mem-estimate=10.00MB mem-reservation=0B spill-buffer=2.00MB thread-reservation=0
| tuple-ids=1 row-size=8B cardinality=1
| in pipelines: 03(GETNEXT), 01(OPEN)
|
02:EXCHANGE [UNPARTITIONED]
| mem-estimate=0B mem-reservation=0B thread-reservation=0
| tuple-ids=1 row-size=8B cardinality=1
| in pipelines: 01(GETNEXT)
|
F00:PLAN FRAGMENT [RANDOM] hosts=1 instances=4
Per-Host Resources: mem-estimate=136.00MB mem-reservation=512.00KB thread-reservation=4
01:AGGREGATE
| output: sum_init_zero(tpch_parquet.customer.parquet-stats: num_rows)
| mem-estimate=10.00MB mem-reservation=0B spill-buffer=2.00MB thread-reservation=0
| tuple-ids=1 row-size=8B cardinality=1
| in pipelines: 01(GETNEXT), 00(OPEN)
|
00:SCAN HDFS [tpch_parquet.customer, RANDOM]
partitions=1/1 files=1 size=12.34MB
stored statistics:
table: rows=150000 size=12.34MB
columns: all
extrapolated-rows=disabled max-scan-range-rows=150000
mem-estimate=24.00MB mem-reservation=128.00KB thread-reservation=0
tuple-ids=0 row-size=8B cardinality=150000
in pipelines: 00(GETNEXT)
----------------
Estimated Per-Host Mem: 153092096
Per Host Min Memory Reservation: mikeb-ub162:22000(0) mikeb-ub162:22001(128.00 KB)
Request Pool: default-pool
Admission result: Rejected
Query Compilation: 126.903ms
- Metadata of all 1 tables cached: 5.484ms (5.484ms)
- Analysis finished: 16.104ms (10.619ms)
- Value transfer graph computed: 32.646ms (16.542ms)
- Single node plan created: 61.289ms (28.642ms)
- Runtime filters computed: 66.148ms (4.859ms)
- Distributed plan created: 66.428ms (280.057us)
- Parallel plans created: 67.866ms (1.437ms)
- Planning finished: 126.903ms (59.037ms)
Query Timeline: 140.000ms
- Query submitted: 0.000ns (0.000ns)
- Planning finished: 140.000ms (140.000ms)
- Submit for admission: 140.000ms (0.000ns)
- Completed admission: 140.000ms (0.000ns)
- Rows available: 140.000ms (0.000ns)
- Unregister query: 140.000ms (0.000ns)
- ComputeScanRangeAssignmentTimer: 0.000ns
Frontend:
ImpalaServer:
- ClientFetchWaitTimer: 0.000ns
- RowMaterializationTimer: 0.000ns
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