Qifan Chen has uploaded this change for review. (
http://gerrit.cloudera.org:8080/16791
Change subject: IMPALA-9355:
TestExchangeMemUsage.test_exchange_mem_usage_scaling doesn't hit the memory
limit
......................................................................
IMPALA-9355: TestExchangeMemUsage.test_exchange_mem_usage_scaling doesn't hit
the memory limit
This patch reduces the memory limit for the following query in
test_exchange_mem_usage_scaling test from 170MB to 164MB
to reduce the chance of not detecting a memory allocation
failure.
set mem_limit=<limit_in_mb>
set num_scanner_threads=1;
select *
from tpch_parquet.lineitem l1
join tpch_parquet.lineitem l2 on l1.l_orderkey = l2.l_orderkey and
l1.l_partkey = l2.l_partkey and l1.l_suppkey = l2.l_suppkey
and l1.l_linenumber = l2.l_linenumber
order by l1.l_orderkey desc, l1.l_partkey, l1.l_suppkey,
l1.l_linenumber limit 5;
In a test with 500 executions of the above query with the memory
limit set to 164MB, there were 500 memory allocation failures in
total (one in each execution), and a total of 266 of them from
Exchange Node #4.
Testing:
Ran the query in question individually;
Ran TestExchangeMemUsage.test_exchange_mem_usage_scaling test;
Ran core tests.
Change-Id: Id945d7e37fac07beb7808e6ccf8530e667cbaad4
---
M
testdata/workloads/functional-query/queries/QueryTest/exchange-mem-scaling.test
1 file changed, 1 insertion(+), 1 deletion(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/91/16791/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Id945d7e37fac07beb7808e6ccf8530e667cbaad4
Gerrit-Change-Number: 16791
Gerrit-PatchSet: 1
Gerrit-Owner: Qifan Chen <[email protected]>
