[jira] [Work started] (IMPALA-7648) Add tests for all cases where OOM is expected

["Tim Armstrong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-7648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on IMPALA-7648 started by Tim Armstrong.
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> Add tests for all cases where OOM is expected
> ---------------------------------------------
>
>                 Key: IMPALA-7648
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7648
>             Project: IMPALA
>          Issue Type: Test
>          Components: Infrastructure
>            Reporter: Tim Armstrong
>            Assignee: Tim Armstrong
>            Priority: Major
>              Labels: resource-management
>
> We should add tests for most or all of the subtasks of IMPALA-4834 that exercise the expected OOM code path. I'll add some bullet points here to track what the coverage is and what's missing.
> * Aggregations with large var-len string expressions
> * Top-N with large window
> * -Kudu scans- : covered by kudu-scan-mem-usage.test
> * -Nested loop join- : covered by single-node-nlj-exhaustive.test
> * Many duplicate keys on build side of hash join
> * -Large number of NULLS on build side of NAAJ- : covered by spilling-naaj-no-deny-reservation.test
> * -HDFS table partitioned insert- : covered insert-mem-limit.test
> * Large analytic window can't be spilled
> * Queries processing large strings (may need multiple tests to cover different places). large_strings.test has some coverage
> * Parquet files with large pages
> * Exchange uses a lot of memory



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