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https://issues.apache.org/jira/browse/IMPALA-7462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-7462.
-----------------------------------
Resolution: Cannot Reproduce
> HASH JOIN takes lot of memory
> -----------------------------
>
> Key: IMPALA-7462
> URL: https://issues.apache.org/jira/browse/IMPALA-7462
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 2.12.0, Impala 2.13.0
> Reporter: Pranay Singh
> Priority: Major
>
> While running a complex SQL query the peak memory used up by HASH JOIN node
> is 270 GB
> Operator #Hosts Avg Time Max Time #Rows Est. #Rows
> Peak Mem Est. Peak Mem
> ------------------------------------------------------------------------------------------------------------
> 12:HASH JOIN 4 0.000ns 0.000ns 0 27.89M
> 270.38 GB 34.00 MB ====>
> When the same query is run with STRAIGHT_JOIN hint the peak memory consumed
> is 3.25 GB
> Operator #Hosts Avg Time Max Time #Rows Est. #Rows
> Peak Mem Est. Peak Mem
> ------------------------------------------------------------------------------------------------------------
> 11:HASH JOIN 1 10s171ms 10s171ms 1.55M 262.03K
> 3.25 GB 1.60 GB ===>
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