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https://issues.apache.org/jira/browse/IMPALA-5604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-5604.
-----------------------------------
Resolution: Fixed
Fix Version/s: Impala 3.1.0
Impala 2.13.0
commit 1b0a027ffb216d729fe68e7240313af77550ae08
Author: Tim Armstrong <[email protected]>
Date: Thu Jun 14 16:13:58 2018 -0700
IMPALA-5604: document DISABLE_CODEGEN_ROWS_THRESHOLD
Also fix a couple of nits in EXEC_SINGLE_NODE_ROWS_THRESHOLD.
Change-Id: I709cd55e3869888feb645f85e61a99901d41d479
Reviewed-on: http://gerrit.cloudera.org:8080/10727
Reviewed-by: Alex Rodoni <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Document DISABLE_CODEGEN_ROWS_THRESHOLD
> ---------------------------------------
>
> Key: IMPALA-5604
> URL: https://issues.apache.org/jira/browse/IMPALA-5604
> Project: IMPALA
> Issue Type: Task
> Components: Docs
> Affects Versions: Impala 2.10.0
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Fix For: Impala 2.13.0, Impala 3.1.0
>
>
> We just checking in DISABLE_CODEGEN_ROWS_THRESHOLD to master with default
> value 50,000.
> The option uses the planner's estimates to determine whether to disable
> codegen for a query based on the maximum number of rows flowing through any
> part of the query plan.
> It is similar to EXEC_SINGLE_NODE_ROWS_THRESHOLD in behaviour except the
> threshold is per-node rows instead of total rows.
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