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https://issues.apache.org/jira/browse/HIVE-21279?focusedWorklogId=221469&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-221469
]
ASF GitHub Bot logged work on HIVE-21279:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 01/Apr/19 20:52
Start Date: 01/Apr/19 20:52
Worklog Time Spent: 10m
Work Description: jdere commented on pull request #582: Hive 21386:
Extend the fetch task enhancement done in HIVE-21279 to make it work with query
result cache
URL: https://github.com/apache/hive/pull/582#discussion_r271030420
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
##########
@@ -7175,6 +7176,23 @@ private ExprNodeDesc getNotNullConstraintExpr(Table
targetTable, Operator input,
return currUDF;
}
+ private Path getDestinationFilePath(final String destinationFile, boolean
isMmTable)
+ throws SemanticException {
+ if (this.isResultsCacheEnabled() && this.queryTypeCanUseCache()) {
+ assert (!isMmTable);
Review comment:
Is isMmTable necessarily false when this method is called below?
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Issue Time Tracking
-------------------
Worklog Id: (was: 221469)
> Avoid moving/rename operation in FileSink op for SELECT queries
> ---------------------------------------------------------------
>
> Key: HIVE-21279
> URL: https://issues.apache.org/jira/browse/HIVE-21279
> Project: Hive
> Issue Type: Improvement
> Components: Query Planning
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-21279.1.patch, HIVE-21279.10.patch,
> HIVE-21279.11.patch, HIVE-21279.12.patch, HIVE-21279.13.patch,
> HIVE-21279.2.patch, HIVE-21279.3.patch, HIVE-21279.4.patch,
> HIVE-21279.5.patch, HIVE-21279.6.patch, HIVE-21279.7.patch,
> HIVE-21279.8.patch, HIVE-21279.9.patch
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently at the end of a job FileSink operator moves/rename temp directory
> to another directory from which FetchTask fetches result. This is done to
> avoid fetching potential partial/invalid files by failed/runway tasks. This
> operation is expensive for cloud storage. It could be avoided if FetchTask is
> passed on set of files to read from instead of whole directory.
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