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https://issues.apache.org/jira/browse/HIVE-7313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14584409#comment-14584409
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Lefty Leverenz commented on HIVE-7313:
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Doc note: [~damien.carol] documented *hive.exec.temporary.table.storage* in
the wiki and I added it to the Temporary Tables section of the DDL doc, so I'm
removing the TODOC15 label (which means TODOC1.1.0 but we don't have that
label).
* [Configuration Properties -- hive.exec.temporary.table.storage |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.exec.temporary.table.storage]
* [DDL -- Temporary Tables |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-TemporaryTables]
An explanation of what the "default" setting means would be a good improvement,
but perhaps readers can figure it out by reading the linked HDFS doc.
> Allow in-memory/ssd session-level temp-tables
> ---------------------------------------------
>
> Key: HIVE-7313
> URL: https://issues.apache.org/jira/browse/HIVE-7313
> Project: Hive
> Issue Type: Improvement
> Components: Tez
> Affects Versions: 0.14.0
> Reporter: Gopal V
> Assignee: Gopal V
> Labels: InMemory, Performance
> Fix For: 1.1.0
>
> Attachments: HIVE-7313.1.patch, HIVE-7313.2.patch
>
>
> With HDFS storage policies implementation, temporary tables can be written
> with different storage/reliability policies.
> In-session temporary tables can be targetted at both SSD and memory storage
> policies, with fallbacks onto the disk and the associated reliability
> trade-offs.
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