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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2016/01/27 11:12:40 UTC
[jira] [Updated] (HIVE-12470) Allow splits to provide custom
consistent locations, instead of being tied to data locality
[ https://issues.apache.org/jira/browse/HIVE-12470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lefty Leverenz updated HIVE-12470:
----------------------------------
Labels: TODOC2.0 (was: )
> Allow splits to provide custom consistent locations, instead of being tied to data locality
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-12470
> URL: https://issues.apache.org/jira/browse/HIVE-12470
> Project: Hive
> Issue Type: Improvement
> Components: llap
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Labels: TODOC2.0
> Fix For: 2.0.0
>
> Attachments: HIVE-12470.1.txt, HIVE-12470.1.wip.txt, HIVE-12470.2.txt
>
>
> LLAP instances may not run on the same nodes as HDFS, or may run on a subset of the cluster.
> Using split locations based on FileSystem locality is not very useful in such cases - since that guarantees not getting any locality.
> Allow a split to map to a specific location - so that there's a chance of getting cache locality across different queries.
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