[
https://issues.apache.org/jira/browse/HIVE-10704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jason Dere updated HIVE-10704:
------------------------------
Attachment: HIVE-10704.2.patch
Patch v2 - removed redundant calls. Also changed the logic so that the memory
for all hashtables are computed at the same time. If we have to do the fallback
logic for one table, we should probably do it for all tables.
> Errors in Tez HashTableLoader when estimated table size is 0
> ------------------------------------------------------------
>
> Key: HIVE-10704
> URL: https://issues.apache.org/jira/browse/HIVE-10704
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-10704.1.patch, HIVE-10704.2.patch
>
>
> Couple of issues:
> - If the table sizes in MapJoinOperator.getParentDataSizes() are 0 for all
> tables, the largest small table selection is wrong and could select the large
> table (which results in NPE)
> - The memory estimates can either divide-by-zero, or allocate 0 memory if the
> table size is 0. Try to come up with a sensible default for this.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
