[
https://issues.apache.org/jira/browse/HIVE-15503?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Prasanth Jayachandran updated HIVE-15503:
-----------------------------------------
Attachment: (was: HIVE-15503.WIP.patch)
> LLAP: Fix use of Runtime.getRuntime.maxMemory in Hive operators
> ---------------------------------------------------------------
>
> Key: HIVE-15503
> URL: https://issues.apache.org/jira/browse/HIVE-15503
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Critical
> Attachments: HIVE-15503.1.patch, HIVE-15503.2.patch
>
>
> {code}
> ql/src/java/org/apache/hadoop/hive/ql/exec/GroupByOperator.java:
> maxHashTblMemory = (long) (memoryPercentage *
> Runtime.getRuntime().maxMemory());
> ql/src/java/org/apache/hadoop/hive/ql/exec/TopNHash.java: // Total Free
> Memory = maxMemory() - Used Memory;
> ql/src/java/org/apache/hadoop/hive/ql/exec/TopNHash.java: long
> totalFreeMemory = Runtime.getRuntime().maxMemory() -
> {code}
> This will not work very well with LLAP because of the memory sharing by
> executors.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
