[
https://issues.apache.org/jira/browse/TRAFODION-2604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15993883#comment-15993883
]
ASF GitHub Bot commented on TRAFODION-2604:
-------------------------------------------
GitHub user prashanth-vasudev opened a pull request:
https://github.com/apache/incubator-trafodion/pull/1081
[TRAFODION-2604] sort merge phase memory pool improvements
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/prashanth-vasudev/incubator-trafodion traf2604
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/1081.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1081
----
----
> sort operator merge phase memory pool improvement
> --------------------------------------------------
>
> Key: TRAFODION-2604
> URL: https://issues.apache.org/jira/browse/TRAFODION-2604
> Project: Apache Trafodion
> Issue Type: Bug
> Reporter: Prashanth Vasudev
> Assignee: Prashanth Vasudev
> Fix For: 2.2-incubating
>
>
> Currently, executor sort goes through initial sort phase followed by merge
> phase in overflow situation. The memory pool used during sort phase is not
> efficiently reused for merge phase , causing sort merge to slow down in case
> of large merge. Sort merge happens only if sort overflows.
> Fix is to detect overflow situation and reuse the memory pool for merge phase.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
