[
https://issues.apache.org/jira/browse/HIVE-17669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205020#comment-16205020
]
Lefty Leverenz commented on HIVE-17669:
---------------------------------------
The new configuration parameter is documented in the wiki here (thanks, Mithun):
* [hive.io.sarg.cache.max.weight.mb |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.io.sarg.cache.max.weight.mb]
But the fix versions should include 2.3.1. I've changed that in the wiki and
made some trivial edits.
> Cache to optimize SearchArgument deserialization
> ------------------------------------------------
>
> Key: HIVE-17669
> URL: https://issues.apache.org/jira/browse/HIVE-17669
> Project: Hive
> Issue Type: Improvement
> Components: ORC, Query Processor
> Affects Versions: 2.2.0, 3.0.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Fix For: 3.0.0, 2.4.0, 2.2.1
>
> Attachments: HIVE-17669.3.patch, HIVE-17669.4.patch,
> HIVE-17699.1.patch, HIVE-17699.2.patch
>
>
> And another, from [~selinazh] and [~cdrome]. (YHIVE-927)
> When a mapper needs to process multiple ORC files, it might land up having
> use essentially the same {{SearchArgument}} over several files. It would be
> good not to have to deserialize from string, over and over again. Caching the
> object against the string-form should speed things up.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
