hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-9153) Evaluate CombineHiveInputFormat versus HiveInputFormat [Spark Branch]
Date Thu, 18 Dec 2014 03:18:14 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rui Li reassigned HIVE-9153:
----------------------------

    Assignee: Rui Li

> Evaluate CombineHiveInputFormat versus HiveInputFormat [Spark Branch]
> ---------------------------------------------------------------------
>
>                 Key: HIVE-9153
>                 URL: https://issues.apache.org/jira/browse/HIVE-9153
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Brock Noland
>            Assignee: Rui Li
>
> The default InputFormat is {{CombineHiveInputFormat}} and thus HOS uses this. However,
Tez uses {{HiveInputFormat}}. Since tasks are relatively cheap in Spark, it might make sense
for us to use {{HiveInputFormat}} as well. We should evaluate this on a query which has many
input splits such as {{select count(*) from store_sales where something is not null}}.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message