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Posted to issues@hive.apache.org by "Szehon Ho (JIRA)" <ji...@apache.org> on 2016/03/07 19:51:40 UTC

[jira] [Updated] (HIVE-13217) Replication for HoS mapjoin small file needs to respect dfs.replication.max

     [ https://issues.apache.org/jira/browse/HIVE-13217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Szehon Ho updated HIVE-13217:
-----------------------------
    Assignee:     (was: Xuefu Zhang)

> Replication for HoS mapjoin small file needs to respect dfs.replication.max
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-13217
>                 URL: https://issues.apache.org/jira/browse/HIVE-13217
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>    Affects Versions: 1.2.1, 2.0.0
>            Reporter: Szehon Ho
>            Priority: Minor
>
> Currently Hive on Spark Mapjoin replicates small table file to a hard-coded value of 10.  See SparkHashTableSinkOperator.MIN_REPLICATION. 
> When dfs.replication.max is less than 10, HoS query fails.  This constant should cap at dfs.replication.max.
> Normally dfs.replication.max seems set at 512.



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