Szehon Ho created HIVE-13217:
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Summary: 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: 2.0.0, 1.2.1
Reporter: Szehon Ho
Assignee: Xuefu Zhang
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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