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  1. Hive
  2. HIVE-13829

Property "hive.mapjoin.optimized.keys" does not exist

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Not A Problem
    • 2.0.0
    • None
    • Configuration
    • None
    • Hadoop 2.7.2, Hive 2.0.0, Spark 1.6.1, Kerberos

    Description

      Refering to the documentation (https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties), it is possible to set the following property "hive.mapjoin.optimized.keys". Unfortunately, this property seems to be unknown to Hive.
      Here is an extract of the hive-site.xml which includes the property:

        <property>
            <name>hive.mapjoin.optimized.hashtable</name>
            <value>true</value>
            <description>Whether Hive should use a memory-optimized hash table for MapJoin. Only works on Tez, because memory-optimized hash table cannot be serialized.</description>
        </property>
      

      In the logs I have:

      May 24 09:09:02 hiveserver2.bigdata.fr HiveConf of name hive.mapjoin.optimized.keys does not exist
      

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            sladymon Shannon Ladymon Assign to me
            BigDataOrange Alexandre Linte
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