[HIVE-13829] Property "hive.mapjoin.optimized.keys" does not exist

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.0.0
• Component/s: Configuration

Environment

Hadoop 2.7.2, Hive 2.0.0, Spark 1.6.1, Kerberos

• Assignee: Shannon Ladymon
• Reporter: Alexandre Linte
• Created: 24/May/16 07:22
• Updated: 02/Jun/16 17:02
• Resolved: 02/Jun/16 17:02

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

Issue Links

• relates to: HIVE-9331 get rid of pre-optimized-hashtable memory optimizations