Disabling Speculative Execution for Hive Based Queries
(Doc ID 1613450.1)
Last updated on OCTOBER 11, 2016
Applies to:Big Data Appliance Integrated Software - Version 2.1.0 and later
When a hive query executed from both Hive client as well as Hue / Beeswax, the mapred.reduce.tasks.speculative.execution parameter is getting set to True.
In the job configuration xml file(job_<id>_conf.xml) generated, below settings are noticed:
hive.mapred.reduce.tasks.speculative.execution = true
mapred.map.tasks.speculative.execution = false
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