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From "Szehon Ho" <>
Subject Review Request 30055: HIVE-9337 : Move more hive.spark.* configurations to HiveConf
Date Mon, 19 Jan 2015 23:16:58 GMT

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Review request for hive and chengxiang li.

Bugs: HIVE-9337

Repository: hive-git


This change allows the Remote Spark Driver's properties to be set dynamically via Hive configuration
(ie, set commands).

Went through the Remote Spark Driver's properties and added them to HiveConf, fixing the descriptions
so that they're more clear in a global context with other Hive properties.  Also fixed a bug
in description that stated default value of max message size is 10MB, should read 50MB.  One
open question is that I did not move 'hive.spark.log.dir' as I could not find where it was
read, and did not know if its still being used somewhere?

The passing of these properties between client (Hive) and RemoteSparkDriver is done via the
properties file.  One note is that these properties have to be appended with 'spark', as SparkConf
only accepts those.  I tried a long time to pass them via 'conf' but found that it won't work
(see SparkSubmitArguments.scala).  It may be possible to pass them each as another argument
(like --hive.spark.XXX=YYY), but I think its more scalable to do it via properties file.

On the Remote Spark Driver side, I kept the defensive logic to provide a default value in
case the conf object doesn't contain the property.  This may occur if a prop is unset. For
this, I had to instantiate a HiveConf on that process to get the default value, as some of
the timeout props need a hiveConf instance to do calculation on.


  common/src/java/org/apache/hadoop/hive/conf/ 068c962 
  ql/src/java/org/apache/hadoop/hive/ql/exec/spark/ 334c191 
  spark-client/src/main/java/org/apache/hive/spark/client/ 865e03e 
  spark-client/src/main/java/org/apache/hive/spark/client/rpc/ ac71ae9 
  spark-client/src/main/java/org/apache/hive/spark/client/rpc/ 5a826ba

  spark-client/src/test/java/org/apache/hive/spark/client/rpc/ a2dd3e6 




Szehon Ho

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