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https://issues.apache.org/jira/browse/LENS-661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307959#comment-15307959
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Hudson commented on LENS-661:
-----------------------------
UNSTABLE: Integrated in Lens-Commit-Java8 #170 (See
[https://builds.apache.org/job/Lens-Commit-Java8/170/])
LENS-661: Added Weighted driver selector (rajatgupta59: rev
1774ced2e49d4ffa8f68f1493c1e9a26fc2e119c)
*
lens-server-api/src/test/java/org/apache/lens/server/api/driver/TestWeightedCostSelector.java
* src/site/apt/admin/jdbcdriver-config.apt
*
lens-server-api/src/test/java/org/apache/lens/server/api/driver/TestMinCostSelector.java
*
lens-server-api/src/main/java/org/apache/lens/server/api/LensConfConstants.java
* lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java
*
lens-server-api/src/main/java/org/apache/lens/server/api/driver/WeightedQueryCostDriverSelector.java
> Add Weighted Driver selector for selecting driver among hive and spark drivers
> ------------------------------------------------------------------------------
>
> Key: LENS-661
> URL: https://issues.apache.org/jira/browse/LENS-661
> Project: Apache Lens
> Issue Type: Sub-task
> Components: driver-hive
> Affects Versions: 2.5
> Reporter: Raju Bairishetti
> Assignee: Anshul Gupta
> Fix For: 2.6
>
> Attachments: rb47777.patch
>
>
> Spark Driver also uses hive thrift server as an execution engine. Both spark
> and hive drivers are eligible for executing the same cube query. Right now,
> Jdbc has Query cost 0.0 and Hive driver has 1.0. Spark driver also uses same
> query cost as hive driver which is 1.0.
> We can introduce a weighted driver selector which will submit configured % of
> queries to spark driver for execution.
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