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Posted to dev@lens.apache.org by Amareshwari Sriramadasu <am...@apache.org> on 2015/02/17 09:23:26 UTC

Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/
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Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.


Bugs: LENS-274
    https://issues.apache.org/jira/browse/LENS-274


Repository: lens


Description
-------

Changes include :

- Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
- Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
- Adds estimate in JDBCDriver which does explain for all queries
- Driver selection logic changed to call estimate instead of explain
- Added unit tests for drivers and server

Still todo :
Priority calculation logic still needs QueryPlan. Will fix this and update patch


Diffs
-----

  lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
  lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
  lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
  lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
  lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
  lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
  lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
  lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
  lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
  lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 

Diff: https://reviews.apache.org/r/31106/diff/


Testing
-------

Tests passed in lens-driver-hive and lens-driver-jdbc. TestQueryService passes. Will update all test results.


Thanks,

Amareshwari Sriramadasu


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Amareshwari Sriramadasu <am...@apache.org>.

> On Feb. 18, 2015, 10:24 a.m., Jaideep dhok wrote:
> > lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java, line 1762
> > <https://reviews.apache.org/r/31106/diff/2/?file=866235#file866235line1762>
> >
> >     Why is this accepted with SubmitOp.EXPLAIN? should it be ESTIMATE?

Copy paste error. Thanks for catching


> On Feb. 18, 2015, 10:24 a.m., Jaideep dhok wrote:
> > lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java, line 52
> > <https://reviews.apache.org/r/31106/diff/2/?file=866232#file866232line52>
> >
> >     public access modifier not needed?

Not required for interface methods. Results in checkstyle error now.


> On Feb. 18, 2015, 10:24 a.m., Jaideep dhok wrote:
> > lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java, line 558
> > <https://reviews.apache.org/r/31106/diff/2/?file=866225#file866225line558>
> >
> >     Same, add query handle to error message

Explain and estimate are not associated with handle. Added user query in the log


> On Feb. 18, 2015, 10:24 a.m., Jaideep dhok wrote:
> > lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java, line 323
> > <https://reviews.apache.org/r/31106/diff/2/?file=866223#file866223line323>
> >
> >     Instead of hardcoding 1 here and 0 in JDBC driver, should we declare two constants in QueryCost itself
> >     INTERACTIVE_COST = 0
> >     BATCH_COST = 1

Added Hive cost and JDBC cost as constants directly.


- Amareshwari


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/#review72939
-----------------------------------------------------------


On Feb. 18, 2015, 11:57 a.m., Amareshwari Sriramadasu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/31106/
> -----------------------------------------------------------
> 
> (Updated Feb. 18, 2015, 11:57 a.m.)
> 
> 
> Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.
> 
> 
> Bugs: LENS-274
>     https://issues.apache.org/jira/browse/LENS-274
> 
> 
> Repository: lens
> 
> 
> Description
> -------
> 
> Changes include :
> 
> - Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
> - Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
> - Adds estimate in JDBCDriver which does explain for all queries
> - Driver selection logic changed to call estimate instead of explain
> - Added unit tests for drivers and server
> 
> Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
> Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.
> 
> 
> Diffs
> -----
> 
>   lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
>   lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
>   lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
>   lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
>   lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveQueryPlan.java e4b5fcc 
>   lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
>   lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
>   lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 
> 
> Diff: https://reviews.apache.org/r/31106/diff/
> 
> 
> Testing
> -------
> 
> [INFO] ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
> [INFO] Lens .............................................. SUCCESS [2.046s]
> [INFO] Lens API .......................................... SUCCESS [6.501s]
> [INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
> [INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
> [INFO] Lens DB storage ................................... SUCCESS [9.939s]
> [INFO] Lens Query Library ................................ SUCCESS [5.275s]
> [INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
> [INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
> [INFO] Lens Server ....................................... SUCCESS [4:30.442s]
> [INFO] Lens client ....................................... SUCCESS [24.899s]
> [INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
> [INFO] Lens Examples ..................................... SUCCESS [0.857s]
> [INFO] Lens Distribution ................................. SUCCESS [10.422s]
> [INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
> [INFO] Lens Regression ................................... SUCCESS [0.453s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 18:00.586s
> [INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
> [INFO] Final Memory: 97M/1218M
> [INFO] ------------------------------------------------------------------------
> 
> 
> Thanks,
> 
> Amareshwari Sriramadasu
> 
>


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Jaideep dhok <ja...@inmobi.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/#review72939
-----------------------------------------------------------



lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java
<https://reviews.apache.org/r/31106/#comment119059>

    typo 'not'



lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java
<https://reviews.apache.org/r/31106/#comment119060>

    Add query handle to error message



lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java
<https://reviews.apache.org/r/31106/#comment119063>

    Instead of hardcoding 1 here and 0 in JDBC driver, should we declare two constants in QueryCost itself
    INTERACTIVE_COST = 0
    BATCH_COST = 1



lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java
<https://reviews.apache.org/r/31106/#comment119061>

    We are throwing LensException here, but NPE in estimate() we should throw the same in both places.



lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java
<https://reviews.apache.org/r/31106/#comment119062>

    Same, add query handle to error message



lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java
<https://reviews.apache.org/r/31106/#comment119064>

    should be OLAP Cube query.



lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java
<https://reviews.apache.org/r/31106/#comment119065>

    public access modifier not needed?



lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java
<https://reviews.apache.org/r/31106/#comment119066>

    Why is this accepted with SubmitOp.EXPLAIN? should it be ESTIMATE?



lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java
<https://reviews.apache.org/r/31106/#comment119067>

    query or session handle in log message


- Jaideep dhok


On Feb. 17, 2015, 9:34 a.m., Amareshwari Sriramadasu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/31106/
> -----------------------------------------------------------
> 
> (Updated Feb. 17, 2015, 9:34 a.m.)
> 
> 
> Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.
> 
> 
> Bugs: LENS-274
>     https://issues.apache.org/jira/browse/LENS-274
> 
> 
> Repository: lens
> 
> 
> Description
> -------
> 
> Changes include :
> 
> - Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
> - Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
> - Adds estimate in JDBCDriver which does explain for all queries
> - Driver selection logic changed to call estimate instead of explain
> - Added unit tests for drivers and server
> 
> Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
> Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.
> 
> 
> Diffs
> -----
> 
>   lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
>   lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
>   lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
>   lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
>   lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
>   lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
>   lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
>   lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 
> 
> Diff: https://reviews.apache.org/r/31106/diff/
> 
> 
> Testing
> -------
> 
> [INFO] ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
> [INFO] Lens .............................................. SUCCESS [2.046s]
> [INFO] Lens API .......................................... SUCCESS [6.501s]
> [INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
> [INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
> [INFO] Lens DB storage ................................... SUCCESS [9.939s]
> [INFO] Lens Query Library ................................ SUCCESS [5.275s]
> [INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
> [INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
> [INFO] Lens Server ....................................... SUCCESS [4:30.442s]
> [INFO] Lens client ....................................... SUCCESS [24.899s]
> [INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
> [INFO] Lens Examples ..................................... SUCCESS [0.857s]
> [INFO] Lens Distribution ................................. SUCCESS [10.422s]
> [INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
> [INFO] Lens Regression ................................... SUCCESS [0.453s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 18:00.586s
> [INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
> [INFO] Final Memory: 97M/1218M
> [INFO] ------------------------------------------------------------------------
> 
> 
> Thanks,
> 
> Amareshwari Sriramadasu
> 
>


Re: Review Request 31106: LENS-327 : Estimate api in drivers and REST api in server

Posted by Rajat Khandelwal <ra...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/#review73113
-----------------------------------------------------------

Ship it!


Ship It!

- Rajat Khandelwal


On Feb. 18, 2015, 6:36 p.m., Amareshwari Sriramadasu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/31106/
> -----------------------------------------------------------
> 
> (Updated Feb. 18, 2015, 6:36 p.m.)
> 
> 
> Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.
> 
> 
> Bugs: LENS-327
>     https://issues.apache.org/jira/browse/LENS-327
> 
> 
> Repository: lens
> 
> 
> Description
> -------
> 
> Changes include :
> 
> - Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
> - Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
> - Adds estimate in JDBCDriver which does explain for all queries
> - Driver selection logic changed to call estimate instead of explain
> - Added unit tests for drivers and server
> 
> Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
> Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.
> 
> 
> Diffs
> -----
> 
>   lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
>   lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
>   lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
>   lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
>   lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveQueryPlan.java e4b5fcc 
>   lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
>   lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
>   lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 
> 
> Diff: https://reviews.apache.org/r/31106/diff/
> 
> 
> Testing
> -------
> 
> [INFO] ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
> [INFO] Lens .............................................. SUCCESS [2.046s]
> [INFO] Lens API .......................................... SUCCESS [6.501s]
> [INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
> [INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
> [INFO] Lens DB storage ................................... SUCCESS [9.939s]
> [INFO] Lens Query Library ................................ SUCCESS [5.275s]
> [INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
> [INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
> [INFO] Lens Server ....................................... SUCCESS [4:30.442s]
> [INFO] Lens client ....................................... SUCCESS [24.899s]
> [INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
> [INFO] Lens Examples ..................................... SUCCESS [0.857s]
> [INFO] Lens Distribution ................................. SUCCESS [10.422s]
> [INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
> [INFO] Lens Regression ................................... SUCCESS [0.453s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 18:00.586s
> [INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
> [INFO] Final Memory: 97M/1218M
> [INFO] ------------------------------------------------------------------------
> 
> 
> Thanks,
> 
> Amareshwari Sriramadasu
> 
>


Re: Review Request 31106: LENS-327 : Estimate api in drivers and REST api in server

Posted by Amareshwari Sriramadasu <am...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/
-----------------------------------------------------------

(Updated Feb. 18, 2015, 1:06 p.m.)


Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.


Summary (updated)
-----------------

LENS-327 : Estimate api in drivers and REST api in server


Bugs: LENS-327
    https://issues.apache.org/jira/browse/LENS-327


Repository: lens


Description
-------

Changes include :

- Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
- Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
- Adds estimate in JDBCDriver which does explain for all queries
- Driver selection logic changed to call estimate instead of explain
- Added unit tests for drivers and server

Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.


Diffs
-----

  lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
  lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
  lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
  lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
  lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveQueryPlan.java e4b5fcc 
  lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
  lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
  lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
  lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
  lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 

Diff: https://reviews.apache.org/r/31106/diff/


Testing
-------

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
[INFO] Lens .............................................. SUCCESS [2.046s]
[INFO] Lens API .......................................... SUCCESS [6.501s]
[INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
[INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
[INFO] Lens DB storage ................................... SUCCESS [9.939s]
[INFO] Lens Query Library ................................ SUCCESS [5.275s]
[INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
[INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
[INFO] Lens Server ....................................... SUCCESS [4:30.442s]
[INFO] Lens client ....................................... SUCCESS [24.899s]
[INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
[INFO] Lens Examples ..................................... SUCCESS [0.857s]
[INFO] Lens Distribution ................................. SUCCESS [10.422s]
[INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
[INFO] Lens Regression ................................... SUCCESS [0.453s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18:00.586s
[INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
[INFO] Final Memory: 97M/1218M
[INFO] ------------------------------------------------------------------------


Thanks,

Amareshwari Sriramadasu


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Amareshwari Sriramadasu <am...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/
-----------------------------------------------------------

(Updated Feb. 18, 2015, 11:57 a.m.)


Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.


Changes
-------

Review comments addressed


Bugs: LENS-274
    https://issues.apache.org/jira/browse/LENS-274


Repository: lens


Description
-------

Changes include :

- Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
- Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
- Adds estimate in JDBCDriver which does explain for all queries
- Driver selection logic changed to call estimate instead of explain
- Added unit tests for drivers and server

Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.


Diffs (updated)
-----

  lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
  lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
  lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
  lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
  lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveQueryPlan.java e4b5fcc 
  lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
  lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
  lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
  lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
  lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 

Diff: https://reviews.apache.org/r/31106/diff/


Testing
-------

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
[INFO] Lens .............................................. SUCCESS [2.046s]
[INFO] Lens API .......................................... SUCCESS [6.501s]
[INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
[INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
[INFO] Lens DB storage ................................... SUCCESS [9.939s]
[INFO] Lens Query Library ................................ SUCCESS [5.275s]
[INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
[INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
[INFO] Lens Server ....................................... SUCCESS [4:30.442s]
[INFO] Lens client ....................................... SUCCESS [24.899s]
[INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
[INFO] Lens Examples ..................................... SUCCESS [0.857s]
[INFO] Lens Distribution ................................. SUCCESS [10.422s]
[INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
[INFO] Lens Regression ................................... SUCCESS [0.453s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18:00.586s
[INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
[INFO] Final Memory: 97M/1218M
[INFO] ------------------------------------------------------------------------


Thanks,

Amareshwari Sriramadasu


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Amareshwari Sriramadasu <am...@apache.org>.

> On Feb. 17, 2015, 10:22 a.m., Rajat Khandelwal wrote:
> > lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java, line 78
> > <https://reviews.apache.org/r/31106/diff/2/?file=866218#file866218line78>
> >
> >     Instead of keeping boolean `error`, we can compute `this.errorMsg == null || this.errorMsg.isEmpty()` in a separate getter-like method.

error field is useful in XML. When reading it JAXB object, user can simply check for boolean. When ErrorMsg is replaced with detailed error with a complex class, it becomes handy


- Amareshwari


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/#review72687
-----------------------------------------------------------


On Feb. 18, 2015, 11:57 a.m., Amareshwari Sriramadasu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/31106/
> -----------------------------------------------------------
> 
> (Updated Feb. 18, 2015, 11:57 a.m.)
> 
> 
> Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.
> 
> 
> Bugs: LENS-274
>     https://issues.apache.org/jira/browse/LENS-274
> 
> 
> Repository: lens
> 
> 
> Description
> -------
> 
> Changes include :
> 
> - Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
> - Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
> - Adds estimate in JDBCDriver which does explain for all queries
> - Driver selection logic changed to call estimate instead of explain
> - Added unit tests for drivers and server
> 
> Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
> Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.
> 
> 
> Diffs
> -----
> 
>   lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
>   lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
>   lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
>   lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
>   lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveQueryPlan.java e4b5fcc 
>   lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
>   lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
>   lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 
> 
> Diff: https://reviews.apache.org/r/31106/diff/
> 
> 
> Testing
> -------
> 
> [INFO] ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
> [INFO] Lens .............................................. SUCCESS [2.046s]
> [INFO] Lens API .......................................... SUCCESS [6.501s]
> [INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
> [INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
> [INFO] Lens DB storage ................................... SUCCESS [9.939s]
> [INFO] Lens Query Library ................................ SUCCESS [5.275s]
> [INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
> [INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
> [INFO] Lens Server ....................................... SUCCESS [4:30.442s]
> [INFO] Lens client ....................................... SUCCESS [24.899s]
> [INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
> [INFO] Lens Examples ..................................... SUCCESS [0.857s]
> [INFO] Lens Distribution ................................. SUCCESS [10.422s]
> [INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
> [INFO] Lens Regression ................................... SUCCESS [0.453s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 18:00.586s
> [INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
> [INFO] Final Memory: 97M/1218M
> [INFO] ------------------------------------------------------------------------
> 
> 
> Thanks,
> 
> Amareshwari Sriramadasu
> 
>


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Rajat Khandelwal <ra...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/#review72687
-----------------------------------------------------------



lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java
<https://reviews.apache.org/r/31106/#comment118755>

    Instead of keeping boolean `error`, we can compute `this.errorMsg == null || this.errorMsg.isEmpty()` in a separate getter-like method.



lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java
<https://reviews.apache.org/r/31106/#comment118756>

    Assert the error message?



lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java
<https://reviews.apache.org/r/31106/#comment118757>

    HiveDriver has two separate test cases for existing table and non-existant table. JdbcDriver has single test combining the two. Please make this consistent.



lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java
<https://reviews.apache.org/r/31106/#comment118758>

    Change javadoc according to name change


- Rajat Khandelwal


On Feb. 17, 2015, 3:04 p.m., Amareshwari Sriramadasu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/31106/
> -----------------------------------------------------------
> 
> (Updated Feb. 17, 2015, 3:04 p.m.)
> 
> 
> Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.
> 
> 
> Bugs: LENS-274
>     https://issues.apache.org/jira/browse/LENS-274
> 
> 
> Repository: lens
> 
> 
> Description
> -------
> 
> Changes include :
> 
> - Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
> - Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
> - Adds estimate in JDBCDriver which does explain for all queries
> - Driver selection logic changed to call estimate instead of explain
> - Added unit tests for drivers and server
> 
> Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
> Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.
> 
> 
> Diffs
> -----
> 
>   lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
>   lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
>   lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
>   lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
>   lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
>   lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
>   lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
>   lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
>   lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
>   lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
>   lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
>   lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
>   lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
>   lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 
> 
> Diff: https://reviews.apache.org/r/31106/diff/
> 
> 
> Testing
> -------
> 
> [INFO] ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
> [INFO] Lens .............................................. SUCCESS [2.046s]
> [INFO] Lens API .......................................... SUCCESS [6.501s]
> [INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
> [INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
> [INFO] Lens DB storage ................................... SUCCESS [9.939s]
> [INFO] Lens Query Library ................................ SUCCESS [5.275s]
> [INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
> [INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
> [INFO] Lens Server ....................................... SUCCESS [4:30.442s]
> [INFO] Lens client ....................................... SUCCESS [24.899s]
> [INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
> [INFO] Lens Examples ..................................... SUCCESS [0.857s]
> [INFO] Lens Distribution ................................. SUCCESS [10.422s]
> [INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
> [INFO] Lens Regression ................................... SUCCESS [0.453s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 18:00.586s
> [INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
> [INFO] Final Memory: 97M/1218M
> [INFO] ------------------------------------------------------------------------
> 
> 
> Thanks,
> 
> Amareshwari Sriramadasu
> 
>


Re: Review Request 31106: LENS-274 : Estimate api in drivers and REST api in server

Posted by Amareshwari Sriramadasu <am...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/31106/
-----------------------------------------------------------

(Updated Feb. 17, 2015, 9:34 a.m.)


Review request for lens, Himanshu Gahlaut, Jaideep dhok, Rajat Khandelwal, and Srikanth Sundarrajan.


Bugs: LENS-274
    https://issues.apache.org/jira/browse/LENS-274


Repository: lens


Description (updated)
-------

Changes include :

- Adds REST api with ESTIMATE submit option for POST on queryapi/queries, which returns EstimateResult - which contains QueryCost, if successful, error otherwise.
- Adds estimate in HiveDriver which does explain for native table queries and nothing for OLAP queries
- Adds estimate in JDBCDriver which does explain for all queries
- Driver selection logic changed to call estimate instead of explain
- Added unit tests for drivers and server

Priority calculation logic still needs QueryPlan. Calling explain as part of execute in this patch. 
Created https://issues.apache.org/jira/browse/LENS-323 to use cube query context for priority.


Diffs (updated)
-----

  lens-api/src/main/java/org/apache/lens/api/query/EstimateResult.java PRE-CREATION 
  lens-api/src/main/java/org/apache/lens/api/query/QuerySubmitResult.java ee64081 
  lens-api/src/main/java/org/apache/lens/api/query/SubmitOp.java 37e6f55 
  lens-cube/src/main/java/org/apache/lens/driver/cube/RewriteUtil.java 4f284a7 
  lens-cube/src/test/java/org/apache/lens/driver/cube/TestMinCostSelector.java 95aed16 
  lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java 6da1884 
  lens-driver-hive/src/test/java/org/apache/lens/driver/hive/TestHiveDriver.java 0b118de 
  lens-driver-jdbc/src/main/java/org/apache/lens/driver/jdbc/JDBCDriver.java 5e8163e 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJDBCFinal.java 8ad8d03 
  lens-driver-jdbc/src/test/java/org/apache/lens/driver/jdbc/TestJdbcDriver.java 0af38b1 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/LensDriver.java c732e09 
  lens-server-api/src/main/java/org/apache/lens/server/api/driver/MinQueryCostSelector.java 9fc5b20 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/AbstractQueryContext.java 31ad625 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/DriverSelectorQueryContext.java 313d5a7 
  lens-server-api/src/main/java/org/apache/lens/server/api/query/QueryExecutionService.java 971c7db 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockDriver.java 02bf324 
  lens-server-api/src/test/java/org/apache/lens/server/api/driver/MockFailDriver.java 433914a 
  lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java ca22b04 
  lens-server/src/main/java/org/apache/lens/server/query/QueryServiceResource.java 8d6037f 
  lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java 9b3ae68 

Diff: https://reviews.apache.org/r/31106/diff/


Testing (updated)
-------

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Lens Checkstyle Rules ............................. SUCCESS [1.799s]
[INFO] Lens .............................................. SUCCESS [2.046s]
[INFO] Lens API .......................................... SUCCESS [6.501s]
[INFO] Lens API for server and extensions ................ SUCCESS [5.257s]
[INFO] Lens Cube ......................................... SUCCESS [6:39.334s]
[INFO] Lens DB storage ................................... SUCCESS [9.939s]
[INFO] Lens Query Library ................................ SUCCESS [5.275s]
[INFO] Lens Hive Driver .................................. SUCCESS [2:37.085s]
[INFO] Lens Driver for JDBC .............................. SUCCESS [23.503s]
[INFO] Lens Server ....................................... SUCCESS [4:30.442s]
[INFO] Lens client ....................................... SUCCESS [24.899s]
[INFO] Lens CLI .......................................... SUCCESS [1:58.019s]
[INFO] Lens Examples ..................................... SUCCESS [0.857s]
[INFO] Lens Distribution ................................. SUCCESS [10.422s]
[INFO] Lens ML Lib ....................................... SUCCESS [43.884s]
[INFO] Lens Regression ................................... SUCCESS [0.453s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18:00.586s
[INFO] Finished at: Tue Feb 17 09:32:35 UTC 2015
[INFO] Final Memory: 97M/1218M
[INFO] ------------------------------------------------------------------------


Thanks,

Amareshwari Sriramadasu