-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/50783/
-----------------------------------------------------------
Review request for lens.
Bugs: LENS-1251
https://issues.apache.org/jira/browse/LENS-1251
Repository: lens
Description
-------
The bug is because of LensSessionImpl.getDBResources() is returning
failedDBResources instead of actual resources.
Changes include :
- Removed failedDBResources from LensSessionImpl - which is not solving the
purpose. Once resource addition has failed, it would fail in subsequent tries
as well.
- Instead of adding resouces to HiveDriver on every execute/explain/prepare and
etc, adding resources on DriverSessionStarted event - synchronously. This will
make sure resources are added whenever new session is created and the
classloader will be uptodate in all cases. For ex: Query on a native table
fails in estimate with earlier code, because jars are not added and HiveDriver
will do explain on the query.
- Book-keeping in LensSessionImpl is only used in tests and all source code
usages are removed.
- Removed book-keeping in HiveDriver which is maintaining whether resources are
added for a session or not.
Diffs
-----
lens-driver-hive/src/main/java/org/apache/lens/driver/hive/HiveDriver.java
1326611
lens-server/src/main/java/org/apache/lens/server/query/QueryExecutionServiceImpl.java
84dcecd
lens-server/src/main/java/org/apache/lens/server/session/LensSessionImpl.java
3003ab7
lens-server/src/test/java/org/apache/lens/server/LensServerTestUtil.java
67cee57
lens-server/src/test/java/org/apache/lens/server/TestServerRestart.java
20aa8cb
lens-server/src/test/java/org/apache/lens/server/metastore/TestMetastoreService.java
61bc133
lens-server/src/test/java/org/apache/lens/server/query/TestQueryService.java
9f40a01
Diff: https://reviews.apache.org/r/50783/diff/
Testing
-------
Added regression test which fails with ClassNotFoundException without the
changes.
Thanks,
Amareshwari Sriramadasu
