> On April 21, 2015, 4:36 a.m., Parth Chandra wrote:
> > What should our option be to handle clients that do not handle the 
> > exceptions thrown by these methods? We could check an environment variable 
> > and if it is set, then silently return from any of these calls instead of 
> > throwing an exception?
> 
> Daniel Barclay wrote:
>     Yes, we likely need to have multiple modes in order to handle multiple 
> clients, e.g., this change's fail-fast/reliable mode and the mode you 
> describe (the "Yeah, sure, whatever" mode? :-) ).
>     
>     I don't think the configuration mechanism should be an environment 
> variable (unless Drill already uses environment variables for configuration 
> flags).
>     
>     It should probably be a Java system property plus a JDBC URL parameter 
> (something to allow both modes to exist in the same JVM at the same time (for 
> testing, client testing, etc.)).
>     
>     Do you think we need to implement "Yeah, sure, whatever" mode and the 
> flag now (for DRILL-2782)?

Yes I think we should implement it. Using an env variable has the advantage 
that it fits in nicely and simply with the script that launches sqlline.


- Parth


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On April 20, 2015, 3:03 a.m., Daniel Barclay wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/33291/
> -----------------------------------------------------------
> 
> (Updated April 20, 2015, 3:03 a.m.)
> 
> 
> Review request for drill, Mehant Baid and Parth Chandra.
> 
> 
> Bugs: DRILL-2782
>     https://issues.apache.org/jira/browse/DRILL-2782
> 
> 
> Repository: drill-git
> 
> 
> Description
> -------
> 
> - Added unit test.
> - Added implementations of transaction-related methods:
>   - setAutoCommit - reject attempt to turn auto-commit off
>   - commit - reject when in auto-commit mode (which is always)
>   - rollback - reject when in auto-commit mode (which is always)
>    - other mode and metadata methods - roughly, report "no transactions"
> - Added method declarations with doc. comments in Drill-specific interface.
> 
> 
> Diffs
> -----
> 
>   exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillConnection.java a52644d 
>   exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillConnectionImpl.java 
> 3fdbf84 
>   
> exec/jdbc/src/test/java/org/apache/drill/jdbc/ConnectionTransactionMethodsTest.java
>  PRE-CREATION 
>   exec/jdbc/src/test/java/org/apache/drill/jdbc/DatabaseMetaDataTest.java 
> PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/33291/diff/
> 
> 
> Testing
> -------
> 
> Ran new specific tests.
> 
> Ran existing tests; no new problems.
> 
> 
> Thanks,
> 
> Daniel Barclay
> 
>

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