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From "Rob Wu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5659) C++ Client (master) behavior is unstable resulting incorrect result or exception in API calls
Date Tue, 11 Jul 2017 18:27:02 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16082702#comment-16082702

Rob Wu commented on DRILL-5659:

Hi Robert,

This is not a blocking issue atm. But it should definitely be looked at before the 1.11 release
so it does not affect the upcoming driver release. This issue only occurs on 1.11 Snapshot
C++ client, so 1.10 and below are not affected.


> C++ Client (master) behavior is unstable resulting incorrect result or exception in API
> ---------------------------------------------------------------------------------------------
>                 Key: DRILL-5659
>                 URL: https://issues.apache.org/jira/browse/DRILL-5659
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Rob Wu
>             Fix For: 1.11.0
>         Attachments: 1-10cppClient-1.10.0Drillbit-hive.log, 1-10cppClient-1.10.0Drillbit-metadata
and catalog test.log, 1-10cppClient-1.9.0Drillbit-dfs.log, 1-10cppClient-1.9.0Drillbit-metadata
and catalog test.log, 1-11cppClient-1.10.0Drillbit-hive.log, 1-11cppClient-1.10.0Drillbit-metadata
and catalog test.log, 1-11cppClient-1.9.0Drillbit-dfs.log, 1-11cppClient-1.9.0Drillbit-metadata
and catalog test.log
> I recently compiled the C++ client (on windows) from master and tested against a 1.9.0
drillbit. The client's behavior does not meet the stable release requirement.
> Some API functionalities are broken and should be investigated.
> Most noticeable is the getColumns(...) call. It will throw an exception with "Cannot
decode getcolumns results" when the number of rows (column records) exceeds a certain number.

> I also noticed that: during query execution + data retrieval, if the table is large enough,
the result coming back will start to become NULL or empty.
> I will see if I can generate some drillclient logs to put in the attachment.
> I will also compile and test on other platforms.

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