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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9550) ObjectStore.getNextNotification() can return events inside NotificationEventResponse as null which conflicts with its thrift "required" tag
Date Mon, 02 Feb 2015 22:41:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14302083#comment-14302083
] 

Hive QA commented on HIVE-9550:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12696000/HIVE-9550.patch

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 7420 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udaf_histogram_numeric
org.apache.hive.hcatalog.templeton.TestWebHCatE2e.getHiveVersion
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2618/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2618/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-2618/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12696000 - PreCommit-HIVE-TRUNK-Build

> ObjectStore.getNextNotification() can return events inside NotificationEventResponse
as null which conflicts with its thrift "required" tag
> -------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9550
>                 URL: https://issues.apache.org/jira/browse/HIVE-9550
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>         Attachments: HIVE-9550.patch
>
>
> Per hive_metastore.thrift, the "events" list inside NotificationEventResponse is a required
field that cannot be null.
> {code}
> struct NotificationEventResponse {
>     1: required list<NotificationEvent> events,
> }
> {code}
> However, per ObjectStore.java, this events field can be uninitialized if the events retrieved
from the metastore is empty instead of null:
> {code}
>       NotificationEventResponse result = new NotificationEventResponse();
>       int maxEvents = rqst.getMaxEvents() > 0 ? rqst.getMaxEvents() : Integer.MAX_VALUE;
>       int numEvents = 0; 
>       while (i.hasNext() && numEvents++ < maxEvents) {
>         result.addToEvents(translateDbToThrift(i.next()));
>       }    
>       return result;
> {code}
> The fix is simple enough - we need to call result.setEvents(new ArrayList<NotificationEvent>())
before we begin the iteration to do result.addToEvents(...).



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