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https://issues.apache.org/jira/browse/HBASE-23990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17133369#comment-17133369
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Josh Elser commented on HBASE-23990:
------------------------------------

Looks like in master, we have a different failure happenign before we even get 
to this one now:
{noformat}
[ERROR] Tests run: 2, Failures: 1, Errors: 0, Skipped: 1, Time elapsed: 9.048 s 
<<< FAILURE! - in org.apache.hadoop.hbase.coprocessor.TestSecureExport
[ERROR] org.apache.hadoop.hbase.coprocessor.TestSecureExport.testAccessCase  
Time elapsed: 4.534 s  <<< FAILURE!
java.lang.AssertionError: Expected exception was not thrown for user 'rouser'
        at 
org.apache.hadoop.hbase.coprocessor.TestSecureExport.testAccessCase(TestSecureExport.java:319)

[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 10.079 
s <<< FAILURE! - in org.apache.hadoop.hbase.coprocessor.TestSecureExport
[ERROR] org.apache.hadoop.hbase.coprocessor.TestSecureExport  Time elapsed: 
10.074 s  <<< ERROR!
org.apache.kerby.kerberos.kerb.KrbException: Failed to load or create keytab 
/home/jenkins/jenkins-slave/workspace/HBase_Nightly_master@2/component/hbase-endpoint/target/test-data/eb7595e2-b455-56fa-3391-6788fc395451/keytab
        at 
org.apache.hadoop.hbase.coprocessor.TestSecureExport.setUpKdcServer(TestSecureExport.java:132)
        at 
org.apache.hadoop.hbase.coprocessor.TestSecureExport.beforeClass(TestSecureExport.java:202)
Caused by: java.io.IOException: No such file or directory
        at 
org.apache.hadoop.hbase.coprocessor.TestSecureExport.setUpKdcServer(TestSecureExport.java:132)
        at 
org.apache.hadoop.hbase.coprocessor.TestSecureExport.beforeClass(TestSecureExport.java:202)
 {noformat}
This one looks a bit more obvious. Maybe a synchronization issue (and related 
to me running tests in parallel)?

> [Flakey Tests] TestSecureExport.testVisibilityLabels fails with SaslException
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-23990
>                 URL: https://issues.apache.org/jira/browse/HBASE-23990
>             Project: HBase
>          Issue Type: Bug
>          Components: flakies
>            Reporter: Michael Stack
>            Priority: Major
>
> It fails on one of the three hosts I'm using to run tests. It fails every 
> time. Here is the complaint:
> {code}
> java.io.IOException: Failed on local exception: java.io.IOException: 
> javax.security.sasl.SaslException: GSS initiate failed [Caused by 
> GSSException: No valid credentials provided (Mechanism level: Bad file 
> descriptor (Write failed))]; Host Details : local host is: 
> "stack.example.org/X.X.X.X"; destination host is: "localhost":61294;
>         at 
> org.apache.hadoop.hbase.coprocessor.TestSecureExport.lambda$testVisibilityLabels$7(TestSecureExport.java:422)
>         at 
> org.apache.hadoop.hbase.coprocessor.TestSecureExport.testVisibilityLabels(TestSecureExport.java:426)
> {code}
> (Line numbers are a little off because I've been messing around in code... 
> trying to figure how to get it to pass).
> I'm going to just disable the failing test in sub-issue until someone has a 
> chance to look at it. This is an old one but its stopping me make progress on 
> test stability on one of my machines and figuring this sort of failure is of 
> low priority for myself at the moment at least.



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