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From "David Williams (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8944) Runtime NullPointerException in MiniDFSCluster on CentOS and other Linux
Date Sat, 13 Jul 2013 18:41:48 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Williams updated HBASE-8944:
----------------------------------

    Description: 
The HBaseTestingUtility appears to have an unhandled NullPointerException in certain environments.
  It works on Apache HBase 0.94.6.1 on Mac OSX but not in certain Linux environments such
as CentOS. 

In Java:
{code}
HBaseTestingUtility testingUtility = new HBaseTestingUtility();
testingUtility.startMiniCluster(1);  // blows up on CentOS Linux but not Mac OSX
{code}

Creates this exception:
{code}
ERROR in (create-table) (MiniDFSCluster.java:426)
Uncaught exception, not in assertion.
expected: nil
  actual: java.lang.NullPointerException: null
 at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes (MiniDFSCluster.java:426)
    org.apache.hadoop.hdfs.MiniDFSCluster.<init> (MiniDFSCluster.java:284)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniDFSCluster (HBaseTestingUtility.java:444)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:612)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:568)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:555)
{code}

I also created a stack overflow ticket here, with more info:

http://stackoverflow.com/questions/17625938/hbase-minidfscluster-java-fails-in-certain-environments



  was:
The HBaseTestingUtility appears to have an unhandled NullPointerException in certain environments.
  It works on Apache HBase 0.94.6.1 on Mac OSX but not in certain Linux environments such
as CentOS. 

In Java:
{code}
HBaseTestingUtility testingUtility = new HBaseTestingUtility();
testingUtility.startMiniCluster(1);  // blows up on Linux but not Mac OSX
{code}

Creates this exception:
{code}
ERROR in (create-table) (MiniDFSCluster.java:426)
Uncaught exception, not in assertion.
expected: nil
  actual: java.lang.NullPointerException: null
 at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes (MiniDFSCluster.java:426)
    org.apache.hadoop.hdfs.MiniDFSCluster.<init> (MiniDFSCluster.java:284)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniDFSCluster (HBaseTestingUtility.java:444)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:612)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:568)
    org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:555)
{code}

I also created a stack overflow ticket here, with more info:

http://stackoverflow.com/questions/17625938/hbase-minidfscluster-java-fails-in-certain-environments



    
> Runtime NullPointerException in MiniDFSCluster on CentOS and other Linux
> ------------------------------------------------------------------------
>
>                 Key: HBASE-8944
>                 URL: https://issues.apache.org/jira/browse/HBASE-8944
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.6, 0.94.6.1
>            Reporter: David Williams
>
> The HBaseTestingUtility appears to have an unhandled NullPointerException in certain
environments.   It works on Apache HBase 0.94.6.1 on Mac OSX but not in certain Linux environments
such as CentOS. 
> In Java:
> {code}
> HBaseTestingUtility testingUtility = new HBaseTestingUtility();
> testingUtility.startMiniCluster(1);  // blows up on CentOS Linux but not Mac OSX
> {code}
> Creates this exception:
> {code}
> ERROR in (create-table) (MiniDFSCluster.java:426)
> Uncaught exception, not in assertion.
> expected: nil
>   actual: java.lang.NullPointerException: null
>  at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes (MiniDFSCluster.java:426)
>     org.apache.hadoop.hdfs.MiniDFSCluster.<init> (MiniDFSCluster.java:284)
>     org.apache.hadoop.hbase.HBaseTestingUtility.startMiniDFSCluster (HBaseTestingUtility.java:444)
>     org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:612)
>     org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:568)
>     org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster (HBaseTestingUtility.java:555)
> {code}
> I also created a stack overflow ticket here, with more info:
> http://stackoverflow.com/questions/17625938/hbase-minidfscluster-java-fails-in-certain-environments

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