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https://issues.apache.org/jira/browse/CASSANDRA-8581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joshua McKenzie updated CASSANDRA-8581:
---------------------------------------
    Reviewer: Philip Thompson

> Null pointer in cassandra.hadoop.ColumnFamilyRecoderWriter
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-8581
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8581
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: xiangdong Huang
>            Assignee: Brandon Williams
>              Labels: hadoop
>             Fix For: 2.1.x
>
>         Attachments: difference, 屏幕快照 2015-01-08 下午7.59.29.png, 屏幕快照 
> 2015-01-08 下午8.01.15.png, 屏幕快照 2015-01-08 下午8.07.23.png
>
>
> When I run examples/hadoop_word_count. I find that ReducerToFilesystem is 
> correct but when I use ReducerToCassandra, the program will call loadYaml().
> The reason is that the program catch a exception at line 196 of 
> ColumnFamilyRecoderWriter.java. 
> Then it check why the exception occur, then it loadYaml to check if the disk 
> is broken...
> However, the exception is NullPointerException. because the client is not 
> initialized.
>  
> So we need a check to judge whether the client is null. 
> (
> The exception, original code and fixed code are in the attachments.
> )



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