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Posted to commits@cassandra.apache.org by "Philip Thompson (JIRA)" <ji...@apache.org> on 2015/12/08 22:40:11 UTC
[jira] [Commented] (CASSANDRA-8581) Null pointer in
cassandra.hadoop.ColumnFamilyRecoderWriter
[ https://issues.apache.org/jira/browse/CASSANDRA-8581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15047511#comment-15047511 ]
Philip Thompson commented on CASSANDRA-8581:
--------------------------------------------
So as far as I can tell, running examples/hadoop_word_count on 2.1.12 works just fine. I don't quite see anything wrong with this patch, but I also don't know that it's necessary.
> 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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