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https://issues.apache.org/jira/browse/MAHOUT-431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremy Handcock updated MAHOUT-431:
-----------------------------------
Status: Patch Available (was: Open)
Fix Version/s: 0.4
> NPE in CBayesThetaNormalizerReducer when using HBase
> ----------------------------------------------------
>
> Key: MAHOUT-431
> URL: https://issues.apache.org/jira/browse/MAHOUT-431
> Project: Mahout
> Issue Type: Bug
> Components: Classification
> Affects Versions: 0.3, 0.4
> Reporter: Jeremy Handcock
> Fix For: 0.4
>
> Attachments: CBayesThetaNormalizerReducer.patch
>
>
> I'm trying to use the complementary Bayes classifier and store the model in
> HBase (using BayesParameters.set("dataSource", "hbase")). When I run the MR
> jobs using CBayesDrvier, I get a NullPointerException in
> CBayesThetaNormalizerReducer at line 92:
> hBconf.set(new HBaseConfiguration(job));
> 'hBconf' is a ThreadLocal<HBaseConfiguration> field and it looks like it has
> not been initialized. I initialized it and the model built successfully. I
> observed the same bug in the 0.3 release and in 0.4-SNAPSHOT. I'll attach a
> patch that initializes the field.
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