Missing basePath in Bayes job / InMemoryDataStore
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Key: MAHOUT-580
URL: https://issues.apache.org/jira/browse/MAHOUT-580
Project: Mahout
Issue Type: Bug
Components: Classification
Affects Versions: 0.4
Reporter: Sean Owen
Assignee: Robin Anil
Fix For: 0.5
Reported on user@ by Pierre Mage:
I found the following issue in the trunk: If the dataSource option is "hdfs"
in org.apache.mahout.classifier.
Classify, there is a problem with InMemoryBayesDatastore because its
basePath param is not defined :
To fix it, I edited Classify like this:
122. if ("hdfs".equals(dataSource)) {
123. params.set("basePath", modelBasePath);
Yes, looks like InMemoryDataStore expects this to be set -- so does
HBaseDataStore. But that takes the base path (table) separately as a param. And
InMemoryDataStore doesn't take it at all. I adjusted this since it seems
correct. And then tried to centralized handling of Bayes params in
BayesParameters since it seems to get half processed in this class only.
I have attached my own rather more elaborate patch that reflects this.
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