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https://issues.apache.org/jira/browse/MAHOUT-1772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14953012#comment-14953012
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ASF GitHub Bot commented on MAHOUT-1772:
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GitHub user linahovanessian opened a pull request:
https://github.com/apache/mahout/pull/160
MAHOUT-1772
Sorry for 3 continues check-ins ! I had a problem with my SSH.
The valid change is the latest one , where I set the variable to transient.
private final transient Splitter delimiterPattern;
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/linahovanessian/mahout master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/mahout/pull/160.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #160
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commit 60a37cdba826898cbf3923a389f7f8b6bef4710e
Author: linahovanessian <[email protected]>
Date: 2015-10-12T11:08:52Z
https://issues.apache.org/jira/browse/MAHOUT-1772
commit 7060f7f5f0d7c4bd500500bde90a94e577b2dfdb
Author: linahovanessian <[email protected]>
Date: 2015-10-12T11:18:29Z
https://issues.apache.org/jira/browse/MAHOUT-1772
commit 6dcab141cb9190365f8128cbc84e12ca4301c0bd
Author: linahovanessian <[email protected]>
Date: 2015-10-12T11:27:54Z
https://issues.apache.org/jira/browse/MAHOUT-1772
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> delimiterPattern instance variable of FileDataModel should be marked as a
> Transient field
> -----------------------------------------------------------------------------------------
>
> Key: MAHOUT-1772
> URL: https://issues.apache.org/jira/browse/MAHOUT-1772
> Project: Mahout
> Issue Type: Bug
> Components: Collaborative Filtering
> Affects Versions: 0.11.0
> Reporter: Lina Hovanessian
> Labels: easyfix, easytest
>
> I am trying to implement a recommender using Mahout. To create the DataModel
> I am using FileDataModel type. After creating the Recommender object , I want
> to save the model for later usage , just like what we have in Spark models.
> FileDataModel is implementing and inheriting Serializable classes , so this
> means that it can be Serialized. However when I try to write it the
> "java.io.NotSerializableException: com.google.common.base.Splitter" exception
> is thrown.
> The root cause of this exception is "private final Splitter
> delimiterPattern;" variable of FileDataModel class. It is a non-serializable
> third party class which is not marked as a transient field in the
> FileDataModel class, as a result of this we get the exception mentioned above.
> As a workaround , I created my own "MyFileDataModel" which is an exact copy
> of "FileDataModel" class but the "delimiterPattern" variable is marked as
> transient and it works perfectly. It would be better to mark the field as
> transient in the original class.
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