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https://issues.apache.org/jira/browse/MAHOUT-545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Dunning resolved MAHOUT-545.
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Resolution: Fixed
Committed.
> GSON not a good fit for deserializing SGD models
> ------------------------------------------------
>
> Key: MAHOUT-545
> URL: https://issues.apache.org/jira/browse/MAHOUT-545
> Project: Mahout
> Issue Type: Bug
> Components: Classification
> Affects Versions: 0.4
> Reporter: Ted Dunning
> Fix For: 0.5
>
>
> The problem is that GSON uses JavaCC which does LL(k) parsing. The way that
> the JSON grammar is expressed causes stack recursion for each element of
> a vector.
> This is evil for parsing large models.
> I will be changing ModelSerializer to fix this and will provide a reverse
> compatible mode for anybody who has been able to serialize/deserialize these
> models in the past. My thought is to just make all the SGD models Writables.
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