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https://issues.apache.org/jira/browse/NUTCH-808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852840#action_12852840
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Enis Soztutar commented on NUTCH-808:
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A candidate framework is DataNucleus. It has the following benefits.
- Apache 2 license.
- JDO support
- HBase, RDBMS, XML persistance.
I will further investigate whether we can integrate Hadoop writables/Avro
serialization so that objects can be passed from Mapred.
> Evaluate ORM Frameworks which support non-relational column-oriented
> datastores and RDBMs
> ------------------------------------------------------------------------------------------
>
> Key: NUTCH-808
> URL: https://issues.apache.org/jira/browse/NUTCH-808
> Project: Nutch
> Issue Type: Task
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
>
> We have an ORM layer in the NutchBase branch, which uses Avro Specific
> Compiler to compile class definitions given in JSON. Before moving on with
> this, we might benefit from evaluating other frameworks, whether they suit
> our needs.
> We want at least the following capabilities:
> - Using POJOs
> - Able to persist objects to at least HBase, Cassandra, and RDBMs
> - Able to efficiently serialize objects as task outputs from Hadoop jobs
> - Allow native queries, along with standard queries
> Any comments, suggestions for other frameworks are welcome.
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