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Julien Nioche commented on NUTCH-808: ------------------------------------- Hi Enis, {quote} On the other hand, current implementation is ... {quote} What do you mean by current implementation? NutchBase? My gut feeling would be to write a custom framework instead of relying on DataNucleus and use AVRO if possible. I really think that HBase support is urgently needed but am less convinced that we need MySQL in the very short term. I know that Cascading have various Tape/Sink implementations including JDBC, HBase but also SimpleDB. Maybe it would be worth having a look at how they do it? > 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 > Fix For: 2.0 > > > 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. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira