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Posted to dev@mrql.apache.org by "Leonidas Fegaras (JIRA)" <ji...@apache.org> on 2015/09/10 22:02:45 UTC

[jira] [Created] (MRQL-79) Add support for incremental query processing

Leonidas Fegaras created MRQL-79:
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             Summary: Add support for incremental query processing
                 Key: MRQL-79
                 URL: https://issues.apache.org/jira/browse/MRQL-79
             Project: MRQL
          Issue Type: New Feature
          Components: Run-Time/Spark, Streaming
    Affects Versions: 0.9.6
            Reporter: Leonidas Fegaras
            Assignee: Leonidas Fegaras


This is a new feature for MRQL streaming: its task is to convert any stream-based MRQL query to an incremental query that merges the previous query results with the results of applying the query to the new data batches only. For example, it will be able to convert the MRQL PageRank query to an incremental PageRank query automatically. The basic idea was presented at ApacheCon'15 (page 28 in http://lambda.uta.edu/mrql-apachecon15.pdf ) as a future plan for MRQL. It will work on Spark Streaming mode for now, but later it will support Flink Streaming too.



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