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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-337) Generic StorageHandler to provide common storage methods
Date Wed, 27 Nov 2013 04:21:35 GMT
Hyunsik Choi created TAJO-337:
---------------------------------

             Summary: Generic StorageHandler to provide common storage methods
                 Key: TAJO-337
                 URL: https://issues.apache.org/jira/browse/TAJO-337
             Project: Tajo
          Issue Type: Improvement
          Components: catalog, storage
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 1.0-incubating


Currently, Tajo uses HDFS as a primary storage. But, as a data warehouse system, Tajo should
easily support various data sources.

For this, I propose a generic storage handler interface that provides common storage methods:
* splitting input data
* finding a cluster node which is nearest neighbor to data
* accessing catalog
* creating a table
* removing a table

The above methods are derived from query proecssing mechanism on data sets stored in HDFS.

Later, we can add easily storage handlers for HBase or other data sources.



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