Corey J. Nolet created ACCUMULO-1663:
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Summary: Multi-table/Composite InputFormat example
Key: ACCUMULO-1663
URL: https://issues.apache.org/jira/browse/ACCUMULO-1663
Project: Accumulo
Issue Type: Improvement
Reporter: Corey J. Nolet
Priority: Minor
For services that need to span more than a single table, it would be massively
useful to either:
1) Provide a new input format capable to loading data from multiple tables or
2) Provide an example of extending/wrapping the current input format to provide
such capability.
It's not uncommon to have services that may span multiple tables and for each
to require their own separate server-side iterators. Curent, in order to make
this possible, the AccumuloInputFormat needs to be re-written. Adding the other
table is really just a matter of running more scanners and generating the input
splits for another table. It would be useful if the Accumulo core code base
could provide some sort of composite or multi-table input format by default.
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