GitHub user morokosi opened a pull request:
https://github.com/apache/storm/pull/2295
STORM-2712: accept arbitrary number of rows per tuple in storm-cassandra
Current implementation in `TridentResultSetValuesMapper::map` restricts a
SELECT query to return one row. In `StateQueryProcessor::finishBatch`, it
checks the equality between the result size of `batchRetrieve` and input tuple
size. When the number of result rows is less than 1 or greater than 1, it
breaks the condition and an exception is thrown.
We should accept arbitrary number of rows by adjusting List dimensions.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/morokosi/storm cassandra-resultset-mapper
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/2295.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2295
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commit 58bd51ec88c8eff02d35904e106edd68ea45e6a4
Author: morokosi <moromorokosi+git...@gmail.com>
Date: 2017-08-28T13:59:14Z
STORM-2712: accept arbitrary number of rows per tuple in storm-cassandra
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