Steven Lowenthal created CASSANDRA-5336:
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Summary: C* crashes with an OOM error when using the Simba Driver
on a very wide table
Key: CASSANDRA-5336
URL: https://issues.apache.org/jira/browse/CASSANDRA-5336
Project: Cassandra
Issue Type: Bug
Components: API
Affects Versions: 1.1.6
Environment: C* on a Mac with 1GB VM. Simba ODBC driver
Reporter: Steven Lowenthal
The Simba driver executes a version of a count(*) query:
SELECT SUM(1) from nhanes3 having sum(1) > 0. It uses this format so ODBC
returns a no rows found error if the table is empty. It translates into a
series of get_range_slice calls which bring back all of the rows, and for every
row, it brings back every single column name. C* crashes with an OOM in the
thrift code. The table has almost 600 columns of mixed text and numeric data
with many empty values.
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