Yifan Cai created CASSANDRA-19334:
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Summary: [Analytics] Upgrade to Cassandra 4.0.12 and remove
RowBufferMode and BatchSize options
Key: CASSANDRA-19334
URL: https://issues.apache.org/jira/browse/CASSANDRA-19334
Project: Cassandra
Issue Type: Improvement
Reporter: Yifan Cai
Assignee: Yifan Cai
In cassandra-all:4.0.12, improvements were made for the CQLSSTableWriter. The
sorted writer now can produce size-capped SSTables. It replaces the need for
the unsorted sstable writer, which has to buffer and sort data on flushing. The
dataset to write in the spark application is already sorted. By avoiding using
the unsorted writer, it prevents wasting CPU time on sorting the sorted data.
Since the sorted sstable writer does not need to buffer data, its size
estimation is more accurate than the unsorted one, meaning the produced
sstables files are closer to the expectation.
By removing the unsorted sstable writer, it no longer requires the
RowBufferMode option.
By supporting size-capping in sorted writer, it no longer requires the
BatchSize option.
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