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https://issues.apache.org/jira/browse/CASSANDRA-21423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Isaac Philip Liu updated CASSANDRA-21423:
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Test and Documentation Plan:
Added 6 tests in CQLSSTableWriterTest. They check:
* The bloom filter now matches the number of keys written (sorted and unsorted
writers, BIG and BTI formats)
* it still works when the writer splits output into multiple SSTables
* no filter is written when bloom filters are disabled
Status: Patch Available (was: Open)
> CQLSSTableWriter produces empty bloom filter
> --------------------------------------------
>
> Key: CASSANDRA-21423
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21423
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Local/SSTable
> Reporter: Lukasz Antoniak
> Assignee: Isaac Philip Liu
> Priority: Normal
> Time Spent: 10m
> Remaining Estimate: 0h
>
> CQLSSTableWriter produces empty Filter.db files when flushing SSTables. This
> causes Cassandra nodes to skip Bloom filter checks on imported SSTables,
> resulting in unnecessary disk reads for every partition key lookup.
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