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Posted to commits@cassandra.apache.org by "Isaac Philip Liu (Jira)" <ji...@apache.org> on 2026/10/17 07:23:00 UTC

[jira] [Updated] (CASSANDRA-21423) CQLSSTableWriter produces empty bloom filter

     [ https://issues.apache.org/jira/browse/CASSANDRA-21423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Isaac Philip Liu updated CASSANDRA-21423:
-----------------------------------------
    Change Category: Performance
         Complexity: Normal
        Component/s: Local/SSTable
             Status: Open  (was: Triage Needed)

> 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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