Dmitry Konstantinov created CASSANDRA-21606:
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Summary: Optimize BatchStatement.authorize for the case when a
single table is updated
Key: CASSANDRA-21606
URL: https://issues.apache.org/jira/browse/CASSANDRA-21606
Project: Apache Cassandra
Issue Type: Improvement
Components: Feature/Authorization
Reporter: Dmitry Konstantinov
Attachments: image-2026-08-25-13-32-06-773.png
We spend about 5.4% of CPU to authorize batches with 10 rows, for a write load
if authorization is enabled.
If the table is the same for all rows, we need to check it only once.
write test:
https://issues.apache.org/jira/browse/CASSANDRA-18831?focusedCommentId=18056293&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-18056293
!image-2026-08-25-13-32-06-773.png|width=600!
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