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https://issues.apache.org/jira/browse/CASSANDRA-21474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Williams updated CASSANDRA-21474:
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Bug Category: Parent values: Correctness(12982)
Complexity: Normal
Component/s: Observability/Logging
Discovered By: User Report
Fix Version/s: 6.x
7.x
Severity: Normal
Status: Open (was: Triage Needed)
> NoSpamLogger uses unbounded cache that could lead to memory exhaustion
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-21474
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21474
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Observability/Logging
> Reporter: Kathiresan Selvaraj
> Priority: Normal
> Fix For: 6.x, 7.x
>
>
> The {{NoSpamLogger}} class maintains an unbounded cache of log statement keys
> without any eviction policy, which poses a memory leak risk.
> * Unbounded cache growth: The {{lastMessage}} map in {{NoSpamLogger.java}}
> uses a {{NonBlockingHashMap}} with no size limit or eviction policy.
> * When log messages contain dynamic content (e.g., query strings in
> tombstone warnings), each unique message creates a new cache entry.
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