Add more tombstone data to scylla dashboards #4872
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This was referenced Oct 29, 2025
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Motivation
The Scylla monitoring dashboards lacked visibility into tombstone-related metrics, which are critical for diagnosing performance issues and understanding compaction behavior.
Proposal
Enhanced the Scylla dashboards with additional tombstone metrics and visualizations to help operators identify when tombstones are causing performance degradation.
Test Plan
Release Plan