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mmaprototype: add more MMA related metrics#162562

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5hubh4m:mma_more_metrics
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mmaprototype: add more MMA related metrics#162562
5hubh4m wants to merge 1 commit intocockroachdb:masterfrom
5hubh4m:mma_more_metrics

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@5hubh4m 5hubh4m commented Feb 5, 2026

Add load and capacity related metrics to observe exactly what MMA sees instead of having to perform backwards calculations from raw data.

Fixes: #158681
Epic: CRDB-56265
Release note: None

@5hubh4m 5hubh4m requested a review from wenyihu6 February 5, 2026 20:54
@5hubh4m 5hubh4m requested review from a team as code owners February 5, 2026 20:54
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blathers-crl bot commented Feb 5, 2026

It looks like your PR touches production code but doesn't add or edit any test code. Did you consider adding tests to your PR?

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5hubh4m commented Feb 5, 2026

Screenshot 2026-02-05 at 3 56 31 PM

Preview of the metrics from a roachprod cluster. We can clearly see disk capacities being incorrectly calculated as <100 MiB on a number of stores.

@5hubh4m 5hubh4m requested a review from a team as a code owner February 5, 2026 21:40
@5hubh4m 5hubh4m requested review from nameisbhaskar and shailendra-patel and removed request for a team, nameisbhaskar and shailendra-patel February 5, 2026 21:40
Add load and capacity related metrics to observe
exactly what MMA sees instead of having to perform
backwards calculations from raw data.

Release note: None
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mma: track mma capacity + utilization received in mma store load msg

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