Add span-derived primary tags (CSS v1.3.0)#11402

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dougqh wants to merge 36 commits into

dougqh/control-tag-cardinalityfrom

dougqh/metrics-arbitrary-tags

Commits on Jun 29, 2026

Wire per-component cardinality limits from Config per Cardinality Limits RFC

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Raise RESOURCE cardinality limit to 1024 to avoid premature collapse

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Add span-derived primary tags (CSS v1.3.0)

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Make Canonical schema-swap safe + add additional-tags benchmark

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Rebase dougqh/metrics-arbitrary-tags onto dougqh/control-tag-cardinality

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Use TagCardinalityHandler for additional-tag UTF8 caching + per-tag cardinality

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Drop AdditionalTagsCardinalityLimiter — TagCardinalityHandler per tag is sufficient

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Fix allNull check in toEntry + stale benchmark comments

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Add @Param(limitsEnabled) to AdditionalTagsMetricsBenchmark

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Document limitsEnabled benchmark interpretation + fix stale cap references

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Add @SuppressForbidden to benchmark teardown + key-validation tests

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Store additional tags compactly, mirroring peer tags

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Address #11402 review: trim dead code, fix stale docs, reorder/reduce constructors

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Merge dougqh/control-tag-cardinality + fix stale toEntry javadoc link

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Trim multi-paragraph javadocs to one-liners per conventions

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Fix double-reset, inbox-full regression, empty-string sentinel, and dead blockedSentinels

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Eliminate per-reset StatsD tag allocation via pre-built String[] in handlers

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Move statsDTag[] to handlers; lazy-init on first block

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Merge EMPTY_PEER_TAGS and EMPTY_ADDITIONAL_TAGS into EMPTY_TAGS

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Break circular layering: AdditionalTagsSchema no longer reads AggregateEntry.LIMITS_ENABLED

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Move healthMetrics to last arg in AdditionalTagsSchema.from()

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Fix warnedCardinality never cleared, add property-field warn log, fix SerializingMetricWriter ctor

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Identity fast-path in property handler probes; inline hash loop in Canonical

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Extract static property handlers into PropertyHandlers; fix PeerTagSchema.INTERNAL reset

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Improve test coverage for cardinality handler reset path

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Add end-to-end cycle-reset test for cardinality limits

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Remove committed artifacts; fix stale Javadoc; extract captureTagValues helper

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Remove per-registration warn-once tracking; move cardinality warn to reset; add Config.toString entry

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Move cardinality LIMITS_ENABLED flag to MetricCardinalityLimits; add NO_STATE constant

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Extract shared cardinality-block reporting; rename PeerTagSchema.resetCardinalityHandlers to resetHandlers

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Document why AggregateTable reads cardinality flag fresh from Config

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Fix spotless violations in Config.java imports and ClientStatsAggregatorTest

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Suppress false-positive SpotBugs MT_CORRECTNESS / ES findings on single-writer metrics code

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Migrate MetricsIntegrationTest from Spock/Groovy to JUnit 5 Java

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Inline cardinality-block reporting back into the three handlers; drop CardinalityBlocks

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Fix post-rebase compile errors and remove LIMITS_ENABLED global toggle

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