InfluxData's newest data storage engine can handle unlimited cardinality. While high cardinality (https://youtu.be/kHIjROe0ZpA) was something that could affect performance with the Time Series Merge Tree storage engine (https://youtu.be/J4syKnsqQmg), InfluxData developers optimized the new storage engine to easily handle high cardinality data, which makes InfluxDB more performant in high cardinality use cases, like tracing.

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