Add collector to target latency metrics #50
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modules/core/src/main/scala/com.snowplowanalytics.snowplow.snowflake/Metrics.scala
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colmsnowplow
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Oct 18, 2024
This version holds onto a map of batches that are in memory but not yet loaded. This means we can report latency of in-memory batches under all of the following circumstances: - Loader is doing long backoff and retry due to snowflake setup issue (e.g. expired password) - Loader is stuck trying to open a connection to snowflake due to a transient network issue - Loader is trying to shutdown due to any other runtime exception
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Jira ref: PDP-1495
This PR adds 2 metrics
latency_collector_to_target_millis: the minimum latency of all batches in the current metric period, where latency of a batch is computed as {load time - max collector_tstamp of the batch}latency_collector_to_target_pessimistic_millis: the maximum latency of all batches in the current metric period, where latency of a batch is computed as {report time - min collector_tstamp of the batch}