Negative Values Reported Deriving from StatsImpl and RepsponseTimeStatsImpl

[tbradellis]

A pernicious issue that has alluded root cause discovery for some time due to an inability to consistently reproduce it and/or obtain live logging data has finally been reproduced.
Internally, we have information here:
https://newrelic.atlassian.net/browse/GTSE-13353

It looks like in StatsImpl and RepsonseTimeStatsImpl we need to synchronize on a few metric aggregation points.

newrelic-java-agent/newrelic-agent/src/main/java/com/newrelic/agent/stats/ResponseTimeStatsImpl.java

Line 67 in 6be021f

public void recordResponseTimeInNanos(long responseTime, long exclusiveTime) {

newrelic-java-agent/newrelic-agent/src/main/java/com/newrelic/agent/stats/ResponseTimeStatsImpl.java

Line 128 in 6be021f

public final void merge(StatsBase statsObj) {

newrelic-java-agent/newrelic-agent/src/main/java/com/newrelic/agent/stats/StatsImpl.java

Line 57 in 6be021f

public void recordDataPoint(float value) {

newrelic-java-agent/newrelic-agent/src/main/java/com/newrelic/agent/stats/StatsImpl.java

Line 123 in 6be021f

public void merge(StatsBase statsObj) {

The links here should not be considered an exhaustive description of where all the problem exists. Addition metric debug information is provided in the logs from the reporting customers application, so we should double check that there aren't other places that show the Supportability metric for negative values. We should check to see if the DefaultTracer had any hits in those logs.

Additional context

[TIP]: # ( Add any other context about the problem here. For example, relevant community posts or support tickets. )

[kford-newrelic]

Bumped from the 7.6.0 release; will target for the next release.

[kford-newrelic]

Not able to determine root cause after extensive exploration. Deferring this issue as a potential future roadmap consideration. Moving back to Triage.

[kford-newrelic]

Was not able to include in FY23Q1's agent release. Not selected for next quarter's agent roadmap. Will consider for a future agent release.

[kford-newrelic]

Not selected for the agent roadmap. Issue does not appear to be widespread/common.

[workato-integration]

https://new-relic.atlassian.net/browse/NR-170877

[kford-newrelic]

Issue appears to have resolved with #1685