phet commented on code in PR #4031:
URL: https://github.com/apache/gobblin/pull/4031#discussion_r1737160050
##########
gobblin-service/src/main/java/org/apache/gobblin/service/modules/orchestration/DagManagerMetrics.java:
##########
@@ -271,8 +267,7 @@ protected static MetricNameRegexFilter
getMetricsFilterForDagManager() {
}
public void cleanup() {
- // Add null check so that unit test will not affect each other when we
de-active non-instrumented DagManager
- if(this.metricContext != null &&
this.metricContext.getTagMap().get(GobblinMetricsKeys.CLASS_META).equals(DagManager.class.getSimpleName()))
{
+ if (this.metricContext != null &&
this.metricContext.getTagMap().get(GobblinMetricsKeys.CLASS_META).equals(DagManagerMetrics.class.getSimpleName()))
{
// The DMThread's metrics mappings follow the lifecycle of the DMThread
itself and so are lost by DM deactivation-reactivation but the
RootMetricContext is a (persistent) singleton.
// To avoid IllegalArgumentException by the RMC preventing (re-)add of a
metric already known, remove all metrics that a new DMThread thread would
attempt to add (in DagManagerThread::initialize) whenever running
post-re-enablement
RootMetricContext.get().removeMatching(getMetricsFilterForDagManager());
Review Comment:
this code may need reworking (since aspects recorded in the nearby comments
seem to be changing), but at the least, update the remaining comment and also
consider whether to rename `getMetricsFilterForDagManager()`
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