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Fix a possible NPE situation caused by unregisterMetrics() if registerMetrics() fails to execute somehow (e.g. CLI input parameter problem such as cycle number < stride number)

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yabinmeng
2023-10-04 21:49:28 -05:00
parent 2213676cef
commit 47c87c64eb
1 changed files with 4 additions and 2 deletions
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6
engine-core/src/main/java/io/nosqlbench/engine/core/lifecycle/activity/ActivityExecutor.java
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@@ -462,8 +462,10 @@ public class ActivityExecutor implements NBLabeledElement, ActivityController, P
this.threadsGauge = ActivityMetrics.register(new NBFunctionGauge(activity, () -> (double) this.motors.size(), "threads"));
}
private void unregisterMetrics() {
ActivityMetrics.unregister(this.threadsGauge);
this.threadsGauge=null;
if (this.threadsGauge != null) {
ActivityMetrics.unregister(this.threadsGauge);
this.threadsGauge = null;
}
}
private boolean shutdownExecutorService(int secondsToWait) {