Make lastMeterRolloverStartTime volatile (#4515)

See gh-4357
micrometer-metrics · Jan 2, 2024 · 2bea6ac · 2bea6ac
1 parent d631b4b
commit 2bea6ac
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diff --git a/...micrometer-registry-otlp/src/main/java/io/micrometer/registry/otlp/OtlpMeterRegistry.java b/...micrometer-registry-otlp/src/main/java/io/micrometer/registry/otlp/OtlpMeterRegistry.java
@@ -89,7 +89,7 @@ public class OtlpMeterRegistry extends PushMeterRegistry {
 
     // Time when the last scheduled rollOver has started. Applicable only for delta
     // flavour.
-    private long lastMeterRolloverStartTime = -1;
+    private volatile long lastMeterRolloverStartTime = -1;
 
     @Nullable
     private ScheduledExecutorService meterPollingService;

diff --git a/micrometer-core/src/main/java/io/micrometer/core/instrument/step/StepMeterRegistry.java b/micrometer-core/src/main/java/io/micrometer/core/instrument/step/StepMeterRegistry.java
@@ -51,7 +51,7 @@ public abstract class StepMeterRegistry extends PushMeterRegistry {
     private ScheduledExecutorService meterPollingService;
 
     // Time when the last scheduled rollOver has started.
-    private long lastMeterRolloverStartTime = -1;
+    private volatile long lastMeterRolloverStartTime = -1;
 
     public StepMeterRegistry(StepRegistryConfig config, Clock clock) {
         super(config, clock);