adjusted thread metric

Author: sterlp

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## v1.6.6  - (2025-03-20)
+
+### New features:
+- first metrics
+
+### Bug fixes:
+- fixed history delete start of history
+
+
 ## v1.6.5  - (2025-03-19)
 
 -   fixed correlation ID size

core/src/main/java/org/sterl/spring/persistent_tasks/scheduler/SchedulerService.java

@@ -27,7 +27,6 @@
 
 import io.micrometer.core.instrument.Gauge;
 import io.micrometer.core.instrument.MeterRegistry;
-import io.micrometer.core.instrument.Tags;
 import io.micrometer.core.instrument.binder.BaseUnits;
 import jakarta.annotation.PostConstruct;
 import jakarta.annotation.PreDestroy;
@@ -63,17 +62,15 @@ public void start() {
         taskExecutor.start();
         editSchedulerStatus.checkinToRegistry(name, 0, taskExecutor.getMaxThreads());
 
-        Gauge.builder("persistent_tasks.scheduler." + name, 
-                taskExecutor, 
-                e -> e.countRunning())
-            .tags(Tags.of("thread", "running"))
+        Gauge.builder("persistent_tasks.schedulers", 
+                taskExecutor, e -> e.countRunning())
+            .tags("scheduler", name, BaseUnits.TASKS, "running")
             .baseUnit(BaseUnits.TASKS)
             .register(meterRegistry);
 
-        Gauge.builder("persistent_tasks.scheduler." + name, 
-                taskExecutor, 
-                e -> e.getMaxThreads())
-            .tags(Tags.of("thread", "max"))
+        Gauge.builder("persistent_tasks.schedulers", 
+                taskExecutor, e -> e.getMaxThreads())
+            .tags("scheduler", name, BaseUnits.TASKS, "total")
             .baseUnit(BaseUnits.TASKS)
             .register(meterRegistry);
     }