Class

io.github.lhotari.akka.http.health

LowMemoryDetector

Related Doc: package health

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class LowMemoryDetector extends HealthChecker

Detects low memory condition by using JMX API for consuming memory usage and garbage collection notification events.

Uses MemoryPoolMXBean's JMX API to set collection usage threshold. The listener is registered to MemoryMXBean. Garbage collection notification API is also used. This is used to detect if memory usage drops below the threshold after crossing the threshold.

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HealthChecker, AnyRef, Any
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Visibility
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Instance Constructors

  1. new LowMemoryDetector(occupiedHeapPercentageThreshold: Int = 90, gcBeans: Seq[GarbageCollectorMXBean] = ..., memoryPoolBeans: Seq[MemoryPoolMXBean] = ..., memoryBean: MemoryMXBean = ManagementFactory.getMemoryMXBean)

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Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    @throws( ... )

  6. def enteredLowMemoryState(space: MemoryUsage): Unit

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    protected

  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. def exitedLowMemoryState(space: MemoryUsage): Unit

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    protected

  10. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

  11. def findTenuredSpaceGcBeans(): Seq[GarbageCollectorMXBean]

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  12. def findTenuredSpaceMemoryPoolBean(): MemoryPoolMXBean

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  13. val gcBeans: Seq[GarbageCollectorMXBean]

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  14. val gcListener: NotificationListener

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  15. final def getClass(): Class[_]

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  16. def handleGcNotification(info: GarbageCollectionNotificationInfo): Unit

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    protected

  17. def handleMemoryCollectionThresholdExceeded(info: MemoryNotificationInfo): Unit

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    Attributes
    protected

  18. def hashCode(): Int

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  19. def isHealthy(): Boolean

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    LowMemoryDetector → HealthChecker

  20. final def isInstanceOf[T0]: Boolean

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  21. def logErrorMessage(message: String): Unit

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    Attributes
    protected

  22. def lowMemoryDetected: Boolean

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  23. val memoryBean: MemoryMXBean

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  24. val memoryListener: NotificationListener

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  25. val memoryPoolBeans: Seq[MemoryPoolMXBean]

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  26. final def ne(arg0: AnyRef): Boolean

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  27. final def notify(): Unit

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  28. final def notifyAll(): Unit

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  29. val occupiedHeapPercentageThreshold: Int

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  30. def start(): Unit

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    Definition Classes
    LowMemoryDetector → HealthChecker

  31. def stop(): Unit

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    Definition Classes
    LowMemoryDetector → HealthChecker

  32. final def synchronized[T0](arg0: ⇒ T0): T0

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  33. def toString(): String

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  34. final def wait(): Unit

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    @throws( ... )

  35. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )

  36. final def wait(arg0: Long): Unit

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Inherited from HealthChecker

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