Package org.kiwiproject.curator.leader.health

Class ManagedLeaderLatchHealthCheck

java.lang.Object
com.codahale.metrics.health.HealthCheck
org.kiwiproject.curator.leader.health.ManagedLeaderLatchHealthCheck
public class ManagedLeaderLatchHealthCheck extends com.codahale.metrics.health.HealthCheck
Simple check to determine if the leader latch is started (healthy) or otherwise (not healthy).

The check also reports as unhealthy if there is no leader, or if Curator reports more than one leader.

The health check results contain the following details:

Health Check Details
Name Description
leader A boolean that is true if this participant is currently the leader, and false otherwise.
leaderParticipant The ID of the latch participant that is the leader. This will be null if the latch is not started or if no leader is reported.
thisParticipant The ID of this participant.
participants A list containing the IDs of all latch participants. This will be empty if the latch is not started or if no latch participants are reported.

  • Nested Class Summary

    Nested classes/interfaces inherited from class com.codahale.metrics.health.HealthCheck

    com.codahale.metrics.health.HealthCheck.Result, com.codahale.metrics.health.HealthCheck.ResultBuilder

  • Constructor Summary

    Constructors
    Constructor
    Description
    ManagedLeaderLatchHealthCheck(ManagedLeaderLatch leaderLatch)
    New health check instance for the given leader latch.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected com.codahale.metrics.health.HealthCheck.Result
    check()
     

    Methods inherited from class com.codahale.metrics.health.HealthCheck

    clock, execute

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ManagedLeaderLatchHealthCheck

      public ManagedLeaderLatchHealthCheck(ManagedLeaderLatch leaderLatch)
      New health check instance for the given leader latch.
      Parameters:
      leaderLatch - the ManagedLeaderLatch to check

  • Method Details

    • check

      protected com.codahale.metrics.health.HealthCheck.Result check()
      Specified by:
      check in class com.codahale.metrics.health.HealthCheck