akka.akka-cluster-metrics_2.12.0-M4.2.4.4.source-code.reference.conf Maven / Gradle / Ivy
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# Akka Cluster Metrics Reference Config File #
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# This is the reference config file that contains all the default settings.
# Make your edits in your application.conf in order to override these settings.
# Sigar provisioning:
#
# User can provision sigar classes and native library in one of the following ways:
#
# 1) Use https://github.com/kamon-io/sigar-loader Kamon sigar-loader as a project dependency for the user project.
# Metrics extension will extract and load sigar library on demand with help of Kamon sigar provisioner.
#
# 2) Use https://github.com/kamon-io/sigar-loader Kamon sigar-loader as java agent: `java -javaagent:/path/to/sigar-loader.jar`
# Kamon sigar loader agent will extract and load sigar library during JVM start.
#
# 3) Place `sigar.jar` on the `classpath` and sigar native library for the o/s on the `java.library.path`
# User is required to manage both project dependency and library deployment manually.
# Cluster metrics extension.
# Provides periodic statistics collection and publication throughout the cluster.
akka.cluster.metrics {
# Full path of dispatcher configuration key.
# Use "" for default key `akka.actor.default-dispatcher`.
dispatcher = ""
# How long should any actor wait before starting the periodic tasks.
periodic-tasks-initial-delay = 1s
# Sigar native library extract location.
# Use per-application-instance scoped location, such as program working directory.
native-library-extract-folder = ${user.dir}"/native"
# Metrics supervisor actor.
supervisor {
# Actor name. Example name space: /system/cluster-metrics
name = "cluster-metrics"
# Supervision strategy.
strategy {
#
# FQCN of class providing `akka.actor.SupervisorStrategy`.
# Must have a constructor with signature `(com.typesafe.config.Config)`.
# Default metrics strategy provider is a configurable extension of `OneForOneStrategy`.
provider = "akka.cluster.metrics.ClusterMetricsStrategy"
#
# Configuration of the default strategy provider.
# Replace with custom settings when overriding the provider.
configuration = {
# Log restart attempts.
loggingEnabled = true
# Child actor restart-on-failure window.
withinTimeRange = 3s
# Maximum number of restart attempts before child actor is stopped.
maxNrOfRetries = 3
}
}
}
# Metrics collector actor.
collector {
# Enable or disable metrics collector for load-balancing nodes.
# Metrics collection can also be controlled at runtime by sending control messages
# to /system/cluster-metrics actor: `akka.cluster.metrics.{CollectionStartMessage,CollectionStopMessage}`
enabled = on
# FQCN of the metrics collector implementation.
# It must implement `akka.cluster.metrics.MetricsCollector` and
# have public constructor with akka.actor.ActorSystem parameter.
# Will try to load in the following order of priority:
# 1) configured custom collector 2) internal `SigarMetricsCollector` 3) internal `JmxMetricsCollector`
provider = ""
# Try all 3 available collector providers, or else fail on the configured custom collector provider.
fallback = true
# How often metrics are sampled on a node.
# Shorter interval will collect the metrics more often.
# Also controls frequency of the metrics publication to the node system event bus.
sample-interval = 3s
# How often a node publishes metrics information to the other nodes in the cluster.
# Shorter interval will publish the metrics gossip more often.
gossip-interval = 3s
# How quickly the exponential weighting of past data is decayed compared to
# new data. Set lower to increase the bias toward newer values.
# The relevance of each data sample is halved for every passing half-life
# duration, i.e. after 4 times the half-life, a data sample’s relevance is
# reduced to 6% of its original relevance. The initial relevance of a data
# sample is given by 1 – 0.5 ^ (collect-interval / half-life).
# See http://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
moving-average-half-life = 12s
}
}
# Cluster metrics extension serializers and routers.
akka.actor {
# Protobuf serializer for remote cluster metrics messages.
serializers {
akka-cluster-metrics = "akka.cluster.metrics.protobuf.MessageSerializer"
}
# Interface binding for remote cluster metrics messages.
serialization-bindings {
"akka.cluster.metrics.ClusterMetricsMessage" = akka-cluster-metrics
}
# Globally unique metrics extension serializer identifier.
serialization-identifiers {
"akka.cluster.metrics.protobuf.MessageSerializer" = 10
}
# Provide routing of messages based on cluster metrics.
router.type-mapping {
cluster-metrics-adaptive-pool = "akka.cluster.metrics.AdaptiveLoadBalancingPool"
cluster-metrics-adaptive-group = "akka.cluster.metrics.AdaptiveLoadBalancingGroup"
}
}