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(Khronus Integration 
Reporting Metrics to Khronus
Khronus is an open source, distributed and reactive time series database designed to store, retrieve, analyze and process a large amount of custom metrics.
Getting Started
Kamon khronus module is currently available for Scala 2.10, 2.11 and 2.12.
Supported releases and dependencies are shown below., kamon-khronus, status, jdk, scala, akka, :------:, :------:, :----:, ------------------, :------:, 0.6.7, stable, 1.7+, 1.8+, 2.10, 2.11, 2.12, 2.3.x, 2.4.x, To get started with SBT, simply add the following to your build.sbt
file:
libraryDependencies += "io.kamon" %% "kamon-khronus" % "0.6.7"
Configuration
Set kamon.khronus.host to point to your Khronus instance using a host:port value like 11.22.33.44:1173. Most likely, you will also want to set kamon.khronus.app-name to the application name you wish to report metric as.
These are the configuration keys available and their default values (taken from the reference.conf file supplied with this module):
kamon {
khronus {
host = "127.0.0.1:1173"
app-name = "kamon-khronus"
# Time interval in milliseconds to flush the buffer and send the accumulated metrics.
# It must be less than the smallest time window configured in Khronus.
interval = 3000
# Maximum number of measures to hold in memory within intervals.
# Past this threshold, metrics will be discarded.
max-measures = 500000
}
}
Reported Metrics
This reporter will automatically subscribe itself to the following categories:
- counter.
- histogram.
- gauge.
- trace.
- executor-service.
The other important categories like akka-*, system-metrics, and http-server were not included in this initial version due to time constraints. Also, there are no facilities for filtering categories. Please feel free to jump in!