Puppet Class: profile::hadoop::monitoring::datanode

Defined in:
modules/profile/manifests/hadoop/monitoring/datanode.pp

Overview

SPDX-License-Identifier: Apache-2.0 Class: profile::hadoop::monitoring::datanode

Sets up Prometheus based monitoring for the Hadoop HDFS Datanode. This profile takes care of installing the Prometheus exporter and setting up its configuration file, but it does not instruct the target JVM to use it.

Parameters:

  • hadoop_cluster_name (String) (defaults to: lookup('profile::hadoop::common::hadoop_cluster_name')) 


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# File 'modules/profile/manifests/hadoop/monitoring/datanode.pp', line 8

class profile::hadoop::monitoring::datanode(
    String $hadoop_cluster_name           = lookup('profile::hadoop::common::hadoop_cluster_name'),
){

    $jmx_exporter_config_file = '/etc/prometheus/hdfs_datanode_jmx_exporter.yaml'
    $prometheus_jmx_exporter_datanode_port = 51010
    profile::prometheus::jmx_exporter { "hdfs_datanode_${::hostname}":
        hostname    => $::hostname,
        port        => $prometheus_jmx_exporter_datanode_port,
        # Label these metrics with the hadoop cluster name.
        labels      => { 'hadoop_cluster' => $hadoop_cluster_name },
        config_file => $jmx_exporter_config_file,
        config_dir  => '/etc/prometheus',
        source      => 'puppet:///modules/profile/hadoop/prometheus_hdfs_datanode_jmx_exporter.yaml',
    }
}