ZooKeeper Metrics

First we need to install Metricbeat.

deb (Debian/Ubuntu)

sudo apt-get install apt-transport-https
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb https://artifacts.elastic.co/packages/oss-6.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-6.x.list

sudo apt-get update && sudo apt-get install metricbeat

rpm (Redhat/Centos)

sudo rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch
echo "[elastic-6.x]
name=Elastic repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md" | sudo tee /etc/yum.repos.d/elastic-beats.repo

sudo yum install metricbeat

sudo chkconfig --add metricbeat

/etc/metricbeat/metricbeat.yml

We'll be shipping to Logstash so that we have the option to run filters before the data is indexed.
Comment out the elasticsearch output block.

## Comment out elasticsearch output
#output.elasticsearch:
#  hosts: ["localhost:9200"]

Uncomment and change the logstash output to match below.

output.logstash:
    hosts: ["your-logstash-host:your-port"]
    loadbalance: true
    ssl.enabled: true

There are several built in metricbeat modules you can use. To enable the Apache ZooKeeper module run.

metricbeat modules list
metricbeat modules enable zookeeper

Each module has its own configuration file where different metricsets can be enabled / disabled. Locate the configuration file for the Apache ZooKeeper module.

/etc/metricbeat/modules.d/zookeeper.yml

By default the following metricsets are disabled. To enable or disable a metric simply comment or uncomment the line out.

- module: zookeeper
 # metricsets:
   # - mntr
   # - server
  period: 10s
  hosts: ["localhost:2181"]

Ok, time to start gathering metrics!

sudo systemctl enable metricbeat
sudo systemctl start metricbeat

The Apache ZooKeeper metricsets were tested with Apache ZooKeeper 3.4.8 and are expected to work with all versions >= 3.4.0. Versions prior to 3.4 do not support the mntr command.