Apache ZooKeeper monitoring with Netdata

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

This module monitors one or more ZooKeeper servers, depending on your configuration.

Requirements#

  • Zookeeper with accessible client port
  • whitelisted mntr command

Charts#

It produces the following charts:

  • Outstanding Requests in requests
  • Requests Latency in ms
  • Alive Connections in connections
  • Packets in pps
  • Open File Descriptors in file descriptors
  • Number of Nodes in nodes
  • Number of Watches in watches
  • Approximate Data Tree Size in KiB
  • Server State in state

Configuration#

Edit the go.d/zookeeper.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/zookeeper.conf

Needs only address to server's client port. Here is an example for 2 servers:

jobs:
- name: local
address: 127.0.0.1:2181
- name: remote
address: 203.0.113.10:2182

For all available options, please see the module configuration file.

Troubleshooting#

To troubleshoot issues with the zookeeper collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

First, navigate to your plugins directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s

You can now run the go.d.plugin to debug the collector:

./go.d.plugin -d -m zookeeper
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