Monitoring Zookeeper
After you install the Instana host agent, Zookeeper sensor, which is used to monitor Zookeeper, is automatically installed and configured. You don't need to do any manual configurations and can view metrics that are related to Zookeeper in the Instana UI directly.
Support information
The Apache Zookeeper sensor now supports the Zookeeper versions: 3.7.2, 3.8.4 and 3.9.3
Supported versions and support policy
The following table shows the latest supported version and support policy:
| Technology | Support policy | Latest technology version | Latest supported version |
|---|---|---|---|
| Zookeeper | 45 days | 3.9.5 | 3.9.4 |
For more information about the support policy, see Support strategy for sensors.
Configuring Zookeeper monitoring
The agent natively monitors Zookeeper, and configuration is optional.
Configuring the polling rate
You can configure how often Instana polls Zookeeper to collect data and metrics by using the poll_rate parameter in the agent configuration.yaml file as shown in the following example:
com.instana.plugin.zookeeper:
poll_rate: 1 # values are in seconds. Default value is 1 second.Viewing metrics
To view the metrics, complete the following steps:
- In the sidebar of the Instana UI, select Infrastructure.
- Click a specific monitored host where Zookeeper is installed.
You can see a host dashboard with the following performance metrics, configuration data, and health signatures.
Configuration data
- Version
- Client
- Started At
- Mode
- State (for a replicated zookeeper)
Performance metrics
- Latency
- Requests
- Connections
- Packets
- Ticks (for a replicated zookeeper)
- Zxid (transaction id)
Health signatures
Each sensor has a curated knowledge base of health signatures that are evaluated continuously against the incoming metrics and are used to raise issues or incidents depending on user impact.
Built-in events trigger issues or incidents based on failing health signatures on entities, and custom events trigger issues or incidents based on the thresholds of an individual metric of any given entity.
For information about built-events for Zookeeper sensor, see the Built-in events reference.