Redis Sentinel

Overview

Get metrics from Redis's Sentinel service in real time to:

• Visualize and monitor sentinels states
• Be notified about failovers

Setup

The Redis's Sentinel check is NOT included in the Datadog Agent package.

Installation

To install the Redis's Sentinel check on your host:

1. Download the Datadog Agent.
2. Download the check.py file for Redis's Sentinel.
3. Place it in the Agent's checks.d directory.
4. Rename it to redis_sentinel.py.

Configuration

To configure the Redis's Sentinel check:

1. Create a redis_sentinel.d/ folder in the conf.d/ folder at the root of your Agent's directory.
2. Create a conf.yaml file in the redis_sentinel.d/ folder previously created.
3. Consult the sample redis_sentinel.yaml file and copy its content in the conf.yaml file.
4. Edit the conf.yaml file to point to your server and port, set the masters to monitor.
5. Restart the Agent.

Validation

Run the Agent's status subcommand and look for redis_sentinel under the Checks section.

Data Collected

Metrics

See metadata.csv for a list of metrics provided by this check.

Events

The Redis's Sentinel check does not include any events at this time.

Service Checks

redis.sentinel.master_is_down

The check returns:

• OK if the master is up.
• CRITICAL if the master is down.

redis.sentinel.master_is_disconnected

The check returns:

• OK if the master is not disconnected.
• CRITICAL if the master is disconnected.

redis.sentinel.slave_master_link_down

The check returns:

• OK if the master link status is ok.
• CRITICAL if the master link status is not ok.

redis.sentinel.slave_is_disconnected

The check returns:

• OK if the slave is not disconnected.
• CRITICAL if the slave is disconnected.

Troubleshooting

Need help? Contact Datadog Support.