Prerequisites
Procedure

For Jaeger tracing to work, enable the following environment variables in your Che deployment:

# Activating Che tracing modules
CHE_TRACING_ENABLED=true

# Following variables are the basic Jaeger client library configuration.
JAEGER_ENDPOINT="http://jaeger-collector:14268/api/traces"

# Service name
JAEGER_SERVICE_NAME="che-server"

# URL to remote sampler
JAEGER_SAMPLER_MANAGER_HOST_PORT="jaeger:5778"

# Type and param of sampler (constant sampler for all traces)
JAEGER_SAMPLER_TYPE="const"
JAEGER_SAMPLER_PARAM="1"

# Maximum queue size of reporter
JAEGER_REPORTER_MAX_QUEUE_SIZE="10000"

To enable the following environment variables:

  1. In the yaml source code of the Che deployment, add the following configuration variables under spec.server.customCheProperties.

    customCheProperties:
      CHE_TRACING_ENABLED: 'true'
      JAEGER_SAMPLER_TYPE: const
      DEFAULT_JAEGER_REPORTER_MAX_QUEUE_SIZE: '10000'
      JAEGER_SERVICE_NAME: che-server
      JAEGER_ENDPOINT: 'http://jaeger-collector:14268/api/traces'
      JAEGER_SAMPLER_MANAGER_HOST_PORT: 'jaeger:5778'
      JAEGER_SAMPLER_PARAM: '1'

  2. Edit the JAEGER_ENDPOINT value to match the name of the Jaeger collector service in your deployment.

    From the left menu of the main OpenShift Container Platform screen, obtain the value of JAEGER_ENDPOINT by navigation to Networking → Services. Alternatively, execute the following oc command:

    $ oc get services

    The requested value is included in the service name that contains the collector string.

Additional resources