Tempo Worker roles

Tempo-worker charm is configured to work in one of the pre-defined roles. Each tempo-worker application needs to have exactly one role enabled. If a worker application has more than 1 role enabled, it will stop serving requests.

To understand what roles are, see Understanding roles (Managing deployment of COS-Lite HA addons). See Tempo architecture for an explanation of each of the roles.

In order for the Tempo cluster to be functional in a microservice setup, multiple worker applications should be deployed and configured with the required roles. If a required role is missing, the cluster will be seen as inconsistent and will cease to work.

Role Configuration property Enabled by default Required for microservices setup Recommended scale Notes
all role-all Yes No - Mapped to scalable-single-binary in tempo configuration. Used for monolithic / scaled monolithic setup.
querier role-querier No Yes 1
query-frontend role-query-frontend No Yes 1
ingester role-ingester No Yes 3
distributor role-distributor No Yes 1
compactor role-compactor No Yes 1
metrics-generator role-metrics-generator No No 1 Optional role. See this doc for more.

Last updated a month ago.