Query

KubeMQ Bridges Query target provides an RPC query sender for processing sources requests.

Prerequisites

The following are required to run the query target connector:

• kubemq cluster

• kubemq-bridges deployment

Configuration

Query target connector configuration properties:

Properties Key	Required	Description	Example
address	yes	kubemq server address (gRPC interface)	kubemq-cluster-a-grpc.kubemq.svc.cluster.local:50000
client_id	no	set client id	"client_id"
auth_token	no	set authentication token	JWT token
default_channel	no	set default channel to send request
timeout_seconds	no	sets query request default timeout (600 seconds)

Example:

bindings:
  - name:  query-binding 
    properties: 
      log_level: error
      retry_attempts: 3
      retry_delay_milliseconds: 1000
      retry_max_jitter_milliseconds: 100
      retry_delay_type: "back-off"
      rate_per_second: 100
    sources:
    .....
    targets:
      kind: target.query # Sources kind
      name: 3-clusters-targets # targets name 
      connections: # Array of connections settings per each target kind
        - address: "kubemq-cluster-a-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-a-query-connection"
          auth_token: ""
          channel: "query"
          group: ""
        - address: "kubemq-cluster-b-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-b-query-connection"
          auth_token: ""
          channel: "query"
          group: ""
        - address: "kubemq-cluster-c-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-c-query-connection"
          auth_token: ""
          channel: "query"
          group: ""