github.com/m3db/m3@v1.5.0/src/m3em/generated/proto/heartbeat/heartbeat.proto

// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

syntax = "proto3";

package heartbeat;

service Heartbeater {
  rpc Heartbeat(HeartbeatRequest) returns (HeartbeatResponse);
}

message HeartbeatRequest {
  string        operator_uuid    = 1;
  HeartbeatCode code             = 2;
  string        error            = 3;
  bool          process_running  = 4;
	// TODO(prateek): need the fields below for resuming state
  // string        session_token    = 5;
  // uint32        config_checksum  = 6;
  // uint32        binary_checksum  = 7;
}

enum HeartbeatCode {
  UNKNOWN             = 0;
  HEALTHY             = 1;
  PROCESS_TERMINATION = 2;
  OVERWRITTEN         = 3;
}

message HeartbeatResponse {
}