| // Licensed to Apache Software Foundation (ASF) under one or more contributor |
| // license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright |
| // ownership. Apache Software Foundation (ASF) licenses this file to you under |
| // the Apache License, Version 2.0 (the "License"); you may |
| // not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| package helpers |
| |
| import ( |
| "context" |
| "errors" |
| "time" |
| |
| "google.golang.org/grpc/health/grpc_health_v1" |
| |
| "github.com/apache/skywalking-banyandb/pkg/grpchelper" |
| "github.com/apache/skywalking-banyandb/pkg/logger" |
| ) |
| |
| var ( |
| ErrServiceUnhealthy = errors.New("service is unhealthy") |
| l = logger.GetLogger() |
| ) |
| |
| func HealthCheck(addr string, connTimeout time.Duration, rpcTimeout time.Duration) func() error { |
| return func() error { |
| conn, err := grpchelper.Conn(addr, connTimeout) |
| if err != nil { |
| return err |
| } |
| defer conn.Close() |
| var resp *grpc_health_v1.HealthCheckResponse |
| if err := grpchelper.Request(context.Background(), rpcTimeout, func(rpcCtx context.Context) (err error) { |
| resp, err = grpc_health_v1.NewHealthClient(conn).Check(rpcCtx, |
| &grpc_health_v1.HealthCheckRequest{ |
| Service: "", |
| }) |
| return err |
| }); err != nil { |
| return err |
| } |
| if resp.GetStatus() != grpc_health_v1.HealthCheckResponse_SERVING { |
| l.Warn().Str("responded_status", resp.GetStatus().String()).Msg("service unhealthy") |
| return ErrServiceUnhealthy |
| } |
| l.Info().Stringer("status", resp.GetStatus()).Msg("connected") |
| return nil |
| } |
| } |