github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/master/scheduler/worker_test.go (about)

     1  // Copyright 2020 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package scheduler
    15  
    16  import (
    17  	"context"
    18  	"testing"
    19  	"time"
    20  
    21  	"github.com/pingcap/tiflow/dm/config/security"
    22  	"github.com/pingcap/tiflow/dm/master/workerrpc"
    23  	"github.com/pingcap/tiflow/dm/pb"
    24  	"github.com/pingcap/tiflow/dm/pkg/ha"
    25  	"github.com/pingcap/tiflow/dm/pkg/terror"
    26  	"github.com/stretchr/testify/require"
    27  )
    28  
    29  func TestWorker(t *testing.T) {
    30  	t.Parallel()
    31  
    32  	var (
    33  		name    = "dm-worker-1"
    34  		info    = ha.NewWorkerInfo(name, "127.0.0.1:51803") // must ensure no worker listening one this address.
    35  		source1 = "mysql-replica-1"
    36  		source2 = "mysql-replica-2"
    37  		bound   = ha.NewSourceBound(source1, name)
    38  	)
    39  
    40  	// create a worker with Offline stage and not bound.
    41  	w, err := NewWorker(info, security.Security{})
    42  	require.NoError(t, err)
    43  	defer w.Close()
    44  	require.Equal(t, info, w.BaseInfo())
    45  	require.Equal(t, WorkerOffline, w.Stage())
    46  	require.Equal(t, nullBound, w.Bound())
    47  
    48  	// Offline to Free.
    49  	w.ToFree()
    50  	require.Equal(t, WorkerFree, w.Stage())
    51  	require.Equal(t, nullBound, w.Bound())
    52  
    53  	// Free to Bound.
    54  	require.NoError(t, w.ToBound(bound))
    55  	require.Equal(t, WorkerBound, w.Stage())
    56  	require.Equal(t, bound, w.Bound())
    57  
    58  	// Bound to Free.
    59  	w.ToFree()
    60  	require.Equal(t, WorkerFree, w.Stage())
    61  	require.Equal(t, nullBound, w.Bound())
    62  
    63  	// Free to Offline.
    64  	w.ToOffline()
    65  	require.Equal(t, WorkerOffline, w.Stage())
    66  	require.Equal(t, nullBound, w.Bound())
    67  
    68  	// Offline to Bound, invalid.
    69  	require.True(t, terror.ErrSchedulerWorkerInvalidTrans.Equal(w.ToBound(bound)))
    70  	require.Equal(t, WorkerOffline, w.Stage())
    71  	require.Equal(t, nullBound, w.Bound())
    72  
    73  	// Offline to Free to Bound again.
    74  	w.ToFree()
    75  	require.NoError(t, w.ToBound(bound))
    76  	require.Equal(t, WorkerBound, w.Stage())
    77  	require.Equal(t, bound, w.Bound())
    78  
    79  	// Bound to Offline.
    80  	w.ToOffline()
    81  	require.Equal(t, WorkerOffline, w.Stage())
    82  	require.Equal(t, nullBound, w.Bound())
    83  
    84  	// Offline to Free to Relay
    85  	w.ToFree()
    86  	require.NoError(t, w.StartRelay(source1))
    87  	require.Equal(t, WorkerRelay, w.Stage())
    88  	require.Equal(t, source1, w.RelaySourceID())
    89  
    90  	// Relay to Free
    91  	w.StopRelay()
    92  	require.Equal(t, WorkerFree, w.Stage())
    93  	require.Len(t, w.RelaySourceID(), 0)
    94  
    95  	// Relay to Bound (bound with relay)
    96  	require.NoError(t, w.StartRelay(source1))
    97  	require.NoError(t, w.ToBound(bound))
    98  	require.Equal(t, WorkerBound, w.Stage())
    99  	require.Equal(t, bound, w.Bound())
   100  	require.Equal(t, source1, w.relaySource)
   101  
   102  	// Bound turn off relay
   103  	w.StopRelay()
   104  	require.Equal(t, WorkerBound, w.Stage())
   105  	require.Len(t, w.relaySource, 0)
   106  
   107  	// Bound try to turn on relay, but with wrong source ID
   108  	err = w.StartRelay(source2)
   109  	require.True(t, terror.ErrSchedulerRelayWorkersWrongBound.Equal(err))
   110  	require.Len(t, w.relaySource, 0)
   111  
   112  	// Bound turn on relay
   113  	require.NoError(t, w.StartRelay(source1))
   114  	require.Equal(t, WorkerBound, w.Stage())
   115  	require.Equal(t, source1, w.relaySource)
   116  
   117  	// Bound to Relay
   118  	require.NoError(t, w.Unbound())
   119  	require.Equal(t, WorkerRelay, w.Stage())
   120  	require.Equal(t, nullBound, w.bound)
   121  	require.Equal(t, source1, w.relaySource)
   122  
   123  	// Relay to Offline
   124  	w.ToOffline()
   125  	require.Equal(t, WorkerOffline, w.Stage())
   126  	require.Equal(t, source1, w.RelaySourceID())
   127  
   128  	// Offline turn off relay (when DM worker is offline, stop-relay)
   129  	w.StopRelay()
   130  	require.Equal(t, WorkerOffline, w.stage)
   131  	require.Len(t, w.RelaySourceID(), 0)
   132  
   133  	// SendRequest.
   134  	req := &workerrpc.Request{
   135  		Type: workerrpc.CmdQueryStatus,
   136  		QueryStatus: &pb.QueryStatusRequest{
   137  			Name: "task1",
   138  		},
   139  	}
   140  	resp, err := w.SendRequest(context.Background(), req, time.Second)
   141  	require.Contains(t, err.Error(), "connection refused")
   142  	require.Nil(t, resp)
   143  }