github.com/matrixorigin/matrixone@v1.2.0/pkg/hakeeper/checkers/cnservice/check.go (about)

     1  // Copyright 2022 Matrix Origin
     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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cnservice
    16  
    17  import (
    18  	"github.com/matrixorigin/matrixone/pkg/common/runtime"
    19  	"github.com/matrixorigin/matrixone/pkg/hakeeper"
    20  	"github.com/matrixorigin/matrixone/pkg/hakeeper/operator"
    21  	pb "github.com/matrixorigin/matrixone/pkg/pb/logservice"
    22  	"go.uber.org/zap"
    23  )
    24  
    25  func Check(cfg hakeeper.Config, infos pb.CNState, user pb.TaskTableUser, currentTick uint64) (operators []*operator.Operator) {
    26  	if user.Username == "" {
    27  		runtime.ProcessLevelRuntime().Logger().Warn("username is still empty.")
    28  		return
    29  	}
    30  	working, expired := parseCNStores(cfg, infos, currentTick)
    31  	if len(working)+len(expired) == 0 {
    32  		runtime.ProcessLevelRuntime().Logger().Error("there are no CNs yet.")
    33  		return
    34  	}
    35  	for _, store := range working {
    36  		if !infos.Stores[store].TaskServiceCreated {
    37  			runtime.ProcessLevelRuntime().Logger().Info("create task service for CN.",
    38  				zap.String("uuid", store))
    39  			operators = append(operators, operator.CreateTaskServiceOp("",
    40  				store, pb.CNService, user))
    41  		}
    42  		// If this instance has not joined gossip cluster, we generate join command.
    43  		if !infos.Stores[store].GossipJoined {
    44  			addresses := getGossipAddresses(cfg, infos, currentTick, store)
    45  			if len(addresses) > 0 {
    46  				runtime.ProcessLevelRuntime().Logger().Info("join gossip cluster for CN",
    47  					zap.String("uuid", store),
    48  					zap.Any("addresses", addresses))
    49  				operators = append(operators, operator.JoinGossipClusterOp("",
    50  					store, addresses))
    51  			}
    52  		}
    53  	}
    54  	for _, store := range expired {
    55  		runtime.ProcessLevelRuntime().Logger().Warn("expired CN.",
    56  			zap.String("uuid", store))
    57  		operators = append(operators, operator.CreateDeleteCNOp("", store))
    58  	}
    59  	return operators
    60  }
    61  
    62  // parseCNStores returns all expired stores' ids.
    63  func parseCNStores(cfg hakeeper.Config, infos pb.CNState, currentTick uint64) ([]string, []string) {
    64  	working := make([]string, 0)
    65  	expired := make([]string, 0)
    66  	for uuid, storeInfo := range infos.Stores {
    67  		if cfg.CNStoreExpired(storeInfo.Tick, currentTick) {
    68  			expired = append(expired, uuid)
    69  		} else {
    70  			working = append(working, uuid)
    71  		}
    72  	}
    73  
    74  	return working, expired
    75  }
    76  
    77  // getGossipAddresses returns the gossip addresses of CN stores that are in working state.
    78  func getGossipAddresses(cfg hakeeper.Config, infos pb.CNState, currentTick uint64, self string) []string {
    79  	var addresses []string
    80  	var count int
    81  	for uuid, storeInfo := range infos.Stores {
    82  		if !cfg.CNStoreExpired(storeInfo.Tick, currentTick) && uuid != self {
    83  			if len(storeInfo.GossipAddress) > 0 {
    84  				addresses = append(addresses, storeInfo.GossipAddress)
    85  				count++
    86  				if count > 2 {
    87  					break
    88  				}
    89  			}
    90  		}
    91  	}
    92  	return addresses
    93  }