github.com/matrixorigin/matrixone@v1.2.0/pkg/hakeeper/task/cn_selector.go (about)

     1  // Copyright 2024 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 task
    16  
    17  import (
    18  	"container/heap"
    19  	"strings"
    20  
    21  	"github.com/matrixorigin/matrixone/pkg/hakeeper"
    22  	pb "github.com/matrixorigin/matrixone/pkg/pb/logservice"
    23  )
    24  
    25  type rule func(pb.CNStoreInfo) bool
    26  
    27  func containsLabel(key, label string) func(info pb.CNStoreInfo) bool {
    28  	return func(info pb.CNStoreInfo) bool {
    29  		return contains(info.Labels[key].Labels, label)
    30  	}
    31  }
    32  
    33  func withMemory(requirement uint64) func(info pb.CNStoreInfo) bool {
    34  	return func(info pb.CNStoreInfo) bool {
    35  		return info.Resource.MemTotal >= requirement
    36  	}
    37  }
    38  
    39  func withCPU(requirement uint64) func(info pb.CNStoreInfo) bool {
    40  	return func(info pb.CNStoreInfo) bool {
    41  		return info.Resource.CPUTotal >= requirement
    42  	}
    43  }
    44  
    45  func notExpired(cfg hakeeper.Config, currentTick uint64) func(info pb.CNStoreInfo) bool {
    46  	return func(info pb.CNStoreInfo) bool {
    47  		return !cfg.CNStoreExpired(info.Tick, currentTick)
    48  	}
    49  }
    50  
    51  func matchAllRules(cn pb.CNStoreInfo, rules ...rule) bool {
    52  	for _, rule := range rules {
    53  		if !rule(cn) {
    54  			return false
    55  		}
    56  	}
    57  	return true
    58  }
    59  
    60  func (p *cnPool) selectCNs(rules ...rule) *cnPool {
    61  	newPool := newCNPool()
    62  	for _, cn := range p.sortedCN {
    63  		if matchAllRules(cn.info, rules...) {
    64  			heap.Push(newPool, cn)
    65  		}
    66  	}
    67  	return newPool
    68  }
    69  
    70  func contains(slice []string, val string) bool {
    71  	for _, v := range slice {
    72  		if strings.EqualFold(val, v) {
    73  			return true
    74  		}
    75  	}
    76  	return false
    77  }