go.etcd.io/etcd@v3.3.27+incompatible/etcdserver/stats/stats.go (about) 1 // Copyright 2015 The etcd Authors 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 stats defines a standard interface for etcd cluster statistics. 16 package stats 17 18 import "github.com/coreos/pkg/capnslog" 19 20 var ( 21 plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "etcdserver/stats") 22 ) 23 24 type Stats interface { 25 // SelfStats returns the struct representing statistics of this server 26 SelfStats() []byte 27 // LeaderStats returns the statistics of all followers in the cluster 28 // if this server is leader. Otherwise, nil is returned. 29 LeaderStats() []byte 30 // StoreStats returns statistics of the store backing this EtcdServer 31 StoreStats() []byte 32 }