增加redis监控信息的读取
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middleware/redis/monitor.go
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326
middleware/redis/monitor.go
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// Package redis ...
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//
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// Description : redis 系统信息监控
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 2021-11-27 12:22 下午
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package redis
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import (
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"context"
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"strings"
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"git.zhangdeman.cn/zhangdeman/gopkg/convert"
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yml "gopkg.in/yaml.v2"
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"github.com/go-redis/redis/v8"
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)
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// GetRedisServerInfo 获取 redis server info
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 12:24 下午 2021/11/27
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func GetRedisServerInfo(client *redis.Client) (*ServerInfo, error) {
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var result ServerInfo
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if err := infoToStruct(client, "server", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetMemoryInfo 获取内存信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 12:59 下午 2021/11/27
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func GetMemoryInfo(client *redis.Client) (*MemoryInfo, error) {
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var result MemoryInfo
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if err := infoToStruct(client, "memory", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetClientInfo 获取客户端信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:10 下午 2021/11/27
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func GetClientInfo(client *redis.Client) (*ClientInfo, error) {
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var result ClientInfo
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if err := infoToStruct(client, "clients", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetPersistence 获取持久化相关信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:11 下午 2021/11/27
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func GetPersistence(client *redis.Client) (*Persistence, error) {
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var result Persistence
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if err := infoToStruct(client, "persistence", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetStats 获取状态
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:19 下午 2021/11/27
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func GetStats(client *redis.Client) (*Stats, error) {
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var result Stats
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if err := infoToStruct(client, "stats", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetReplication 复制相关信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:23 下午 2021/11/27
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func GetReplication(client *redis.Client) (*Replication, error) {
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var result Replication
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if err := infoToStruct(client, "replication", &result); nil != err {
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return nil, err
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}
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result.SlaveList = GetSlaveList(client)
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return &result, nil
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}
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// GetSlaveList 获取从库信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 4:26 下午 2021/11/27
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func GetSlaveList(client *redis.Client) []SlaveNode {
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// 解析从库信息
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slaveList := make([]SlaveNode, 0)
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var data map[string]string
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_ = infoToStruct(client, "replication", &data)
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slaveKey := []string{"slave0", "slave1", "slave2", "slave3", "slave4", "slave5", "slave6", "slave7", "slave8", "slave9"}
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for k, v := range data {
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isSlave := false
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for _, item := range slaveKey {
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if strings.Contains(k, item) {
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isSlave = true
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break
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}
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}
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if !isSlave {
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continue
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}
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vArr := strings.Split(v, ",")
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if len(vArr) < 3 {
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continue
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}
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slave := SlaveNode{
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ID: k,
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IP: "",
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Port: 0,
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State: "",
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Offset: 0,
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Lag: 0,
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}
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for _, prop := range vArr {
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propArr := strings.Split(prop, "=")
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if len(propArr) != 2 {
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continue
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}
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switch strings.ToLower(propArr[0]) {
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case "ip":
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slave.IP = propArr[1]
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case "port":
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_ = convert.ConvertAssign(&slave.Port, propArr[1])
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case "state":
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slave.State = propArr[1]
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case "offset":
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_ = convert.ConvertAssign(&slave.Offset, propArr[1])
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case "lag":
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_ = convert.ConvertAssign(&slave.Lag, propArr[1])
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}
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}
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slaveList = append(slaveList, slave)
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}
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return slaveList
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}
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// GetCPUInfo 获取cpu信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:24 下午 2021/11/27
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func GetCPUInfo(client *redis.Client) (*CPU, error) {
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var result CPU
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if err := infoToStruct(client, "cpu", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetCommandStats 命令状态
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:27 下午 2021/11/27
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func GetCommandStats(client *redis.Client) (*Stats, error) {
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var result Stats
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if err := infoToStruct(client, "stats", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetCommandInfo 获取命令信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 1:32 下午 2021/11/27
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func GetCommandInfo(client *redis.Client) ([]CmdStat, error) {
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var result map[string]string
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if err := infoToStruct(client, "commandstats", &result); nil != err {
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return make([]CmdStat, 0), err
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}
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cmdList := make([]CmdStat, 0)
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// 解析数据
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for cmd, detail := range result {
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infoArr := strings.Split(detail, ",")
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if len(infoArr) < 2 {
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// 去掉开始的描述信息
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continue
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}
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info := CmdStat{
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Cmd: strings.ReplaceAll(strings.ToLower(cmd), "cmdstat_", ""),
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Calls: 0,
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TotalUsedTime: 0,
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AvgUsedTime: 0,
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RejectedCalls: 0,
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FailedCalls: 0,
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SuccessCalls: 0,
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}
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for _, item := range infoArr {
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itemArr := strings.Split(item, "=")
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if len(itemArr) != 2 {
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continue
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}
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switch strings.ToLower(itemArr[0]) {
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case "calls":
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_ = convert.ConvertAssign(&info.Calls, itemArr[1])
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case "usec":
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_ = convert.ConvertAssign(&info.TotalUsedTime, itemArr[1])
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case "usec_per_call":
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_ = convert.ConvertAssign(&info.AvgUsedTime, itemArr[1])
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case "rejected_calls":
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_ = convert.ConvertAssign(&info.RejectedCalls, itemArr[1])
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case "failed_calls":
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_ = convert.ConvertAssign(&info.FailedCalls, itemArr[1])
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}
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}
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info.SuccessCalls = info.Calls - info.FailedCalls - info.RejectedCalls
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cmdList = append(cmdList, info)
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}
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return cmdList, nil
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}
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// GetKeyspace 获取 keyspace 信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 2:44 下午 2021/11/27
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func GetKeyspace(client *redis.Client) ([]DB, error) {
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var result map[string]string
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if err := infoToStruct(client, "keyspace", &result); nil != err {
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return make([]DB, 0), err
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}
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dbList := make([]DB, 0)
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for dbName, item := range result {
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itemArr := strings.Split(item, ",")
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if len(itemArr) < 3 {
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continue
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}
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dbInfo := DB{
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Name: dbName,
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Keys: 0,
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Expires: 0,
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AvgTTL: 0,
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}
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for _, kv := range itemArr {
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kvArr := strings.Split(kv, "=")
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if len(kvArr) != 2 {
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continue
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}
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switch strings.ToLower(kvArr[0]) {
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case "keys":
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_ = convert.ConvertAssign(&dbInfo.Keys, kvArr[1])
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case "expires":
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_ = convert.ConvertAssign(&dbInfo.Expires, kvArr[1])
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case "avg_ttl":
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_ = convert.ConvertAssign(&dbInfo.AvgTTL, kvArr[1])
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}
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}
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dbList = append(dbList, dbInfo)
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}
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return dbList, nil
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}
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// GetCluster 获取 cluster 信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:30 下午 2021/11/27
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func GetCluster(client *redis.Client) (*Cluster, error) {
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var result Cluster
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if err := infoToStruct(client, "cluster", &result); nil != err {
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return nil, err
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}
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return &result, nil
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}
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// GetErrorStats 获取错误状态信息
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:35 下午 2021/11/27
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func GetErrorStats(client *redis.Client) ([]Error, error) {
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var result map[string]string
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if err := infoToStruct(client, "errorstats", &result); nil != err {
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return make([]Error, 0), err
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}
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errList := make([]Error, 0)
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for errType, item := range result {
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itemArr := strings.Split(item, "=")
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if len(itemArr) != 2 {
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continue
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}
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errInfo := Error{
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Type: strings.ReplaceAll(errType, "errorstat_", ""),
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Count: 0,
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}
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_ = convert.ConvertAssign(&errInfo.Count, itemArr[1])
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errList = append(errList, errInfo)
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}
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return errList, nil
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}
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// infoToStruct 读取到的数据,解析到结构体
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 12:28 下午 2021/11/27
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func infoToStruct(client *redis.Client, module string, receiver interface{}) error {
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data := client.Info(context.Background(), module).String()
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// yaml 文件规范要求, key: val , 注意 : 的后面有空格
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data = strings.ReplaceAll(data, ":", ": ")
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return yml.Unmarshal([]byte(data), receiver)
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}
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@ -42,6 +42,12 @@ func TestCommandProxy(t *testing.T) {
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panic(err.Error())
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}
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r, cmdErr := instance.CommandProxy(nil, "test_redis", "set", "command_proxy", "hello world")
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c, _ := instance.GetRedisClient("test_redis")
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fmt.Println(GetRedisServerInfo(c.Instance))
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fmt.Println(GetCommandInfo(c.Instance))
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fmt.Println(GetKeyspace(c.Instance))
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fmt.Println(GetCluster(c.Instance))
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fmt.Println(GetErrorStats(c.Instance))
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assert.Nil(t, cmdErr, "命令执行成功")
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assert.Equal(t, "OK", fmt.Sprintf("%v", r))
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}
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