forked from open-falcon/falcon-plus
/
agent.go
78 lines (62 loc) · 1.81 KB
/
agent.go
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package rpc
import (
"bytes"
"github.com/open-falcon/falcon-plus/common/model"
"github.com/open-falcon/falcon-plus/common/utils"
"github.com/open-falcon/falcon-plus/modules/hbs/cache"
"github.com/open-falcon/falcon-plus/modules/hbs/g"
"sort"
"strings"
"time"
)
func (t *Agent) MinePlugins(args model.AgentHeartbeatRequest, reply *model.AgentPluginsResponse) error {
if args.Hostname == "" {
return nil
}
reply.Plugins = cache.GetPlugins(args.Hostname)
reply.Timestamp = time.Now().Unix()
return nil
}
func (t *Agent) ReportStatus(args *model.AgentReportRequest, reply *model.SimpleRpcResponse) error {
if args.Hostname == "" {
reply.Code = 1
return nil
}
cache.Agents.Put(args)
return nil
}
// 需要checksum一下来减少网络开销?其实白名单通常只会有一个或者没有,无需checksum
func (t *Agent) TrustableIps(args *model.NullRpcRequest, ips *string) error {
*ips = strings.Join(g.Config().Trustable, ",")
return nil
}
// agent按照server端的配置,按需采集的metric,比如net.port.listen port=22 或者 proc.num name=zabbix_agentd
func (t *Agent) BuiltinMetrics(args *model.AgentHeartbeatRequest, reply *model.BuiltinMetricResponse) error {
if args.Hostname == "" {
return nil
}
metrics, err := cache.GetBuiltinMetrics(args.Hostname)
if err != nil {
return nil
}
checksum := ""
if len(metrics) > 0 {
checksum = DigestBuiltinMetrics(metrics)
}
if args.Checksum == checksum {
reply.Metrics = []*model.BuiltinMetric{}
} else {
reply.Metrics = metrics
}
reply.Checksum = checksum
reply.Timestamp = time.Now().Unix()
return nil
}
func DigestBuiltinMetrics(items []*model.BuiltinMetric) string {
sort.Sort(model.BuiltinMetricSlice(items))
var buf bytes.Buffer
for _, m := range items {
buf.WriteString(m.String())
}
return utils.Md5(buf.String())
}