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netstat.go
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/
netstat.go
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package funcs
import (
"github.com/open-falcon/common/model"
"github.com/toolkits/nux"
"log"
)
var USES = map[string]struct{}{
"PruneCalled": struct{}{},
"LockDroppedIcmps": struct{}{},
"ArpFilter": struct{}{},
"TW": struct{}{},
"DelayedACKLocked": struct{}{},
"ListenOverflows": struct{}{},
"ListenDrops": struct{}{},
"TCPPrequeueDropped": struct{}{},
"TCPTSReorder": struct{}{},
"TCPDSACKUndo": struct{}{},
"TCPLoss": struct{}{},
"TCPLostRetransmit": struct{}{},
"TCPLossFailures": struct{}{},
"TCPFastRetrans": struct{}{},
"TCPTimeouts": struct{}{},
"TCPSchedulerFailed": struct{}{},
"TCPAbortOnMemory": struct{}{},
"TCPAbortOnTimeout": struct{}{},
"TCPAbortFailed": struct{}{},
"TCPMemoryPressures": struct{}{},
"TCPSpuriousRTOs": struct{}{},
"TCPBacklogDrop": struct{}{},
"TCPMinTTLDrop": struct{}{},
}
func NetstatMetrics() (L []*model.MetricValue) {
tcpExts, err := nux.Netstat("TcpExt")
if err != nil {
log.Println(err)
return
}
cnt := len(tcpExts)
if cnt == 0 {
return
}
for key, val := range tcpExts {
if _, ok := USES[key]; !ok {
continue
}
L = append(L, CounterValue("TcpExt."+key, val))
}
return
}