/
maintenance.go
43 lines (38 loc) · 1006 Bytes
/
maintenance.go
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package main
import (
"time"
)
func maintenanceInit() *time.Ticker {
t := time.NewTicker(time.Duration(60) * time.Second)
LogComponent("maintenance", "will run every 60 seconds")
go performMaintenance(t)
return t
}
func maintenanceShutdown(t *time.Ticker) {
LogComponent("maintenance", "shutdown requested")
t.Stop()
}
func performMaintenance(t *time.Ticker) {
for range t.C {
stale := cleanUpStaleServers()
LogComponent("maintenance", "Cleaned up %d stale servers\n", stale)
}
}
func cleanUpStaleServers() int {
count := 0
for k, v := range thisMaster.Service.Servers {
if v.IsExpired() {
thisMaster.Lock()
LogComponent("maintenance", "Removing server %s, last seen: %s", v.String(), v.LastSeen.Format(time.Stamp))
delete(thisMaster.Service.Servers, k)
delete(thisMaster.SolicitedServers, k)
thisMaster.IPServiceCount[k]--
if thisMaster.IPServiceCount[k] <= 0 {
delete(thisMaster.IPServiceCount, k)
}
thisMaster.Unlock()
count++
}
}
return count
}