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package main
import (
"flag"
"fmt"
"os"
"strings"
cmn "github.com/tendermint/tendermint/libs/common"
"github.com/tendermint/tendermint/libs/log"
monitor "github.com/tendermint/tendermint/tools/tm-monitor/monitor"
)
var logger = log.NewNopLogger()
func main() {
var listenAddr string
var noton bool
flag.StringVar(&listenAddr, "listen-addr", "tcp://0.0.0.0:26670", "HTTP and Websocket server listen address")
flag.BoolVar(&noton, "no-ton", false, "Do not show ton (table of nodes)")
flag.Usage = func() {
fmt.Println(`Tendermint monitor watches over one or more Tendermint core
applications, collecting and providing various statistics to the user.
Usage:
tm-monitor [-no-ton] [-listen-addr="tcp://0.0.0.0:26670"] [endpoints]
Examples:
# monitor single instance
tm-monitor localhost:26657
# monitor a few instances by providing comma-separated list of RPC endpoints
tm-monitor host1:26657,host2:26657`)
fmt.Println("Flags:")
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() == 0 {
flag.Usage()
os.Exit(1)
}
if noton {
logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout))
}
monitor := startMonitor(flag.Arg(0))
listener := startRPC(listenAddr, monitor, logger)
var ton *Ton
if !noton {
ton = NewTon(monitor)
ton.Start()
}
cmn.TrapSignal(func() {
if !noton {
ton.Stop()
}
monitor.Stop()
listener.Close()
})
}
func startMonitor(endpoints string) *monitor.Monitor {
m := monitor.NewMonitor()
m.SetLogger(logger.With("component", "monitor"))
for _, e := range strings.Split(endpoints, ",") {
n := monitor.NewNode(e)
n.SetLogger(logger.With("node", e))
if err := m.Monitor(n); err != nil {
panic(err)
}
}
if err := m.Start(); err != nil {
panic(err)
}
return m
}