panic: runtime error: slice bounds out of range

[rj-reilly]

Hi, trying to test out kapacitor, following the tut @ https://docs.influxdata.com/kapacitor/v0.2/introduction/getting_started/
I get the following error, dont really know anything about go or i would try to debug further.
cheers!
rob

# kapacitor define -name load_longterm -type stream -tick cpu_alert.tick  -dbrp collectd
panic: runtime error: slice bounds out of range

goroutine 1 [running]:
main.(*dbrps).Set(0xc858a0, 0x7fff9fab98bc, 0x8, 0x0, 0x0)
        /gopath/src/github.com/influxdata/kapacitor/cmd/kapacitor/main.go:358 +0x323
flag.(*FlagSet).parseOne(0xc82001a660, 0x9d5a01, 0x0, 0x0)
        /usr/local/go/src/flag/flag.go:881 +0xdd9
flag.(*FlagSet).Parse(0xc82001a660, 0xc82000a0c0, 0x8, 0x8, 0x0, 0x0)
        /usr/local/go/src/flag/flag.go:900 +0x6e
main.main()
        /gopath/src/github.com/influxdata/kapacitor/cmd/kapacitor/main.go:107 +0xa67

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1721 +0x1

goroutine 18 [syscall]:
os/signal.loop()
        /usr/local/go/src/os/signal/signal_unix.go:22 +0x18
created by os/signal.init.1
        /usr/local/go/src/os/signal/signal_unix.go:28 +0x37

[nathanielc]

@devilldog The error is that the dbrp flag is invalid. It needs to be of the form dbname.rpname. The value collectd is invalid and should probably be something like collectd.default. I'll fix the panic so that it returns a valid error explaining the correct format.
Thanks for the report.