mirror of https://github.com/etcd-io/dbtester.git
71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright 2017 CoreOS, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package agent
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/gyuho/psn"
|
|
)
|
|
|
|
// startMetrics starts collecting metrics.
|
|
func startMetrics(fs *flags, t *transporterServer) error {
|
|
if fs == nil || t == nil || t.cmd == nil {
|
|
return fmt.Errorf("cannot find process to track (%+v, %+v)", fs, t)
|
|
}
|
|
plog.Infof("starting collecting metrics [database %q | PID: %d | disk device: %q | network interface: %q]",
|
|
t.req.Database, t.pid, fs.diskDevice, fs.networkInterface)
|
|
|
|
if err := os.RemoveAll(fs.systemMetricsCSV); err != nil {
|
|
return err
|
|
}
|
|
if err := toFile(fmt.Sprintf("%d", t.req.ClientNum), t.clientNumPath); err != nil {
|
|
return err
|
|
}
|
|
t.metricsCSV = psn.NewCSV(fs.systemMetricsCSV, t.pid, fs.diskDevice, fs.networkInterface, t.clientNumPath)
|
|
if err := t.metricsCSV.Add(); err != nil {
|
|
return err
|
|
}
|
|
|
|
go func() {
|
|
for {
|
|
select {
|
|
case <-time.After(time.Second):
|
|
if err := t.metricsCSV.Add(); err != nil {
|
|
plog.Errorf("psn.CSV.Add error (%v)", err)
|
|
continue
|
|
}
|
|
|
|
case <-t.uploadSig:
|
|
plog.Infof("upload signal received; saving CSV at %q", t.metricsCSV.FilePath)
|
|
if err := t.metricsCSV.Save(); err != nil {
|
|
plog.Errorf("psn.CSV.Save error %v", err)
|
|
} else {
|
|
plog.Infof("CSV saved at %q", t.metricsCSV.FilePath)
|
|
}
|
|
close(t.csvReady)
|
|
return
|
|
|
|
case sig := <-t.notifier:
|
|
plog.Infof("signal received %q", sig.String())
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
return nil
|
|
}
|