redirect process error to log file

go/test/endtoend/cluster/cluster_process.go

@@ -357,44 +357,40 @@ func (cluster *LocalProcessCluster) WaitForTabletsToHealthyInVtgate() (err error
 }
 
 // Teardown brings down the cluster by invoking teardown for individual processes
-func (cluster *LocalProcessCluster) Teardown() (err error) {
-	if err = cluster.VtgateProcess.TearDown(); err != nil {
-		log.Error(err.Error())
-		return
+func (cluster *LocalProcessCluster) Teardown() {
+	if err := cluster.VtgateProcess.TearDown(); err != nil {
+		log.Errorf("Error in vtgate teardown - %s", err.Error())
 	}
 	mysqlctlProcessList := []*exec.Cmd{}
 	for _, keyspace := range cluster.Keyspaces {
 		for _, shard := range keyspace.Shards {
 			for _, tablet := range shard.Vttablets {
 				if proc, err := tablet.MysqlctlProcess.StopProcess(); err != nil {
-					log.Error(err.Error())
-					return err
+					log.Errorf("Error in mysqlctl teardown - %s", err.Error())
 				} else {
 					mysqlctlProcessList = append(mysqlctlProcessList, proc)
 				}
 
-				if err = tablet.VttabletProcess.TearDown(); err != nil {
-					log.Error(err.Error())
-					return
+				if err := tablet.VttabletProcess.TearDown(); err != nil {
+					log.Errorf("Error in vttablet teardown - %s", err.Error())
 				}
 			}
 		}
 	}
 
 	for _, proc := range mysqlctlProcessList {
-		proc.Wait()
+		if err := proc.Wait(); err != nil {
+			log.Errorf("Error in mysqlctl teardown wait - %s", err.Error())
+		}
 	}
 
-	if err = cluster.VtctldProcess.TearDown(); err != nil {
-		log.Error(err.Error())
-		return
+	if err := cluster.VtctldProcess.TearDown(); err != nil {
+		log.Errorf("Error in vtctld teardown - %s", err.Error())
 	}
 
-	if err = cluster.TopoProcess.TearDown(cluster.Cell, cluster.OriginalVTDATAROOT, cluster.CurrentVTDATAROOT, *keepData); err != nil {
-		log.Error(err.Error())
-		return
+	if err := cluster.TopoProcess.TearDown(cluster.Cell, cluster.OriginalVTDATAROOT, cluster.CurrentVTDATAROOT, *keepData); err != nil {
+		log.Errorf("Error in etcd teardown - %s", err.Error())
 	}
-	return err
 }
 
 // GetAndReservePort gives port for required process

go/test/endtoend/cluster/etcd_process.go

@@ -61,8 +61,8 @@ func (etcd *EtcdProcess) Setup() (err error) {
 		"--initial-cluster", fmt.Sprintf("%s=%s", etcd.Name, etcd.PeerURL),
 	)
 
-	etcd.proc.Stderr = os.Stderr
-	etcd.proc.Stdout = os.Stdout
+	errFile, _ := os.Create(path.Join(etcd.DataDirectory, "etcd-stderr.txt"))
+	etcd.proc.Stderr = errFile
 
 	etcd.proc.Env = append(etcd.proc.Env, os.Environ()...)
 
@@ -110,9 +110,9 @@ func (etcd *EtcdProcess) TearDown(Cell string, originalVtRoot string, currentRoo
 	}
 	_ = os.Setenv("VTDATAROOT", originalVtRoot)
 	select {
-	case err := <-etcd.exit:
+	case <-etcd.exit:
 		etcd.proc = nil
-		return err
+		return nil
 
 	case <-time.After(10 * time.Second):
 		etcd.proc.Process.Kill()

go/test/endtoend/cluster/vtctld_process.go

@@ -76,8 +76,8 @@ func (vtctld *VtctldProcess) Setup(cell string, extraArgs ...string) (err error)
 	)
 	vtctld.proc.Args = append(vtctld.proc.Args, extraArgs...)
 
-	vtctld.proc.Stderr = os.Stderr
-	vtctld.proc.Stdout = os.Stdout
+	errFile, _ := os.Create(path.Join(vtctld.LogDir, "vtctld-stderr.txt"))
+	vtctld.proc.Stderr = errFile
 
 	vtctld.proc.Env = append(vtctld.proc.Env, os.Environ()...)
 

go/test/endtoend/cluster/vtgate_process.go

@@ -84,8 +84,8 @@ func (vtgate *VtgateProcess) Setup() (err error) {
 	)
 	vtgate.proc.Args = append(vtgate.proc.Args, vtgate.ExtraArgs...)
 
-	vtgate.proc.Stderr = os.Stderr
-	vtgate.proc.Stdout = os.Stdout
+	errFile, _ := os.Create(path.Join(vtgate.LogDir, "vtgate-stderr.txt"))
+	vtgate.proc.Stderr = errFile
 
 	vtgate.proc.Env = append(vtgate.proc.Env, os.Environ()...)
 

go/test/endtoend/cluster/vttablet_process.go

@@ -107,8 +107,8 @@ func (vttablet *VttabletProcess) Setup() (err error) {
 
 	vttablet.proc.Args = append(vttablet.proc.Args, vttablet.ExtraArgs...)
 
-	vttablet.proc.Stderr = os.Stderr
-	vttablet.proc.Stdout = os.Stdout
+	errFile, _ := os.Create(path.Join(vttablet.LogDir, vttablet.TabletPath+"-vttablet-stderr.txt"))
+	vttablet.proc.Stderr = errFile
 
 	vttablet.proc.Env = append(vttablet.proc.Env, os.Environ()...)