use AddError everywhere (#2372)

plugins/inputs/leofs/leofs.go

@@ -154,15 +154,16 @@ func (l *LeoFS) Gather(acc telegraf.Accumulator) error {
 		return nil
 	}
 	var wg sync.WaitGroup
-	var outerr error
 	for _, endpoint := range l.Servers {
 		_, err := url.Parse(endpoint)
 		if err != nil {
-			return fmt.Errorf("Unable to parse the address:%s, err:%s", endpoint, err)
+			acc.AddError(fmt.Errorf("Unable to parse the address:%s, err:%s", endpoint, err))
+			continue
 		}
 		port, err := retrieveTokenAfterColon(endpoint)
 		if err != nil {
-			return err
+			acc.AddError(err)
+			continue
 		}
 		st, ok := serverTypeMapping[port]
 		if !ok {
@@ -171,11 +172,11 @@ func (l *LeoFS) Gather(acc telegraf.Accumulator) error {
 		wg.Add(1)
 		go func(endpoint string, st ServerType) {
 			defer wg.Done()
-			outerr = l.gatherServer(endpoint, st, acc)
+			acc.AddError(l.gatherServer(endpoint, st, acc))
 		}(endpoint, st)
 	}
 	wg.Wait()
-	return outerr
+	return nil
 }
 
 func (l *LeoFS) gatherServer(

plugins/inputs/leofs/leofs_test.go

@@ -146,7 +146,7 @@ func testMain(t *testing.T, code string, endpoint string, serverType ServerType)
 	var acc testutil.Accumulator
 	acc.SetDebug(true)
 
-	err := l.Gather(&acc)
+	err := acc.GatherError(l.Gather)
 	require.NoError(t, err)
 
 	floatMetrics := KeyMapping[serverType]