Improve error msg on unmarshalling

Davit Yeghshatyan · Davit Yeghshatyan · commit 973195f1fc1e · 2018-07-23T14:11:11.000-04:00
Signed-off-by: Davit Yeghshatyan &lt;davo@uber.com&gt;
diff --git a/cmd/ingester/app/processor/span_processor.go b/cmd/ingester/app/processor/span_processor.go
@@ -54,7 +54,7 @@ func NewSpanProcessor(writer spanstore.Writer, unmarshaller kafka.Unmarshaller)
 func (s spanProcessor) Process(message Message) error {
 	mSpan, err := s.unmarshaller.Unmarshal(message.Value())
 	if err != nil {
-		return errors.Wrap(err, "cannot read message")
+		return errors.Wrap(err, "cannot unmarshall byte array into span")
 	}
 	return s.writer.WriteSpan(mSpan)
 }

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ func NewSpanProcessor(writer spanstore.Writer, unmarshaller kafka.Unmarshaller)`
`54`	`54`	`func (s spanProcessor) Process(message Message) error {`
`55`	`55`	`mSpan, err := s.unmarshaller.Unmarshal(message.Value())`
`56`	`56`	`if err != nil {`
`57`		`- return errors.Wrap(err, "cannot read message")`
	`57`	`+ return errors.Wrap(err, "cannot unmarshall byte array into span")`
`58`	`58`	`}`
`59`	`59`	`return s.writer.WriteSpan(mSpan)`
`60`	`60`	`}`