rpc: Reduce codec close error log level

Menno Smits · Menno Smits · commit 2e36fee060f0 · 2016-10-12T13:57:29.000+13:00
It's quite common for close of the codec to return a "broken pipe"
error. It happens for even API request from the client because the
client typically closing the connection after making a single API
request. There is no need to include these at INFO every time.
diff --git a/rpc/server.go b/rpc/server.go
@@ -289,7 +289,7 @@ func (conn *Conn) Close() error {
 
 	// Closing the codec should cause the input loop to terminate.
 	if err := conn.codec.Close(); err != nil {
-		logger.Infof("error closing codec: %v", err)
+		logger.Debugf("error closing codec: %v", err)
 	}
 	<-conn.dead
 

Original file line number	Diff line number	Diff line change
`@@ -289,7 +289,7 @@ func (conn *Conn) Close() error {`
`289`	`289`
`290`	`290`	`// Closing the codec should cause the input loop to terminate.`
`291`	`291`	`if err := conn.codec.Close(); err != nil {`
`292`		`- logger.Infof("error closing codec: %v", err)`
	`292`	`+ logger.Debugf("error closing codec: %v", err)`
`293`	`293`	`}`
`294`	`294`	`<-conn.dead`
`295`	`295`