http: provide backpressure for pipeline flood

If a client sends a lot more pipelined requests than we can handle, then
we need to provide backpressure so that the client knows to back off.
Do this by pausing both the stream and the parser itself when the
responses are not being read by the downstream client.

Fix GH-6214

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/_http_incoming.js b/lib/_http_incoming.js
index cc93bfc9f1..2f66400247 100644
--- a/lib/_http_incoming.js
+++ b/lib/_http_incoming.js
@@ -23,7 +23,7 @@ var util = require('util');
 var Stream = require('stream');
 
 function readStart(socket) {
-  if (socket)
+  if (socket && !socket._paused && socket.readable)
     socket.resume();
 }
 exports.readStart = readStart;