inspector: Use default uv_listen backlog size

PR-URL: #20254
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Tiancheng "Timothy" Gu <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: Ali Ijaz Sheikh <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>

Author: Eugene Ostroukhov

src/inspector_socket_server.cc

@@ -587,7 +587,8 @@ int ServerSocket::Listen(InspectorSocketServer* inspector_server,
   CHECK_EQ(0, uv_tcp_init(loop, server));
   int err = uv_tcp_bind(server, addr, 0);
   if (err == 0) {
-    err = uv_listen(reinterpret_cast<uv_stream_t*>(server), 1,
+    // 511 is the value used by a 'net' module by default
+    err = uv_listen(reinterpret_cast<uv_stream_t*>(server), 511,
                     ServerSocket::SocketConnectedCallback);
   }
   if (err == 0) {

test/parallel/test-inspector-stress-http.js

@@ -0,0 +1,34 @@
+// Flags: --expose-internals
+'use strict';
+const common = require('../common');
+
+common.skipIfInspectorDisabled();
+
+const assert = require('assert');
+const { NodeInstance } = require('../common/inspector-helper.js');
+
+async function testHttp(child, number) {
+  try {
+    await child.httpGet(null, '/json/list');
+    return true;
+  } catch (e) {
+    console.error(`Attempt ${number} failed`, e);
+    return false;
+  }
+}
+
+async function runTest() {
+  const child = new NodeInstance(undefined, '');
+
+  const promises = [];
+  for (let i = 0; i < 100; i++) {
+    promises.push(testHttp(child, i));
+  }
+  const result = await Promise.all(promises);
+  assert(!result.some((a) => !a), 'Some attempts failed');
+  return child.kill();
+}
+
+common.crashOnUnhandledRejection();
+
+runTest();