From 2b2ad6d605612f6553f15f7bf85f84678ddc2581 Mon Sep 17 00:00:00 2001
From: "lzhou/zhl@dev3-63.(none)" <>
Date: Fri, 30 Mar 2007 15:01:03 +0000
Subject: [PATCH] BUG#24793 Add SO_KEEPALIVE socket option to avoid cluster
 nodes keeping dead connections forever.

---
 ndb/src/common/transporter/TCP_Transporter.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ndb/src/common/transporter/TCP_Transporter.cpp b/ndb/src/common/transporter/TCP_Transporter.cpp
index 91a5fb50c57..897bad8b787 100644
--- a/ndb/src/common/transporter/TCP_Transporter.cpp
+++ b/ndb/src/common/transporter/TCP_Transporter.cpp
@@ -155,6 +155,8 @@ TCP_Transporter::initTransporter() {
 
 void
 TCP_Transporter::setSocketOptions(){
+  int sockOptKeepAlive  = 1;
+
   if (setsockopt(theSocket, SOL_SOCKET, SO_RCVBUF,
                  (char*)&sockOptRcvBufSize, sizeof(sockOptRcvBufSize)) < 0) {
 #ifdef DEBUG_TRANSPORTER
@@ -169,6 +171,11 @@ TCP_Transporter::setSocketOptions(){
 #endif
   }//if
   
+  if (setsockopt(theSocket, SOL_SOCKET, SO_KEEPALIVE,
+                 (char*)&sockOptKeepAlive, sizeof(sockOptKeepAlive)) < 0) {
+    ndbout_c("The setsockopt SO_KEEPALIVE error code = %d", InetErrno);
+  }//if
+
   //-----------------------------------------------
   // Set the TCP_NODELAY option so also small packets are sent
   // as soon as possible