From f236675decd336a966cd3fb3d1ec4158e994b459 Mon Sep 17 00:00:00 2001
From: chenglch <chenglch@cn.ibm.com>
Date: Fri, 26 Feb 2016 00:08:24 -0500
Subject: [PATCH] Fix issue #729: xcat do not print message under heavy load
 scenario

The root cause of this issue is the select time out when polling the
pipe socket. When timeout occurs, child process exit before printing
the message at the parent process side.

close-issue: #729
---
 xCAT-server/sbin/xcatd | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/xCAT-server/sbin/xcatd b/xCAT-server/sbin/xcatd
index 03735a006..91ee34c19 100644
--- a/xCAT-server/sbin/xcatd
+++ b/xCAT-server/sbin/xcatd
@@ -1897,6 +1897,12 @@ sub plugin_command {
             $xcatresponses{xcatresponse}=[];
         }
     }
+    if ($check_fds->count > 0) {
+        my %resp_timeout = ('errorcode'=>[1],
+                            'data'=>["Warning: Process terminated due to IO timeout, the following output may not complete.\n"]);
+        push @{$xcatresponses{xcatresponse}},\%resp_timeout;
+        relay_fds($check_fds,$xcatresponses{xcatresponse});
+    }
     if (scalar(@{$xcatresponses{xcatresponse}})) {
         send_response(\%xcatresponses,$sock);
         $xcatresponses{xcatresponse}=[];