From 2ebfbb03f0fa58121ada861cc8c6695a88c3e846 Mon Sep 17 00:00:00 2001
From: Joe Gordon <jogo@cloudscaling.com>
Date: Tue, 17 Jul 2012 12:30:21 -0700
Subject: Add debug output to RamFilter

Change-Id: I83650f052dd8f0961a72a70aaf57c486bfdee8e0
---
 nova/scheduler/filters/ram_filter.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/nova/scheduler/filters/ram_filter.py b/nova/scheduler/filters/ram_filter.py
index 7f79c1923..c2bcfbf7f 100644
--- a/nova/scheduler/filters/ram_filter.py
+++ b/nova/scheduler/filters/ram_filter.py
@@ -39,5 +39,11 @@ class RamFilter(filters.BaseHostFilter):
         free_ram_mb = host_state.free_ram_mb
         total_usable_ram_mb = host_state.total_usable_ram_mb
         used_ram_mb = total_usable_ram_mb - free_ram_mb
-        return (total_usable_ram_mb * FLAGS.ram_allocation_ratio -
-                used_ram_mb >= requested_ram)
+        usable_ram = (total_usable_ram_mb * FLAGS.ram_allocation_ratio -
+                used_ram_mb)
+        if not usable_ram >= requested_ram:
+            LOG.debug(_("%(host_state)s does not have %(requested_ram)s MB "
+                    "usable ram, it only has %(usable_ram)s MB usable ram."),
+                    locals())
+            return False
+        return True
-- 
cgit