SERVER-5826 prevent building an index with a non-existent plugin

1 files changed, 7 insertions, 2 deletions

diff --git a/src/mongo/db/index.cpp b/src/mongo/db/index.cpp
index cee68107b5d..5077faa1894 100644
--- a/src/mongo/db/index.cpp
+++ b/src/mongo/db/index.cpp
@@ -367,8 +367,13 @@ namespace mongo {
         }
 
         string pluginName = IndexPlugin::findPluginName( key );
-        IndexPlugin * plugin = pluginName.size() ? IndexPlugin::get( pluginName ) : 0;
-
+        IndexPlugin * plugin = NULL;
+        if (pluginName.size()) {
+            plugin = IndexPlugin::get(pluginName);
+            uassert(16734, str::stream() << "Unknown index plugin '" << pluginName << "' "
+                                         << "in index "<< key
+                   , plugin);
+        }
 
         { 
             BSONObj o = io;