osd: skip blank device ids

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index 80d5bd6b689581df75455b6c1d9781e528893cdf..c6087d2d0e9c6e767ebfa626065db9f632f49908 100644 (file)
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -5422,7 +5422,12 @@ void OSD::_collect_metadata(map<string,string> *pm)
     if (!devids.empty()) {
       devids += ",";
     }
-    devids += dev + "=" + get_device_id(dev);
+    string id = get_device_id(dev);
+    if (id.size()) {
+      devids += dev + "=" + id;
+    } else {
+      dout(10) << __func__ << " no unique device id for " << dev << dendl;
+    }
   }
   (*pm)["device_ids"] = devids;