mon: create cluster_fsid on startup if not present

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

diff --git a/src/mon/Monitor.cc b/src/mon/Monitor.cc
index f6b3878dcf7009b6512a207b073138e6ee2bc110..fc881a0a9a23bb33ffe4f83d96a2569e50eec64b 100644 (file)
--- a/src/mon/Monitor.cc
+++ b/src/mon/Monitor.cc
@@ -275,6 +275,15 @@ int Monitor::init()
     cluster_logger = pcb.create_perf_counters();
   }
 
+  // verify cluster_fsid
+  {
+    int r = check_fsid();
+    if (r == -ENOENT)
+      r = write_fsid();
+    if (r < 0)
+      return r;
+  }
+
   // open compatset
   {
     bufferlist bl;