mds: don't export dirfrag to stopping mds

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>

diff --git a/src/mds/Migrator.cc b/src/mds/Migrator.cc
index c3f807156014b06f3d8fed2fbfd440675cea9073..207e747f43a3d50706752f94948c93979f87f420 100644 (file)
--- a/src/mds/Migrator.cc
+++ b/src/mds/Migrator.cc
@@ -781,6 +781,10 @@ void Migrator::export_dir(CDir *dir, mds_rank_t dest)
     dout(7) << "read-only FS, no exports for now" << dendl;
     return;
   }
+  if (!mds->mdsmap->is_active(dest)) {
+    dout(7) << "dest not active, no exports for now" << dendl;
+    return;
+  }
   if (mds->is_cluster_degraded()) {
     dout(7) << "cluster degraded, no exports for now" << dendl;
     return;