mds/FSMap.cc: remember stopped mds when resetting filesystem

Remember mds ranks that have ever started. They should load old
inotable instead of creating new one if they start again. (suppose
cephfs repair tool fixed inotable)

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

diff --git a/src/mds/FSMap.cc b/src/mds/FSMap.cc
index eb08d02b7dcb007362210a1d6cb9298b79204f00..89dca0e9a82999d60415532edd0dcf34077c5861 100644 (file)
--- a/src/mds/FSMap.cc
+++ b/src/mds/FSMap.cc
@@ -293,6 +293,12 @@ void FSMap::reset_filesystem(fs_cluster_id_t fscid)
   new_fs->mds_map.standby_count_wanted = fs->mds_map.standby_count_wanted;
   new_fs->mds_map.enabled = true;
 
+  // Remember mds ranks that have ever started. (They should load old inotable
+  // instead of creating new one if they start again.)
+  new_fs->mds_map.stopped.insert(fs->mds_map.in.begin(), fs->mds_map.in.end());
+  new_fs->mds_map.stopped.insert(fs->mds_map.stopped.begin(), fs->mds_map.stopped.end());
+  new_fs->mds_map.stopped.erase(mds_rank_t(0));
+
   // Persist the new FSMap
   filesystems[new_fs->fscid] = new_fs;
 }