mds: prevent scrub start for standby-replay MDS

Fixes: https://tracker.ceph.com/issues/62537
Signed-off-by: Neeraj Pratap Singh <neesingh@redhat.com>
(cherry picked from commit 525a3beeb71a62c468ee13a01f4c456e4d471871)

diff --git a/src/mds/MDSRank.cc b/src/mds/MDSRank.cc
index 2aff4800b8463824a93607e1dd0cdfdddc503e4c..9b9714ad2e23907118e2c39a8065d17a9153d374 100644 (file)
--- a/src/mds/MDSRank.cc
+++ b/src/mds/MDSRank.cc
@@ -2735,7 +2735,12 @@ void MDSRankDispatcher::handle_asok_command(
     r = config_client(client_id, !got_value, option, value, *css);
   } else if (command == "scrub start" ||
             command == "scrub_start") {
-    if (whoami != 0) {
+    if (!is_active()) {
+      *css << "MDS is not active";
+      r = -CEPHFS_EINVAL;
+      goto out;
+    }
+    else if (whoami != 0) {
       *css << "Not rank 0";
       r = -CEPHFS_EXDEV;
       goto out;
@@ -2761,7 +2766,12 @@ void MDSRankDispatcher::handle_asok_command(
        }));
     return;
   } else if (command == "scrub abort") {
-    if (whoami != 0) {
+    if (!is_active()) {
+      *css << "MDS is not active";
+      r = -CEPHFS_EINVAL;
+      goto out;
+    }
+    else if (whoami != 0) {
       *css << "Not rank 0";
       r = -CEPHFS_EXDEV;
       goto out;
@@ -2783,7 +2793,12 @@ void MDSRankDispatcher::handle_asok_command(
        }));
     return;
   } else if (command == "scrub pause") {
-    if (whoami != 0) {
+    if (!is_active()) {
+      *css << "MDS is not active";
+      r = -CEPHFS_EINVAL;
+      goto out;
+    }
+    else if (whoami != 0) {
       *css << "Not rank 0";
       r = -CEPHFS_EXDEV;
       goto out;
@@ -2805,7 +2820,12 @@ void MDSRankDispatcher::handle_asok_command(
        }));
     return;
   } else if (command == "scrub resume") {
-    if (whoami != 0) {
+    if (!is_active()) {
+      *css << "MDS is not active";
+      r = -CEPHFS_EINVAL;
+      goto out;
+    }
+    else if (whoami != 0) {
       *css << "Not rank 0";
       r = -CEPHFS_EXDEV;
       goto out;