rgw: stop realm reloader before store shutdown

otherwise the two could race to destroy the store

Fixes: https://tracker.ceph.com/issues/45969
Signed-off-by: Casey Bodley <cbodley@redhat.com>

diff --git a/src/rgw/rgw_main.cc b/src/rgw/rgw_main.cc
index 3fc16007a38e124bc27a4213956689ec45a62924..21c8c28fae77724e183585240054e947176690e7 100644 (file)
--- a/src/rgw/rgw_main.cc
+++ b/src/rgw/rgw_main.cc
@@ -603,10 +603,11 @@ int radosgw_Main(int argc, const char **argv)
   // add a watcher to respond to realm configuration changes
   RGWPeriodPusher pusher(store);
   RGWFrontendPauser pauser(fes, implicit_tenant_context, &pusher);
-  RGWRealmReloader reloader(store, service_map_meta, &pauser);
+  std::optional<RGWRealmReloader> reloader(std::in_place, store,
+                                           service_map_meta, &pauser);
 
   RGWRealmWatcher realm_watcher(g_ceph_context, store->svc()->zone->get_realm());
-  realm_watcher.add_watcher(RGWRealmNotify::Reload, reloader);
+  realm_watcher.add_watcher(RGWRealmNotify::Reload, *reloader);
   realm_watcher.add_watcher(RGWRealmNotify::ZonesNeedPeriod, pusher);
 
 #if defined(HAVE_SYS_PRCTL_H)
@@ -619,6 +620,8 @@ int radosgw_Main(int argc, const char **argv)
 
   derr << "shutting down" << dendl;
 
+  reloader.reset(); // stop the realm reloader
+
   for (list<RGWFrontend *>::iterator liter = fes.begin(); liter != fes.end();
        ++liter) {
     RGWFrontend *fe = *liter;