Improve error handling when namespace cannot be moved

ee/app/services/geo/hashed_storage_migration_service.rb

@@ -26,7 +26,7 @@ module Geo
       project.expire_caches_before_rename(old_disk_path)
 
       if migrating_from_legacy_storage? && !move_repository
-        log_error("Repository could not be migrated to Hashed Storage", project_id: project.id, source: old_disk_path, target: new_disk_path)
+        log_error("Repository could not be migrated to Hashed Storage: move_repository failed", project_id: project.id, source: old_disk_path, target: new_disk_path)
         raise RepositoryCannotBeRenamed, "Repository #{old_disk_path} could not be renamed to #{new_disk_path}"
       end
 

lib/gitlab/shell.rb

@@ -289,10 +289,12 @@ module Gitlab
     #
     def mv_namespace(storage, old_name, new_name)
       Gitlab::GitalyClient::NamespaceService.new(storage).rename(old_name, new_name)
-    rescue GRPC::InvalidArgument
+    rescue GRPC::InvalidArgument => e
+      Gitlab::Sentry.track_acceptable_exception(e, extra: { old_name: old_name, new_name: new_name, storage: storage })
+
       false
     end
-    alias_method :mv_directory, :mv_namespace
+    alias_method :mv_directory, :mv_namespace # Note: ShellWorker uses this alias
 
     def url_to_repo(path)
       Gitlab.config.gitlab_shell.ssh_path_prefix + "#{path}.git"