Restart stale memcached after restore

Author: rtomayko

bin/ghe-restore

@@ -207,6 +207,11 @@ ghe-ssh "$GHE_HOSTNAME" -- 'ghe-import-authorized-keys' < "$GHE_RESTORE_SNAPSHOT
 echo "Restoring Elasticsearch indices ..."
 ghe-restore-es-${GHE_BACKUP_STRATEGY} "$GHE_HOSTNAME" 1>&3
 
+# Restart an already running memcached to reset the cache after restore
+if [ "$GHE_VERSION_MAJOR" -ge 2 ]; then
+    ghe-ssh "$GHE_HOSTNAME" -- "sudo restart -q memcached 2>&1 || true"
+fi
+
 # When restoring to a host that has already been configured, kick off a
 # config run to perform data migrations.
 if $instance_configured; then