ZKOperations.ignoreError(
client.create(path, null, CreateMode.PERSISTENT),
KeeperException.NodeExistsException.class, path).get();
client.stopAndWait();
zkConnectStr = String.format("%s/%s", zkConnectStr, zkNamespace);
} catch (Exception e) {
throw Throwables.propagate(e);
} finally {
client.stopAndWait();