@Override
            public Integer call() throws Exception {
                return consumerConfig.getTimeout();
            }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
test/test-integration-3rd/src/test/java/com/alipay/sofa/rpc/registry/zk/ZookeeperOverrideObserverTest.java