flink-1.10.1 webui 查看metric问题

[zck573693104]

`CREATE TABLE source_table (
bulletin STRING
) WITH (
'connector.type' = 'kafka',
'connector.version' = 'universal',
'connector.startup-mode' = 'latest-offset',
'connector.topic' = 'webids-ids_dolog',
'connector.properties.group.id' = 'vul_testGroup',
'connector.properties.zookeeper.connect' = '',
'connector.properties.bootstrap.servers' = '',
'update-mode' = 'append',
'format.type' = 'json',
'format.derive-schema' = 'true'
);

CREATE TABLE sink_table (
vul_name STRING,
) WITH (
'connector.type' = 'kafka',
'connector.version' = 'universal',
'connector.startup-mode' = 'latest-offset',
'connector.topic' = 'vul_agg',
'connector.properties.zookeeper.connect' = '',
'connector.properties.bootstrap.servers' = '',
'update-mode' = 'append',
'format.type' = 'json',
'format.derive-schema' = 'true'
);

INSERT INTO sink_table SELECT
bulletin
FROM source_table;

`
执行上述job时候，web_ui 页面无法看到metric数据(接收了多少数据，发送了多数据)，不理解这是为什么。
还请孙老师能够讲解下，什么情况下面可以看到web_ui metric数据，什么情况下看不到。