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Posted to user@flink.apache.org by Jingsong Li <ji...@gmail.com> on 2020/05/19 02:46:07 UTC

Re: Is it possible to change 'connector.startup-mode' option in the flink job

Hi Thomas,

Good to hear from you. This is a very common problem.
In 1.11, we have two FLIP to solve your problem. [1][2] You can take a look.
I think dynamic table options (table hints) is enough for your requirement.

[1]
https://cwiki.apache.org/confluence/display/FLINK/FLIP-113%3A+Supports+Dynamic+Table+Options+for+Flink+SQL
[2]
https://cwiki.apache.org/confluence/display/FLINK/FLIP-110%3A+Support+LIKE+clause+in+CREATE+TABLE

Best,
Jingsong Lee

On Tue, May 19, 2020 at 10:37 AM Thomas Huang <ly...@hotmail.com> wrote:

> Hi guys,
>
> I'm using hive to store kafka topic metadata as follows::
>
> CREATE TABLE orders (
> 	user_id    BIGINT,
> 	product    STRING,
> 	order_time TIMESTAMP(3),
> 	WATERMARK FOR order_time AS order_time - '5' SECONDS) WITH (
> 	'connector.type'    	 = 'kafka',
> 	'connector.version' 	 = 'universal',
> 	'connector.topic'   	 = 'orders',
> 	'connector.startup-mode' = 'earliest-offset',
> 	'connector.properties.bootstrap.servers' = 'localhost:9092',
> 	'format.type' = 'json' );
>
> However, sometimes for incident handle, I have to set
> 'connector.startup-mode' to a specific timestamp, but I don't want to
> change the option setting in the hive table. Is there any way (api or ddl)
> to change  'connector.startup-mode'  option in the flink jobs, but not
> impact the option stores in hive?
>
>
> Best Wishes.
>


-- 
Best, Jingsong Lee

Re: Is it possible to change 'connector.startup-mode' option in the flink job

Posted by Thomas Huang <ly...@hotmail.com>.
Hi Jingsong,

Cool, Thanks for your reply.


Best wishes.
________________________________
From: Jingsong Li <ji...@gmail.com>
Sent: Tuesday, May 19, 2020 10:46
To: Thomas Huang <ly...@hotmail.com>
Cc: Flink <us...@flink.apache.org>
Subject: Re: Is it possible to change 'connector.startup-mode' option in the flink job

Hi Thomas,

Good to hear from you. This is a very common problem.
In 1.11, we have two FLIP to solve your problem. [1][2] You can take a look.
I think dynamic table options (table hints) is enough for your requirement.

[1]https://cwiki.apache.org/confluence/display/FLINK/FLIP-113%3A+Supports+Dynamic+Table+Options+for+Flink+SQL
[2]https://cwiki.apache.org/confluence/display/FLINK/FLIP-110%3A+Support+LIKE+clause+in+CREATE+TABLE

Best,
Jingsong Lee

On Tue, May 19, 2020 at 10:37 AM Thomas Huang <ly...@hotmail.com>> wrote:
Hi guys,

I'm using hive to store kafka topic metadata as follows::


CREATE TABLE orders (
        user_id    BIGINT,
        product    STRING,
        order_time TIMESTAMP(3),
        WATERMARK FOR order_time AS order_time - '5' SECONDS
) WITH (
        'connector.type'         = 'kafka',
        'connector.version'      = 'universal',
        'connector.topic'        = 'orders',
        'connector.startup-mode' = 'earliest-offset',
        'connector.properties.bootstrap.servers' = 'localhost:9092',
        'format.type' = 'json'
);

However, sometimes for incident handle, I have to set 'connector.startup-mode' to a specific timestamp, but I don't want to change the option setting in the hive table. Is there any way (api or ddl) to change  'connector.startup-mode'  option in the flink jobs, but not impact the option stores in hive?


Best Wishes.


--
Best, Jingsong Lee