Since each partition under the topic has a sink task, when the corresponding connector starts, it will connect to doris to determine whether the table exists.
When there are multiple topics, and each topic has multiple partitions, a large number of connections will be made to request doris at the moment of startup, causing the number of connections to exceed the limit.
This PR can reduce a repeated request to determine whether the database exists.
Since each partition under the topic has a sink task, when the corresponding connector starts, it will connect to doris to determine whether the table exists. When there are multiple topics, and each topic has multiple partitions, a large number of connections will be made to request doris at the moment of startup, causing the number of connections to exceed the limit.
This PR can reduce a repeated request to determine whether the database exists.