[jira] [Created] (FLINK-15262) kafka connector doesn't read from beginning immediately when 'connector.startup-mode' = 'earliest-offset'

[Shang Yuanchun (Jira)]

Bowen Li created FLINK-15262:
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             Summary: kafka connector doesn't read from beginning immediately when 'connector.startup-mode' = 'earliest-offset'
                 Key: FLINK-15262
                 URL: https://issues.apache.org/jira/browse/FLINK-15262
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Kafka
    Affects Versions: 1.10.0
            Reporter: Bowen Li
            Assignee: Jiangjie Qin
             Fix For: 1.10.0, 1.11.0


I created a kafka table in Flink to read from my kakfa topic (already has messages in it) in earliest offset, but `select * from test` query in Flink doesn't start to read until a new message comes. If no new message arrives, the query just sit there and never produce result.

What I expect is that the query should immediate produce result on all existing message without having to wait for a new message to "trigger" data processing.

DDL that I used according to DDL document at https://ci.apache.org/projects/flink/flink-docs-release-1.9/dev/table/connect.html#kafka-connector

{code:java}
create table test(name String, age Int) with (
   'connector.type' = 'kafka',
   'connector.version' = 'universal',
   'connector.topic' = 'test',
   'connector.properties.zookeeper.connect' = 'localhost:2181',
   'connector.properties.bootstrap.servers' = 'localhost:9092',
   'connector.startup-mode' = 'earliest-offset',
   'format.type' = 'csv',
   'update-mode' = 'append'
);
{code}





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