[jira] [Created] (FLINK-5478) Redis Sink Connector should allow update of command without reinstatiation

["Atharva Inamdar (JIRA)" <ji...@apache.org>]

Atharva Inamdar created FLINK-5478:
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             Summary: Redis Sink Connector should allow update of command without reinstatiation
                 Key: FLINK-5478
                 URL: https://issues.apache.org/jira/browse/FLINK-5478
             Project: Flink
          Issue Type: Improvement
          Components: Streaming Connectors
    Affects Versions: 1.1.4
            Reporter: Atharva Inamdar
            Priority: Minor


`getCommandDescription()` gets called when RedisSink is instantiated. This happens only once and thus doesn't allow the command to be updated during run time.

Use Case:
As a dev I want to store some data by day. So each key will have some date specified. this will change over course of time. for example: `counts_for_1484265600000` for 2017-01-13. This is not limited to any particular command. 

old link to connector (not sure where this lives now): https://github.com/subhankarb/flink/blob/be6b0a9277f191f812be422e45a6fda3247de388/flink-streaming-connectors/flink-connector-redis/src/main/java/org/apache/flink/streaming/connectors/redis/RedisSink.java#L114

I wish `getCommandDescription()` could be called in `invoke()` so that the key can be updated without having to restart.



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