[jira] [Updated] (KAFKA-3478) Finer Stream Flow Control

["Guozhang Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-3478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang updated KAFKA-3478:
---------------------------------
    Component/s: kafka streams

> Finer Stream Flow Control
> -------------------------
>
>                 Key: KAFKA-3478
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3478
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: kafka streams
>            Reporter: Guozhang Wang
>             Fix For: 0.10.1.0
>
>
> Today we have a event-time based flow control mechanism in order to synchronize multiple input streams in a best effort manner:
> http://docs.confluent.io/2.1.0-alpha1/streams/architecture.html#flow-control-with-timestamps
> However, there are some use cases where users would like to have finer control of the input streams, for example, with two input streams, one of them always reading from offset 0 upon (re)-starting, and the other reading for log end offset.
> Today we only have one consumer config "offset.auto.reset" to control that behavior, which means all streams are read either from "earliest" or "latest".
> We should consider how to improve this settings to allow users have finer control over these frameworks.



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