[jira] [Resolved] (KAFKA-10097) Avoid passing task checkpoint file externally

["Boyang Chen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-10097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Boyang Chen resolved KAFKA-10097.
---------------------------------
    Resolution: Fixed

> Avoid passing task checkpoint file externally
> ---------------------------------------------
>
>                 Key: KAFKA-10097
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10097
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Boyang Chen
>            Assignee: Boyang Chen
>            Priority: Major
>
> In StreamTask, we have the logic to generate a checkpoint offset map to be materialized through StateManager#checkpoint. This map could be either empty map or null, which the former case indicates to only pull down existing state store checkpoint data, while the latter indicates no need to do a checkpoint in the case such as we are suspending a task.
> Having two similar special logics for checkpointing could lead to unexpected bugs, also we should think about separating the empty checkpoint case vs passed-in checkpoint case.



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