[jira] [Updated] (KAFKA-3938) Fix consumer session timeout issue in Kafka Streams

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

     [ https://issues.apache.org/jira/browse/KAFKA-3938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang updated KAFKA-3938:
---------------------------------
    Labels: architecture  (was: )

> Fix consumer session timeout issue in Kafka Streams
> ---------------------------------------------------
>
>                 Key: KAFKA-3938
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3938
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>            Reporter: Guozhang Wang
>            Assignee: Guozhang Wang
>              Labels: architecture
>
> After KIP-62 / KAFKA-3888 is merged in, Kafka Streams should leverage this new feature to fix the session timeout issue that can be caused by:
> 1. long rebalance period due to state store restoration.
> 2. exceptional long processing time for a batch of records.
> Also we need to consider:
> 1. state store directory locking mechanism between rebalances while one instance is grabbing tasks from another instance on the same machine.
> 2. exceptional handling in Kafka Streams: what should we really expose to users and what should be handled automatically?



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