[jira] [Updated] (FLINK-3692) Develop a Kafka state backend

["Robert Metzger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger updated FLINK-3692:
----------------------------------
    Component/s:     (was: Core)
                 Runtime / State Backends

> Develop a Kafka state backend
> -----------------------------
>
>                 Key: FLINK-3692
>                 URL: https://issues.apache.org/jira/browse/FLINK-3692
>             Project: Flink
>          Issue Type: New Feature
>          Components: Runtime / State Backends
>            Reporter: Elias Levy
>            Priority: Major
>
> Flink clusters usually consume of a Kafka cluster.  It simplify operations if Flink could store its state checkpoints in Kafka.  This should be possibly using different topics to write to, partitioning appropriately, and using compacted topics.  This would avoid the need to run an HDFS cluster just to store Flink checkpoints.
> For inspiration you may want to take a look at how Samza checkpoints a task's local state to a Kafka topic, and how the newer Kafka consumers checkpoint their offsets to Kafka.



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