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https://issues.apache.org/jira/browse/KAFKA-3522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15431288#comment-15431288
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Ishita Mandhan commented on KAFKA-3522:
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Just wanted to check in to see if now is a good time to bring this back up. I'm
looking for some small feature in streams to work on so if there's some other
minor feature that you'd rather me divert my attention to at the moment, that's
fine too :)
> Consider adding version information into rocksDB storage format
> ---------------------------------------------------------------
>
> Key: KAFKA-3522
> URL: https://issues.apache.org/jira/browse/KAFKA-3522
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Guozhang Wang
> Assignee: Ishita Mandhan
> Labels: architecture
> Fix For: 0.10.1.0
>
>
> Kafka Streams does not introduce any modifications to the data format in the
> underlying Kafka protocol, but it does use RocksDB for persistent state
> storage, and currently its data format is fixed and hard-coded. We want to
> consider the evolution path in the future we we change the data format, and
> hence having some version info stored along with the storage file / directory
> would be useful.
> And this information could be even out of the storage file; for example, we
> can just use a small "version indicator" file in the rocksdb directory for
> this purposes. Thoughts? [~enothereska] [~jkreps]
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