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Posted to issues@fluss.apache.org by "luoyuxia (via GitHub)" <gi...@apache.org> on 2025/09/12 10:20:12 UTC
[I] LakeSourceSplit should be backcompatible [fluss]
luoyuxia opened a new issue, #1690:
URL: https://github.com/apache/fluss/issues/1690
### Search before asking
- [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar.
### Description
Current LakeSourceSplit is not back-compatible.Assuming we have two version of Serializer v1 and v2.
1: flink use v1 Serializer, and do snapshot, it'll use the v1 Serializer to serialize it.
2: then, assuming we upgrade to v2 Serializer, flink restore from the state which used v1 Serializer
3: flink should use version 1 to deserialize the split. **But now, it always the version of the latest Serializer which is v2** That's the problem. We should use v1 to deserialize it.
We need to store v1 into state, then restore from state, pass v1 to the deserializer to deserialize it.
### Willingness to contribute
- [ ] I'm willing to submit a PR!
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Re: [I] LakeSourceSplit should be backcompatible [fluss]
Posted by "luoyuxia (via GitHub)" <gi...@apache.org>.
luoyuxia closed issue #1690: LakeSourceSplit should be backcompatible
URL: https://github.com/apache/fluss/issues/1690
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Re: [I] LakeSourceSplit should be backcompatible [fluss]
Posted by "caozhen1937 (via GitHub)" <gi...@apache.org>.
caozhen1937 commented on issue #1690:
URL: https://github.com/apache/fluss/issues/1690#issuecomment-3284933704
Hi @luoyuxia , I'm interested in this task. Can you assign it to me?
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