Does anyone have experience with migrating from DataTableVersion V3 -> V4? Since it is a cluster level config, the change feels risky, especially for large clusters with many tables. Could have been more manageable if there was a way to migrate per table, but not sure if this is possible.

@Rong R ^^

major change between data table v3 and v4 is the null bitmap support. broker should be able to handle both v3 and v4 format during upgrade. see: DataTableSerDeTest#testV3V4Compatibility

Thanks for the reply @Rong R. Do you know if v2 -> v4 would also be compatible change?

that's what I am not 100% sure. you can definitely set the cluster config to v2->v3 first. restart all components in normal upgrade fashion, then do the same from v3->v4

I guess that’s what I’ll have to do. Thanks! ✋