HeartSaVioR commented on issue #24173: [SPARK-27237][SS] Introduce State schema validation among query restart URL: https://github.com/apache/spark/pull/24173#issuecomment-507706671 I happen to revisit this, and succeed to change the approach to check schema only once per each stateful operator. The new approach is centralizing request to driver side, via RPC. Both executor and driver would cache the providerId with partition id erased, so requests would be minimized. @gaborgsomogyi Could you review the last change? I guess you've also lost context so need time to rebuild. Thanks for the support!
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