[GitHub] [hudi] kazdy commented on issue #7778: [SUPPORT] NPE in spark structured streaming reading hudi table from checkpoint that no longer exists

["kazdy (via GitHub)" <gi...@apache.org>]

kazdy commented on issue #7778:
URL: https://github.com/apache/hudi/issues/7778#issuecomment-1412143207

   @codope I think this PR addresses a different issue. I reset the identifier manually anyways before running into this issue.
   
   Here the issue is that start offset provided from spark checkpoint no longer exists in hudi table/timeline and incremental query can not read from that instant (?), regardless of these identifiers. This is the streaming source side, and the PR only touches the streaming sink.
   
   The scenario is
   one streaming job consumes data from kafka and saves to hudi table raw
   second streaming job consumes hudi table raw and writes to hudi table processed
   
   first job is running for a while and second is stopped, so commits are cleaned from table raw
   after a while I start second job and it fails with NPE
   
   if I remove spark checkpoint and reset batchId in hudi commit file, then it starts consuming table from earliest available instant
   


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