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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2022/10/11 19:38:36 UTC

[GitHub] [druid] sh-vs commented on issue #13182: The Broker's Java threads hang on certain SQL queries

sh-vs commented on issue #13182:
URL: https://github.com/apache/druid/issues/13182#issuecomment-1275183816

   > Are you using null-compatible mode in your cluster?
   
   Yes we are. 
   
   As a test I switched this option. With the option set to `true` the query does not hang, but returns invalid data (a bunch of rows of zeros). I changed the filter to `"value" IS NOT NULL`, and that caused the thread to hang. I switched the setting back to `false`, and then the `IS NOT NULL` ran and returned no data, while the previous `"value" = ''` caused the thread to hang.
   
   Thanks for all the feedback. We do have plans to upgrade to Druid 24 soon.


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