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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/01/09 10:39:18 UTC

[GitHub] [arrow-datafusion] Ted-Jiang commented on issue #1531: Ballista scheduler dead loop in loadtest

Ted-Jiang commented on issue #1531:
URL: https://github.com/apache/arrow-datafusion/issues/1531#issuecomment-1008272250


   All 16 tokio-runtime-worker are lock at sled::subscriber::Subscribers `register` or `reserve`
   
   `register` : create a Subscribe  on some key in sled
   `reserve`:  create a Broadcast  on some key in sled
   above two operations will all acquire a same write lock 
   
   in the stack trace only `Thread_396250` get the lock, but stuck in the `std::sync::mpsc::SyncSender` for some reason.


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