[GitHub] [pulsar] geomagilles opened a new issue #6527: Having a Key_Shared mode for functions

[GitBox <gi...@apache.org>]

geomagilles opened a new issue #6527: Having a Key_Shared mode for functions
URL: https://github.com/apache/pulsar/issues/6527
 
 
   **Is your feature request related to a problem? Please describe.**
   As functions can manipulate states, race conditions may occur if functions processed in parallel want to update state for the same key. 
   
   **Describe the solution you'd like**
   having a Key_Shared mode for functions - similar to Key_Shared subscription mode for consumers  - would guarantee that 2 functions would not run in parallel for the same key
   
   **Describe alternatives you've considered**
   Another solution could be to have transactions enabled for states, but i'm not sure it's even possible.
   
   **Additional context**
   

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