carloea2 opened a new issue, #8277:
URL: https://github.com/apache/texera/issues/8277

   ### What happened?
   
   Registering an output port a second time correctly keeps the first port 
object, but starts replacement result and state storage writers before checking 
for the duplicate. The new writer references overwrite the old entries, leaving 
the original writer threads running and potentially writing to stale storage.
   
   Expected behavior: duplicate output-port registration does not start another 
writer set.
   
   Before: one registered port starts two writer sets
   
   After: one registered port keeps its original writer set
   
   ### How to reproduce?
   
   Add the same output port twice with storage URIs and observe that 
`set_up_port_storage_writer` is called twice although only one port remains 
registered.
   
   ### Version or branch
   
   1.3.0-incubating-SNAPSHOT on main
   
   ### Commit hash
   
   50321e403c82df299a13deb50a7f9849dd93bdba
   
   ### Browsers
   
   Not browser specific
   
   ### Relevant log output
   
   One output port is registered while two storage writer sets are started.
   


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