nickva opened a new pull request, #4881:
URL: https://github.com/apache/couchdb/pull/4881

   In `ken_server`, when fetching design docs fails with a timeout do not crash 
with a `badmatch` exception. Instead, resubmit the job for later processing.
   
   This bug was discovered by [Antithesis](https://antithesis.com/) simulation. 
Thanks to `@LuisMarcano-antithesis` for running the simulation!
   
   The error log lines were:
   ```
   [service_couchdb1] [I] [error] 2023-10-09T15:10:30.484954Z [email protected] 
emulator -------- Error in process <0.2165.0> on node '[email protected]' with 
exit value:
   [service_couchdb1] [I] 
{{badmatch,{error,timeout}},[{ken_server,update_db_indexes,2,[{file,"src/ken_server.erl"},{line,278}]}]}
   ```
   The workload used was https://github.com/nickva/couch-compose-workload
   


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