kgyrtkirk commented on PR #17861:
URL: https://github.com/apache/druid/pull/17861#issuecomment-2930895709

   I've opened a PR with relevant fixes: 
https://github.com/apache/druid/pull/18062
   
   I've improved the re-usage of some parts - which seem to have improved the 
execution time from 38m to 28m - not sure if that's really the case..we will 
see it in CI runs if that's really the case.
   
   but still a lot of threads were created so I was also digging into for the 
reason why there were so many extra threads were created - it plays a role that 
we have a lot of different suppliers (71) allocating some extra threads...not 
sure what to do with it right now - maybe its fine...but going down would 
require the system to spend less time initializing stuff....
   ```
   git grep 'use druidtest'|cut -d: -f 2-|sort|uniq -c
   ```
   I'll keep thinking about it.
   
   if you encounter such failures in the future - the `iq` file doesn't 
necessarily contain the most relevant exceptions; its just the one which 
surfaces ; like when you are using the console - however there is an xml file 
at `quidem-ut/target/surefire-reports/TEST-org.apache.druid.quidem.QTest.xml`  
which usually contains further details
   
   


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