#heisenbugs — Public Fediverse posts

Fixing Java Thread & Database Connection Leaks For Fun & Profit:
https://news.ycombinator.com/item?id=39189749
https://synystron.substack.com/p/fixing-java-thread-and-database-connection

#Java
#leaks
#threads
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#concurrency
#dataraces
#databases
#connectionpools
#troubleshooting
#Heisenbugs
#programming
#softwareengineering

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Unraveling #Heisenbugs with a smile,
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#java
#programming
#performance
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#rescues
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#refactors
#Heisenbugs
#troubleshooting
#reliability
#uptime
#distributed
#threading
#concurrency
#latency
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@ervan Hmmm. I'd also make sure you don't have order-dependent tests, share file objects, or run specs that mutate your #database (including #PStore with ultra-safe locking) outside of a #DBtransaction you can abandon.

This is less about making the tests parallel or concurrent than about whether you're using #testfixtures that create #Heisenbugs. Using #testfactories, #tempfiles, or an #MVCC #DB could help you a lot there.