Death by a (Few) Thousands of Threads 👻

There are things in life that excites and scares you at the same time. Recently I helped out a case when it’s both exciting and scary. The problem was a gigantic 106 GB memory dump with a very small managed heap compared to the dump’s size. That hints unmanaged memory leak. While I’m fairly confident with memory dump analysis, I haven’t had a lot of good luck with unmanaged memory leaks. It could have turned into a big headache and unknown territory. But if it’s not me then who will go to hell? Then game is on.

Fatal Flaw with Geta-NotFoundHandler

A deep dive into a fatal flaw in Geta-NotFoundHandler that caused high CPU usage due to an endless loop triggered by an empty redirect rule.

A Curious Case of Free Objects

A memory dump investigation into rising memory usage and the mystery of free objects in the Large Object Heap.