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On a quest for missing stacktraces

One comment to our recent blog post brought back some memories about a specific experience. The type of experience I wish I had not experienced. Long time before we founded Plumbr I ...
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Throwing Exceptions – slow and ugly

This post is about a historical experience in conjunction with recently applied performance optimization techniques. Years ago I was swearing at a particular application where I had ...
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Why is your software aging?

I recently stumbled upon a term software aging. My first thoughts on the subject were not too positive, especially after reading the Wikipedia definition. Just Another Buzzword was ...
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Understanding the OutOfMemoryError

Whenever you find yourself staring a stacktrace with OutOfMemoryError in it, it should all be crystal clear. The program has got no more elbow room and is dying just because of lack ...
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Reducing memory usage with String.intern()

Every now and then you have a dying production application at hand. And you know you need to patch it as fast as possible. So have we, and thought it would be interesting to share one ...
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Why does my Java process consume more memory than Xmx?

Some of you have been there. You have added -Xmx option to your startup scripts and sat back relaxed knowing that there is no way your Java process is going to eat up more memory than ...
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Reducing memory consumption by 20x

This is going to be another story sharing our recent experience with memory-related problems. The case is extracted from a recent customer support case, where we faced a badly behaving ...
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How to create a memory leak

This is going to be a rather evil post – something you will be googling when you really wish to make someone’s life a misery. In the world of Java development memory leaks are just ...
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There is no application server

We have recently posted data about application server market share we gathered from the free Plumbr deployments. And it resonated well – via different channels we got hundreds of ...
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Hunting down memory leaks: a case study

A week ago I was asked to fix a problematic webapp suffering from memory leaks. How hard can it be, I thought – considering that I have both seen and fixed hundreds of leaks over ...
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