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GC easy – Universal Java GC Log Analyser

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Memory Leak

AUTOMATING – OUTOFMEMORYERROR TROUBLESHOOTING

Troubleshooting OutOfMemoryError or any memory related problem is done manually even in 2019. Troubleshooting and identifying the root cause of OutOfMemoryError can even be automated, by following below mentioned 3 steps: 

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DISAPPOINTING STORY ON MEMORY OPTIMIZATION

Not all stories need to be success stories. Reality is also not like that. We would like to share a true, disappointing story (but a phenomenal learning experience) that may be beneficial to you.

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INCREASE THROUGHPUT

Throughput is the amount of productive work done by your application in a given time period. This brings the question what is productive work? Continue reading “INCREASE THROUGHPUT”

DIAGNOSE MEMORY LEAK

There are 8 types of OutOfMemoryError. In this, 5 types of OutOfMemoryError happens within the JVM heap. Continue reading “DIAGNOSE MEMORY LEAK”

HOW TO TROUBLESHOOT SUDDEN CPU SPIKES?

 This is an old, outdated article. We have devised a better and simpler strategy to troubleshoot CPU spikes in this article
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REPEATED FULL GC

Is your JVM experiencing Repeated Full GCs? Are you wondering what might have caused it? Are you struggling to fix it? Then you are reading right article.

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MEMORY LEAK IN JAVA EXECUTOR!

I was surprised to witness the Java Executor behavior, which caused “java.lang.OutOfMemoryError: unable to create new native thread” in our application. I would like to share my surprise (i.e. problem) and resolution to it.

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HOW TO CAPTURE HEAP DUMP? – JMAP, – XX:+HEAPDUMPONOUTOFMEMORYERROR

Heap dump is a snapshot of the Java memory. It contains information about the Java objects and classes in the heap at the moment the snapshot is triggered. It’s vital artifact to diagnose any Java memory related problems.

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