GitHub

Setting Java heap size via TEST_CLUSTER_PARAMS or es_params doesn't work

If I try to provide -Xms500m etc to set the Java heap size via TEST_CLUSTER_PARAMS as mentioned in the README or via the es_params argument when trying to start my test cluster I get ERROR: X is not a ...
InfoWorld

Java Tip 130: Do you know your data size?

Recently, I helped design a Java server application that resembled an in-memory database. That is, we biased the design toward caching tons of data in memory to provide super-fast query performance.
TheServerSide

Fix Java memory leaks without costly JVM heap dumps by example

Community driven content discussing all aspects of software development from DevOps to design patterns. I don’t know anyone who likes investigating a Java heap dump. They can be massive — literally ...
GitHub

Java Heap Space Error When Running iSweep on Regions with Excess IBD

#!/bin/bash #SBATCH --job-name="ISweep" #SBATCH --mem-per-cpu=250G #SBATCH --cpus-per-task=1 #SBATCH -t 7-00:00:00 # Maximum execution time (D-HH:MM) #SBATCH --mail ...
InfoWorld

Heap Dump and Analysis with VisualVM

In previous blog posts, I have covered using VisualVM to acquire HotSpot JVM runtime information in a manner similar to jinfo and how to use VisualVM in conjunction with JMX and MBeans in a manner ...