Java

Java: Heap Size

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Ergonomics: Estimated Ergonomics algorithm Initial heap size = 16384/64 = 256M Maximum heap size = 16384/4 = 4096M   Windows java -XX:+PrintFlagsFinal -version | findstr /i “HeapSize PermSize ThreadStackSize”   Ubuntu java -XX:+PrintFlagsFinal -version | grep -iE ‘HeapSize|PermSize|ThreadStackSize’

Java

Jupyter: Install

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https://www.digitalocean.com/community/tutorials/how-to-set-up-jupyter-notebook-with-python-3-on-ubuntu-18-04   Not access from browser. http://127.0.0.1:8888/?token=6935ee9bb9c26ed8a89cd0c0953dff411d0eba559234529f

Java

Java: CLI and Apache using diferent versions

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I have a Talend Job (which runs in Java), and I’m able to successfully run it on the CLI, but I made a Script to run it directly from the web and got the following error: Exception in thread “main” java.lang.UnsupportedClassVersionError: malla_new_2019_10_21/crm_email_builder_0_1/CRM_Email_Builder : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:808) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at […]