The ability to use introspection to dynamically determine the current code context and frame/stack can be a powerful tool for a developer. Introspection can be applied for debugging, logging, metrics collection, or method overloading based on type. I will show a simple example of its usage in this article.
Cloud Foundry deployed Java applications can send log events to stdout/stderr and then a bound syslog drain can send this to a logging solution like ELK for ingestion. One area that has always been tricky when dealing with logging is multi-line Java stack traces. By default, because each line in the stack trace has a … CloudFoundry: Extracting Java multiline exception stack traces from Logback and Log4j2 using Logstash
If you installed (or upgraded to) a later Ubuntu point release: >= 12.04.2, >=14.04.2, or >=16.04.2, you may now be wondering why the system is warning you upon every login that you will no longer receive security updates. WARNING: Security updates for your current Hardware Enablement Stack ended on 2016-08-04: * http://wiki.ubuntu.com/1404_HWE_EOL Although the first … Ubuntu: HWE Hardware Enablement Stacks, LTS, and the Kernel