trace

CloudFoundry: Extracting Java multiline exception stack traces from Logback and Log4j2 using Logstash


Categories: Containers, Logging

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

Ubuntu: Using strace to get a view into file and network activity of a process


Categories: Linux

strace is a handy utility for tracing system, file, and network calls on a Linux system.  It can produce trace output for either an already running process, or it can create a new process. Some of the most common troubleshooting scenarios are needing to isolate either the network or file system activity of a process.  … Ubuntu: Using strace to get a view into file and network activity of a process

Ubuntu: Using Fiddler to analyze Chrome/Firefox network capture


Categories: Linux

The prevalence of the long chains of firewall and reverse proxy solutions present in production infrastructure (and made even more popular with the dynamic routing introduced with containers) has made analysis of the end-user side of the network exchange a critical tool in troubleshooting. Fiddler has long been a solid tool for both proxy capture … Ubuntu: Using Fiddler to analyze Chrome/Firefox network capture