> FDR overview Flight Data Recorder by Bill.Baker@Oracle.com "always on" diagnosability mechanism for Linux Ideal for subsystems which have a rich set of ftrace probes like NFS & SUNRPC Focus on exception conditions, not FYI probes though, not a policy of FDR, per se What is FDR? A systemd daemon which: enables ftrace probes based on a config file captures the output and saves it to a file manages space consumption, logrotate(8) > Where can I get this awesome tech? > Need to work with Steve Dickson to get this included in Fedora > Source has released to github https://github.com/oracle/fdr "Universal Permissive License" (UPL) > Download, build, customize, enjoy > Next steps Get this into fedora, ultimately RHEL, OL Enhancements: eliminate modprobe keyword, hook into modprobe.d raw data capture, ala trace.dat, vs. textual output Previous: http://nfsv4bat.org/Documents/BakeAThon/2018/fdr-preso.txt