README.md

In jcheng5/stackdump: Dump sys.calls to stderr and quit

stackdump

Simple utility for R on Linux or Mac, that handles the SIGQUIT event by dumping the R call stack to stderr and exiting. This is a helpful way to see what your R process is doing when it appears to be hung.

To initialize:

stackdump::init()

Then while your R code is running, you can run this from a shell:

kill -SIGQUIT <pid>

This should cause your R console (or app log, if you're running a Shiny app on a server) to print a call stack.

If the quit argument is TRUE (the default is FALSE), then the R process will exit after printing the call stack. stackdump works by executing a bunch of R code in a signal handler, and that's not technically a very safe thing to do. If you'd rather be safe than risk a subtly corrupted process, it's better to quit.

jcheng5/stackdump documentation built on Aug. 1, 2019, 4:39 p.m.