Review mydumper to determine if possible non zero result when backup has succeeded

[davidducos]

I do. Here's an example log. This one exited with result code 14.
(wgetpaste because I can't get github to accept it as a gzipped attachment.)

mydumper command was:
mydumper --defaults-file=/root/.my.cnf -CceGER --trx-consistency-only --threads 4 -o -l 300 -v 3

Running against MariaDB 10.6.14 in a three-node Galera cluster

Edited to add: The PREVIOUS invocation, from which I do not have a log, returned a code in the 34000 range as best I recall and was definitely failed, it aborted about 580MB into a 1.7GB dump.

Originally posted by @UnixRonin in #1296 (reply in thread)