Very naive/simplistic logger to see how incoming file transfers are moving => able to gauge transfer speeds of files and/or total halt of transfers after the fact.

ls-logger.sh

#!/bin/bash

# crontab example:
# 30 20 * * * echo "" > /tmp/bar ; /data/network-debugging/ls-logger.sh
# 30 08 * * * echo 1 > /tmp/bar

INPUT_DIR=/data/foobar/input
DTM="$(date +%Y-%m-%d-%H-%M)"
LOGFILE="/data/network-debugging/ls.log-$DTM"

foo=`cat /tmp/bar`

while [ "$foo" == "" ]; do
	ls --full-time $INPUT_DIR | xargs -n1 -I% sh -c 'echo -e "$(date --rfc-3339=ns) %"' >> $LOGFILE

	sleep 1
	foo=`cat /tmp/bar`
done


gzip $LOGFILE