Install haveged to improve entropy on the node
I ran into an issue that rsync was super slow (#826 (closed)).
I then tried to create a test file image from /dev/random
for network performance testing and noticed that the dd cmd (dd if=/dev/random of=/tmp/rand.img bs=1M count=100
) stalled. Then I looked at the current available entropy (cat /proc/sys/kernel/random/entropy_avail
), which was super low.
As soon I installed haveged (an entropy improving daemon) with apt install haveged
the avail. entropy was high enough again.
Edited by Varac