Another HF21 post-mortem post

@untersatz is sitting quietly outside the top 100 active witnesses - steemian.info

@untersatz is only a baby witness but he managed the HF21 relatively smoothly! This is probably because @contrabourdon (in the AEST timezone) was fast asleep and by the time he got up, all the drama had blown over...

Thanks to the genius of @someguy123's Steem-in-a-box solution (with MIRA), all @contrabourdon had to do to fix the stalled block was to run the following commands (after a fix was uploaded to GitHub):

./run.sh install latest-mira
./run.sh restart

This is what the server was showing during the stalled block:

Here's the patch being applied:

Back to normal:

Unfortnately, some of my fellow witnesses (like @justyy) weren't so fortunate: Both Nodes are Replaying.... Unfortunately..