What EXACTLY happened with Cardano’s network? Is my ADA investment safe? Will this issue EVER be a problem again?
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Timestamps:
0:00 – Something happened with Cardano
0:43 – Cardano DEV explains the problem
1:14 – What EXACTLY happened? (Founder Explains)
3:04 – Cardano DEV explains the problem (pt 2)
3:40 – Cardano behaved as expected? (Founder Explains)
5:29 – ‘stuff crashes all the time’ ???
6:46 – Is my ADA investment safe?
7:59 – Will this issue EVER be a problem again?
**Note: My overall opinion is that the name of the game is to accumulate as much Bitcoin as possible. Alts are interesting but a lot more speculative. I use them to accumulate more Bitcoin.
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Everything's great I came back and you can
see that she always breaks Sunday morning or Monday morning you know late late at night what
we don't know is we don't know the causal event That would knock the system into that particular
State something happened with cardano last night Seems like there's a lot of
confusion even for cardano holders The cardano community interacted with this tweet
in droves I appreciate cardano its Community the Whole crypto space can learn from what happened
with cardano last night so let's talk about it Did cardana go down is my investment safe
to fully understand why 60 of all Ada nodes Went offline the other day this is a cardano
developers take some of you will be aware of An incident last night at approximately this time
between these blocks which caused approximately 50 To 60 percent of cardano nodes to disconnect and
restart this appears to have been triggered by a Transient anomaly causing one of two reactions in
the Ada node some disconnected from appear others Through an exception and restarted I still don't
understand what exactly happened listen to this 60-second clip Charles hoskinson on what exactly
went down over the weekend today is January 23rd 2023 just a little bit of a postmortem on the
weekend we had an interesting issue let me go Ahead and share my screen if you look over here a
lot of people recognize that the network stalled For about two minutes so everything's great I came
back and you can see that [ __ ] always breaks Sunday morning or Monday morning you know late
late at night while everybody's sleeping that's Just how things work uh and anyway long and short
is that it seems to be a transient issue and it's Probably a combination of a collection of things
that happened at the same time which means that The reproducibility is unlikely so we pulled the
team together Sunday night it was a Sam Jared Um Arno and myself and we talked to the spos
Marcus guffler and uh and a few others were Willing to come on and we took a look at
all the logs we have and because we don't Have a rolling P CAP we couldn't actually see
what the transaction or block that actually Caused this trip of the of the balance R
code that was put in for optimization was Um we know where the air was called in the program
but it's hard to actually as digging through to Actually figure out what was the triggering
event for that uh that particular issue Um but it doesn't seem like it's reproducible so
cardano was stalled and if I'm understanding the Problem correctly such transient issues even
if they were to affect all cardano nodes were Considered in the design of the cardano node and
consensus the system behaved exactly as expected Block production was only briefly impacted with a
portion of the network falling out of sync before The nodes restarted therefore impact was low
akin to the delays that occurred during normal Operations and often seen as Epoch boundaries
most nodes automatically recovered depending on The stake pool operator deployment choice so the
system behaved exactly as expected interesting Let's listen to Charles hoskinson expand on
this the good news is cardano did exactly
What it was supposed to do when a stall occurs uh
basically the system uh recovers itself heals so The nose go back up and you'll notice you know
everything's great and it's back you know and That's exactly what we designed the nodes to do
it's not very satisfying because I ideally every Time a distributed system has a blip like this
or a stall like this you'd like to know an exact Cause but the problem is that distributed systems
sometimes create what are called emergent bugs so Locally it's not reproducible but a collection
of things create a collective Global state That for some reason triggers something in the
system basically stops uh for some people uh so Uh as I said there's a team working on it they're
looking at it and they're chipping away at it uh And we'll do a post-mortem inside the get issues
and um obviously if there's a bug in either a Haskell Library uh or a bug in the implementation
of the balance R which was put in for optimizing Uh cardano uh then you know it'll get patched but
the problem is bugs do require understanding of What triggered them and that's the thing we're
looking for right now and it's going to take a Little bit of time for us to get there some cases
you can't actually figure these ones out and they Come up once every five years once every six years
and and you just say okay you know the network Recovered we move on uh but uh sometimes you can
uh but you never want to drive yourself nuts over It listen in any distributed system stuff crashes
all the time and that's okay listen why in any Distributed system whether it be the Googleplex
or Microsoft Azure or Amazon web services so these Massive large-scale systems uh stuff crashes
all the time systems go down all the time for A variety of reasons it could be Hardware failures
or software failures hacking attempts cosmic rays All kinds of stuff they're even a famous cosmic
ray issue with Google bigtable and that's okay Because the second thing you do when you build a
large-scale distributed system is you build it for Resilience and self-healing so when these types of
things happen the system recovers which is exactly What occurred here it was really cool to see how
the spos came together and how quickly uh they Were on top of this and they're still looking in
fact it's a race condition everybody seems to be Looking for it and I'm really proud of uh Smog
and Andrew Westberg and all the others that just Showed up literally moments after this occurred
middle of the damn night and started collecting Large amounts of information and trying to
debug the the issue so it just shows you how Decentralized and resilient cardano has become you
give me your thoughts about this whole ordeal in The comments section below and the final question
we need to answer is my investment safe it's Important to remember this transactions were not
lost blocks were not dropped no money was lost the Network actually didn't halt you know it stalled
for a little bit and recovered but the network Was still moving forward it's still progressing so
it's not like Panic calls had to go to exchanges And they say up grade to this emergency node or
all the consensus people had to get together and Discord and figure out how to kick and restart
cardano it's self-healed and that's the point of
A decentralized distributed resilient system is
it should have this capability to self-heal and Rebuild itself in the event that it stalls from
a transient event and you know I'm proud that This happened get your tickets to bitcoin 2023
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informed on the entire cryptocurrency market I'll Leave you with this cardano holders will this
issue that affected 60 percent of cardano nodes Will this issue ever be a problem for cardano
ever again this particular issue will never Come up again likely in this format especially
if it's an emergent transient air and because Things are a moving Target when optimizations
come in it may actually recover that part of Code when Genesis comes in there's a different
operating model and network upgrades come in There's a different operating model obviously
input endorsers are going to completely change Everything so that's the other part of debugging
is that as you'd like to find something you may Actually just change the code that had the problem
and begin with while you upgrade the module to a Different state and not even know that you fixed
the particular Puck that the issue is caused with
