archive snowblossom slack general
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2018-11-04 02:25:47
Fireduck
I run nothing but debian
2018-11-04 02:26:09
Fireduck
apt-get install openjdk-8-jdk vim screen git dc dstat curl ntp
2018-11-04 02:26:15
Fireduck
that is my normal system stuff install
2018-11-04 06:56:23
Ghadras
short feedback: switched to lobstack and node synced without any issues
2018-11-04 07:41:10
Clueless
@Ghadras what version of java? release? it has to be 64 bit.
2018-11-04 07:44:31
Clueless
``` OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-2~deb9u1-b13) OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode) ```
2018-11-04 13:47:19
Clueless
block headers in a leveldb database are about 100MB
2018-11-04 15:46:51
Clueless
Sweet, serialized stats objects are 4M
2018-11-04 22:15:07
Gravitytiger
What TPS has the testnet achieved so far?
2018-11-04 22:15:48
Fireduck
10
2018-11-04 22:15:56
Fireduck
6000 tx blocks
2018-11-04 22:16:05
Fireduck
600 second block time
2018-11-04 22:17:46
Fireduck
Eventually going to increase the block size
2018-11-04 22:24:33
Rotonen
can a non-trusting distributed ledger system actually be throughput oriented?
2018-11-04 22:25:07
Rotonen
even the bank-internal closed distributed ledger systems are not high throughput systems, but just a convenience shorthand for sharing open books between parties
2018-11-04 22:47:02
Fireduck
Depends on your criteria. Suppose you don't mind a cluster rather than a single machine node.
2018-11-04 22:47:21
Fireduck
You could have a sharded braid of chains or a shared chain in general
2018-11-04 22:47:31
Fireduck
And hit whatever number you need
2018-11-04 22:47:37
Rotonen
well, the people whom seem interested usually pull out credit card processing levels of transactional densities
2018-11-04 22:48:07
Rotonen
or airline ticketing is an another staple i see in argumentation
2018-11-04 22:49:26
Rotonen
both of which rely on inherent optimizations from centralization and built in trust
2018-11-04 22:50:32
Fireduck
Sure. Airline ticket is silly, the airline can be central point
2018-11-04 22:50:37
Rotonen
what most people in practice have a problem with is waiting ~1h at the ATM for a transaction to confirm
2018-11-04 22:50:59
Rotonen
and what most people like is more predictable intercontinental transfers than using SWIFT
2018-11-04 22:51:14
Rotonen
or in some cases, even better within europe than SEPA
2018-11-04 22:51:30
Rotonen
within a country banks are capable of being unbeatable
2018-11-04 22:52:03
Fireduck
for the ATM use case, (or retail in general) unconfirmed is fine
2018-11-04 22:52:10
Fireduck
assuming it has some decent network penetration
2018-11-04 22:52:29
Fireduck
for the large swift or real estate transaction...well, plan on being there for an hour or two
2018-11-04 22:52:33
Rotonen
low fee unconfirmed and as soon as you leave higher fee double spend to yourself?
2018-11-04 22:52:50
Fireduck
any properly written node software will reject that
2018-11-04 22:52:54
Fireduck
snowblossom included
2018-11-04 22:53:08
Rotonen
first to confirm wins?
2018-11-04 22:53:27
Rotonen
it's not spent so long as it's still only in the mempool?
2018-11-04 22:54:03
Rotonen
i'm assuming the question above revolves around these kinds of themes of ability to consume from a bloated mempool
2018-11-04 22:54:47
Fireduck
First seen stays in mempool Double spend is rejected, never joins mempool
2018-11-04 22:55:28
Rotonen
so only split mempool visiblity is an issue
2018-11-04 22:55:39
Rotonen
fair enough, that'd require orchestration
2018-11-04 22:56:44
Rotonen
@Fireduck relatedly how's snowblossom on dropping stuff off the mempool?
2018-11-04 22:59:23
Fireduck
Nothing drops from menpool. Might need to change that.
2018-11-04 23:00:06
Rotonen
not yet relevant, but that one might require a lot of thinking to get right
2018-11-04 23:01:37
Fireduck
True
2018-11-04 23:03:20
Fireduck
I recently made a change such that low fee things can't use up all the block space
2018-11-04 23:03:34
Fireduck
Or in fact mempool space
2018-11-04 23:03:36
Rotonen
iirc you tested that on the testnet
2018-11-04 23:03:43
Fireduck
Yeah
2018-11-04 23:04:04
Rotonen
how'd that work in, say, network splits?
2018-11-04 23:06:21
Fireduck
Complex and am on mobile because wife is using my computer.
2018-11-04 23:06:27
Rotonen
kk
2018-11-04 23:06:44
Fireduck
Nodes gossip mempool to each other
2018-11-04 23:06:54
Fireduck
So on rejoin they will sync up
2018-11-04 23:07:05
Rotonen
i'm just generally curious around network split handling, as it's not infeasible entire countries can be off the internet for a week or two at some point in the near enough future
2018-11-04 23:07:22
Rotonen
and irc was such fun in the late 90s
2018-11-04 23:07:31
Fireduck
Yeah, that would likely be a big chain reorg
2018-11-04 23:08:07
Fireduck
I could add code that tries to put tx from orphan blocks into mempool
2018-11-04 23:08:24
Fireduck
That would try to replay everything on a merge
2018-11-04 23:08:33
Rotonen
i'd need pen and paper to try to plot that riffle shuffle
2018-11-04 23:09:10
Fireduck
It would work out if the sides we're truly disconnected
2018-11-04 23:09:26
Fireduck
And no one was signing with same key on both sides
2018-11-04 23:09:50
Fireduck
And the losing side didn't spend coinbase.
2018-11-04 23:09:58
Fireduck
So, a mess
2018-11-04 23:12:13
Rotonen
well, i’ve yet to see any system habdle something like that well
2018-11-04 23:12:33
Rotonen
centralized systems halt and bring in lawyers and accountants to sort a mess out
2018-11-04 23:13:34
Rotonen
and we can essentially only hope autopilot decentralized ones are beyond anyone’s ability to foresee in regards to how to stack the deck so they more consistently land on top?
2018-11-04 23:15:01
Fireduck
One answer there is if a wide section of nodes don't show your unconfirmed tx, don't accept it
2018-11-04 23:15:33
Fireduck
If you can't even reach most of the network, maybe don't even trust blocks
2018-11-04 23:17:08
Fireduck
Expressing hate for csv: /'"_:;!()[]|`~ ha parse that
2018-11-04 23:20:13
Clueless
@Fireduck urlencode. Done. :P
2018-11-04 23:21:55
Rotonen
@Fireduck there's more fun outside ascii for that
2018-11-04 23:23:10
Fireduck
Heh