isignal

5 ms·

1.
by isignal 26d ago
You can use a distributed database like yugabytedb or crdb. They are horizontally scalable, support postgres (yugabytedb has much better postgres compatibility). Yugabytedb also supports the Cassandra API.
2.
by isignal 1mo ago
Two concurrent deductions of inventory do contend but only during the actual DB update. That is just normal DB locking for SQL isolation levels. The blog refers to explicit locking by the app, which is where skip locked comes in.
3.
by isignal 1mo ago
Yes, at a high level. It doesn't rely on skip locked, which is not cheap at DB level. DB has to still typically run query and keep going until it finds an unlocked item. Deducting and checking inventory counts are simpler ops inside th
4.
by isignal 1mo ago
It seems there could be a simpler solution. 1. Deduct the reservation from the inventory when the user starts to order, but in the same txn also maintain a separate row for the in progress order flow. 2. If the order flow is aborted or time
5.
by isignal 1y ago
The EB5 visa, by comparison, has much more clear requirements. It is not sure if this intended as a backdoor to EB5 or a replacement.
6.
by isignal 1y ago
There already was such a system with more concrete requirements. It is called the EB5 visa and has a path to green card. What does this new method bring to the table?
7.
by isignal 1y ago
Processes can die independently so the state of a concurrent shared memory data structure when a process dies while modifying this under a lock can be difficult to manage. Postgres which uses shared memory data structures can sometimes need
8.
by isignal 1y ago
Thanks for the pointers!
9.
by isignal 1y ago
Aren't the alternatives you mentioned - icerberg and duckdb - both storage solutions while spark is a way to express distributed compute? I'm a bit out of touch with this space, is there a newer way to express distributed compute?
10.
by isignal 1y ago
https://www.patentlyapple.com/2024/04/apple-now-makes-14-of-... You are incorrect. > Apple Inc has assembled $14 billion worth of iPhones in India in fiscal 2024, Bloomberg News reported on Wednesday.
11.
by isignal 2y ago
Postgres supports indexing an arbitrary json document. https://www.postgresql.org/docs/current/datatype-json.html Not sure if the query capabilities and syntax match azure docdb but the basic functionality should
12.
by isignal 2y ago
The transaction log maintained from time 0 would be equivalent but too expensive to store compared to the tables.
13.
by isignal 2y ago
Resale values are lower in US because they factor in the 7.5k USD tax credit and the state tax credit mostly, there is plenty of demand for used teslas for example.
14.
by isignal 2y ago
Consumer side can allow you to run ads and get Google like revenue in the future.
15.
by isignal 3y ago
Intel also had a later chance when Apple tried to get off the Qualcomm percent per handset model. This was far after the original iPhone. Apple also got sued for allegedly sharing proprietary Qualcomm trade secrets with Intel. And Intel sti
16.
by isignal 3y ago
Are they cheekily quoting the CEO who made a similar statement last week?
17.
by isignal 3y ago
Just a note that this requires the admin to enable linger if the units need to be started before the user logs in and run after they logout.
18.
by isignal 3y ago
Microsoft, Facebook, google, Apple, Amazon etc are all hugely profitable companies. If anyone can afford to ride out wall streets short term thinking, it is them.
19.
by isignal 3y ago
For a key value store you expect server side latencies less than 5 ms for point gets and writes.
20.
by isignal 3y ago
Even if wages did catch up, retired folks are permanently disadvantaged. There’s a reason why the Fed targets a low inflation rate by default than letting it float freely.
21.
by isignal 3y ago
Body scan meditation is one particular form of meditation that I’ve found effective for sleep.
22.
by isignal 3y ago
He did condemn the attacks, not sure why you think he didn’t take the context into account. https://twitter.com/paddycosgrave/status/1713659060153618680
23.
by isignal 3y ago
Is it a leak driving this? Trudeau apparently brought it up in the G20 summit so it wasn’t a last minute call. I would expect internal pressure from his political partners.
24.
by isignal 3y ago
Where there’s lack of sleep, willpower is one of the first things to be affected. So the authors advice only applies in a narrow set of cases. Exercise, for example, might be a better way of getting out of the vicious loops caused by lack o
25.
by isignal 3y ago
Wouldn’t say they missed the boat. ISRO did launch some of the OneWeb constellation recently https://en.m.wikipedia.org/wiki/NewSpace_India_Limited It’s just a slow ramp up. India’s rockets aren’t yet capable pf heavy
26.
by isignal 3y ago
Yes, that part is unfortunate. It requires full routing number and account number. Maybe the phone number to account number mapping might be seen as a privacy risk in USA.
27.
by isignal 3y ago
It is live on star one credit Unions mobile app. On their interface, it still requires you to specify the target’s routing and ac number like an ACH transaction. So not the most usable now.
28.
by isignal 3y ago
Another difference is the use of phone numbers and simple email like identifiers in UPI. That doesn’t seem to be part of FedNow itself. What makes UPI very usable is that entering the phone number or a simple UPI id brings up some metadata
29.
by isignal 3y ago
It would make sense if they started out building a proprietary os (for which, btw, the count of people you mentioned is not enough, Microsoft employs vastly more people). If they contribute to open source projects and then cry for compensat
30.
by isignal 3y ago
Reuters and associated press have very good presence in most countries. Many American news reports use their reports.

More ›