fredliu

11 ms·

91.
by fredliu 9y ago
ah, thanks, that's what i wanted to ask. Since it's MQTT, how does it support iOS when the app is in the background? or it won't support that scenario on iOS? On Android, does it also use MQTT to maintain a connection? instea
92.
by fredliu 9y ago
Thanks for the response. I should have been more specific, what's AppSync's mechanism for push notification for the 3 platforms: FCM (GCM?) for Android? APNs for iOS? HTML5 Push API for browsers?
93.
by fredliu 9y ago
How/Does it handle push notifications to iOS/Android/Web? Similar to Firebase?
94.
by fredliu 9y ago
Facebook is indeed in a crisis, but I just got the feeling that the media is exaggerating anything that has the slightest negative bend to pour more fuel to the fire.
95.
by fredliu 9y ago
Definitely not just you. And to me, it's not just Bloomberg, looks like most of traditional media companies are out this time.
96.
by fredliu 9y ago
In short, at the scale any block service is intended to serve, HDDs/SSDs are going to fail, networks are going to be down, data corruptions are going to happen, unpredictable latencies are going to appear, etc. etc. All these failures
97.
by fredliu 9y ago
Maybe I'm biased, but personally, I never ever clicked on any ads showed up along my google search query, even if they are relevant. I just can't get rid of the nagging feeling that: "there gotta be better deals else where (e
98.
by fredliu 9y ago
With the risk of being down-voted, I would like to ask does "fight for freedom of expression and social rights" really has to be the polar opposite of "pro-business and more money-driven"? To me, those are answers/a
99.
by fredliu 9y ago
I think what you said just confirmed my point: Is "Lower their expectations" necessarily a good thing? Especially when we are talking about under a professional environment. "He's really an American, he doesn't real
100.
by fredliu 9y ago
I heard the other side of the story that ABCs could have a hard time in China, because they look just like full han Chinese, but when people find out you are not really "Chinese Chinese", attitudes/expectations/behaviors
101.
by fredliu 9y ago
I feel these type of commentary often times achieving exactly the opposite of what it advocates, if it ever achieves anything. Maybe because the TL;DR is buried midway through the post, or because the actual reasons to dissuade buying an Ec
102.
by fredliu 9y ago
Is this a response/competitor against AWS DeepLens?
103.
by fredliu 9y ago
From the website, pretty hard to figure out exactly what's different about it. From the looks, is it something like AWS's QuickSight?
104.
by fredliu 9y ago
>Playboy: And in the meantime? >Jobs: The developments will be in making the products more and more portable... maybe the merging of the telephone and the personal computer. Hard to believe this was 1984, it almost sounded like the or
105.
by fredliu 9y ago
I don't know much about Japanese, but in written Chinese, the stroke order is less likely to be consistent. One of the challenges for early leaners of writing Chinese characters is to "get the stroke order right", and many, e
106.
by fredliu 9y ago
As mentioned in the other comment, I was actually only thinking about use cases like Athenta + csv_on_s3. and that's the really "low cost" approach I was referring to for analytical data.
107.
by fredliu 9y ago
I do know Athena is built on top of Presto and it can pair with lots of different data sources. But somehow when talking about Athena I always end up thinking about using big CSVs on S3 as data source, so what I really meant was Athena+S3 I
108.
by fredliu 9y ago
Not sure if it's related, and AWS Athena is not a Database in a strict sense (or in any sense at all since it's not a transactional DB), but it seems to offer both scale and lower cost if it fits your requirements (read only, DW l
109.
by fredliu 9y ago
This is true, but no mandate on encryption in the HTTP/2 standard was an deliberate decision, one of the very few differences between HTTP/2 and SPDY. But yes, practically, you can't use HTTP/2 without encryption nowaday
110.
by fredliu 9y ago
Anybody knows how/if the camera/player pair support 6-dof?
111.
by fredliu 9y ago
STUN is for signaling, but the hole-punching business is not 100% guaranteed to work, so you need TURN as the back up relay server. DTLS is needed for both p2p traffic and the replaying traffic through TURN, so your TURN server does need DT
112.
by fredliu 9y ago
Thanks for the clarification. I was aware of the DTLS requirement for WebRTC, but not sure the whole WebRTC stack support on erlang/OTP. Now thinking about it, maybe an erlang/elixir/whatever-on-BEAM implementation of STUN&#x
113.
by fredliu 9y ago
* DTLS : This lets it talk to WebRTC clients Could you elaborate more on this? I don't know much about erlang/OTP's support for WebRTC. Does adding DTLS makes erlang/OTP possible to talk to WebRTC clients because WebR
114.
by fredliu 9y ago
Sure, labor is cheap in China, but still, you'd pay $0 for the pilot for the unmanned drone, and it can fly 24/7. Edit: ok, maybe not $0 since the drone may not be autonomous, but still, much cheaper operating drones on the ground
115.
by fredliu 10y ago
I think since it's internal services, you control both the client and server side. Applying back-pressure would be a good alternative than just using rate limiter on the server end and let your client just flood away your internal serv
116.
by fredliu 10y ago
Looks like most of the use cases you mentioned could benefit from this? About "good network", today's wireless network's peak performance might be enough, but being mobile, you can't guarantee you always have that p
117.
by fredliu 10y ago
Interesting, I'm aware of the hassle to build it, but constant regression...that means it's not production ready yet. Regarding the same regression in Chrome, does it mean the WebRTC in stable version of Chrome also has the same c
118.
by fredliu 10y ago
Great article. Does anybody have any experience using WebRTC out of the browser context? E.g. using Android's webRTC lib without using a browser?
119.
by fredliu 10y ago
No expert here either, but I suppose that meant the wire has essentially only "length" (e.g. x dimension), and no "thickness" (y dimension)?
120.
by fredliu 10y ago
Another "serverless cron" option from aws is their Data Pipeline service. It is intended for data processing as its name implies but does fits the bill for lots use cases as a generic "serverless cron". Note that Lambda

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