sargun

71 ms·

721.
by sargun 12y ago
I was asked this question at an interview at $COMPANY last week. Heh. I failed pretty miserably.
722.
by sargun 12y ago
But, it wont be persisted across restarts in Mesos-land, because Mesos doesn't have the idea of data volumes. The way that Google (Omega) gets around this is having GFS deal with replication, and persisting all of their databases into
723.
by sargun 12y ago
Kafka is a log, not a queue. They have every so slightly different semantics, but logs have HOL blocking per partition for processing messages because they use a watermark, compared to queues, which track on a per-message basis.
724.
by sargun 12y ago
Let's talk about the sad state of clocks today. There exists a few ways to query NTP time on Linux. (1) Directly through NTP (2) the adjtimex syscall, (3) the ntp_gettime call. I found it hard to find many codebases using the proper NT
725.
by sargun 12y ago
From the Reddit post: [T + 15:45] Jon - Mission success. We have data but not good enough to put on the live stream yet (poor connection). Updates here as they come! Sounds good?
726.
by sargun 12y ago
Where is it? Is there a feed of its location, or the landing pad?
727.
by sargun 12y ago
My guess, and my understanding is that it probably uses the same tech that most enterprise WiFi networks use. They probably send fake deauth packets in order to disconnect stations. A lot of enterprise wireless solutions also do this for th
728.
by sargun 12y ago
So, I commented elsewhere on HN: https://news.ycombinator.com/item?id=8819389 about the move away from the current network security rules we have. I think that network-oriented defenses are not the right semantic for modern
729.
by sargun 12y ago
Doesn't that effectively become a "Two Generals' Problem" sort of thing? I mean, I guess links are reliable enough, but at what point do you decide when link severance is long enough to wipe the phone? What occurs if iCl
730.
by sargun 12y ago
I have a different view on security. A lot of people are talking about defense in depth, and security being enforced by the network. I think although that kind of works, it's largely a mistake. Security, as enforced by middleboxes is f
731.
by sargun 12y ago
I'd say that's a straight up work freeze, not just a change freeze.
732.
by sargun 12y ago
Can someone explain what this is exactly to me? Is it just the source tree / directory listing? It doesn't appear I can click through and view the code of any of these files, or am I mistaken?
733.
by sargun 12y ago
What's the status of Sage these days?
734.
by sargun 12y ago
Hydrogen? How are they storing that efficiently?
735.
Microsoft: Orleans Goes Open Source(orleans.codeplex.com)
2 points by sargun 12y ago|0 comments
736.
by sargun 12y ago
I wonder if this will lead to Docker finally acknowledging IPv6: ° https://github.com/docker/docker/issues/2174 ° https://github.com/docker/docker/pull/8947 ° https:/&#x2
737.
by sargun 12y ago
Corporate IT tends to lag in these sorts of things. Given that most people have ISP provided CPE, and that's the only device in their homes, it allows the ISP to have a much easier time migrating that user to IPv6. The rollout mechanis
738.
by sargun 12y ago
I think this is why the actor model, or CSP, is really nice, because it makes these things easier to reason about, and trace. In the actor model, you could dispatch the data to each thread and split up the processing.
739.
by sargun 12y ago
So, the leader must renew their lease every (period * ι), where ι < 1. The problem is that this assumes a synchronous network, or reliable clocks - since the Paxos implementation isn't tied to the master -- this results in the probl
740.
by sargun 12y ago
This is amazing. They've created the arbitrage market with reputation management that we need -- it suddenly builds a platform for Cherry, Homejoy, Exec, etc.. I wish they introduced the ability to have structured bids / sell orde
741.
by sargun 12y ago
Couple notes: Mis-spelling: "end-dhosts" Probably why they went with layer 3: http://sargun.me/a-critique-of-network-design-1 I'm very interested in their Fastpass research, and how it'll allow for bette
742.
A Critique of Network Design(sargun.me)
1 points by sargun 12y ago|0 comments
743.
by sargun 12y ago
Does anyone know what the actual CPUs are? It mentions it has 64 registers? My guess is ARM / MIPS, based upon: http://en.wikipedia.org/wiki/Processor_register How much scratch memory is there? Is it SRAM? Are the
744.
by sargun 12y ago
What about depleted Uranium? 19G / cm^3, 1.7 the density of lead. No idea what the cost is, but I can't imagine that waste material would be that costly.
745.
by sargun 12y ago
What processor did they use in order to put ECC on an ARM board?
746.
by sargun 12y ago
How interested are you, and in what quantity, and what storage quantity do you want to buy them?
747.
by sargun 12y ago
Differential Diagnosis is an excellent approach to debugging. Seeing debugging in the wild before, I've seen two, maybe three different approaches to debugging: 1) Magical thinking: This is the fear that the computer system has suddenl
748.
by sargun 12y ago
Assuming the RNG is a deterministic random number generator, then that should make the entire game deterministic? Given independent runs, the decisions that each cell takes should occur in order, and therefore achieve the same result.
749.
by sargun 12y ago
What happened to Fulcrum? I know Intel bought them. The FM6000 is still their top of the line chip. When can I get a new switch that's competitive to T2, with FlexPipe?
750.
by sargun 12y ago
Any idea what the forwarding plane is made of in these switches?

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