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myrandomcomment

3,844 karma · joined March 27, 2012

Networking & Technology geek in Silicon Valley (The real place not the show, however sometimes it’s hard to tell).
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myrandomcomment··on Tell HN: If you use Verizon, opt out of “Custom Experience”
On T-Mobile LTE. Just connect to VPN using NordLynx which is wireguard. Speed test show 16Mpbs down so...
myrandomcomment··on UK to expand War on Drugs with passport confiscation for recreational users
Because this is so going to work.

Legalize and tax. Remove the incentives that drive the drug wars and the narco gangs. Drug gangs vs. corporations with a profit motive, I will bet on the corporations.

myrandomcomment··on Lithuania’s Goods Barred from Entering Chinese Ports
Well no more ordering from Zenni.

Let see if the EU has the stones to respond, but I doubt it.

myrandomcomment··on Former Ubiquiti employee charged with stealing data and extorting company
Thank you for sharing. Unfortunately this is not the issue. I wish it was that simple as they make an adapter for that.
myrandomcomment··on Former Ubiquiti employee charged with stealing data and extorting company
I used to recommend them. Not anymore. My complete home setup is all their kit (the GUI means that if I kick it, the family can likely sort - it is import). I opened a case that a replacement switch (new model, old is EOL) did not work with one of their POE devices. I know this stuff backwards and forwards. I did my testing and basically sent the case to support with all the details (I know this stuff at the ASIC level). Wasted my time for a week. Finally I just said screw it and RMA the switch (nothing wrong with it) because support would not move. I received the replacement and surprise, same issue. Only after that I got the "sorry, we will reach out to L2 support." Wasted my time on a good debug that clearly ID the issue and I had to pay for shipping on RMA. I am stuck with them for now, but as soon as I can find a better offering I am going switch.

(My issue is that I understand that most users are clueless, heck I started in support for Win3.1 for an ISP, but the stuff in the debug clearly was a statement that I understood what I was say, and even as a Jr. engineer 30 years ago, I would have read it and said "hum, this dude knows his stuff, maybe I should ask at the next level").

myrandomcomment··on Apple says it will notify users whose iPhones were hacked by spyware
It seems impossible for Apple to do something decent without someone on this site automatically running to a reason based on malice.
myrandomcomment··on Ask HN: Are there any 4K “dumb” televisions?
Xfinity requires login. It is not open.
myrandomcomment··on Ask HN: Are there any 4K “dumb” televisions?
There a number of guides on disabling this. That being said you still need to bring the SD card to doctor every 6 months for review. This is a good thing. The doctor is trying to help you. I know someone that died because they went on a trip and forgot their CPAP and just stopped breathing in the middle of the night and did not wake up. It happens. When you get a CPAP there is a reason. Take it seriously.

If you are having issues because of physically fixable issues there are surgeries that can help (I had 2 things fixed). Most of the time however its just being fat and physical. Loosing the weight helps and the effect can be tracked in the data the CPAP collects. The doctor can then use the data to adjust then pressure down.

I am speaking from experience. My pressure setting has dropped as I took off the beer gut. This time next year I will likely be able to be done with it.

myrandomcomment··on Ask HN: Are there any 4K “dumb” televisions?
I use an AppleTV 4K on every TV. Media is on a NAS (TrueNAS Mini). I use a Kodi port called MrMC (~7USD in App store) to mount the NAS shares and play all the media (supports NFS and SMB). Run a container (on the NAS) with MySQL that MrMC talks to that syncs status between all instances. Works great. Watch in one room, pause and pick up where I left off in the next room.

https://mrmc.tv/

myrandomcomment··on Demystifying OpenZFS 2.0
https://jrs-s.net/2019/05/02/zfs-sync-async-zil-slog/

ZIL and SLOG are NOT a write cache. They are 100% about not loosing data. A ZIL is part of a zpool where data is written to when the file protocol requires sync. When it is written the sync is cleared. In this case you are sharing the zpool with all its others needs to write and read, so more load on the pool. The data is also in RAM given to the write aggregator process. The RAM is only written latter. If the system crashes before the aggregator writes the data, on restart the data written to the ZIL is read into the aggregator and then is written out to the zpool. By default the ZIL is never read. An SLOG is just a ZIL that is on a separate device from the zpool. So a sync write comes in and is written to the SLOG and not part of the spinning rust zpool so no shared resources with the pool. The sync is marked as cleared when the data is written to the SLOG. The SLOG should be really fast as the goal is to ack the sync quickly. Remember at this point the data is NOT written to the zpool, it’s RAM and the aggregator will write the data out later. Same thing applies on crash. Reboot, SLOG is reviewed for uncleared items, sent to RAM, written to pool.

TLDR - zil/slog are write devices where the data is written when sync is required and almost never read back. Data is alway in RAM cache and written out to the spool from RAM. ZIL/SLOG is not a buffer. Speed of ack sync will be as fast as data can be written to ZIL/SLOG.

myrandomcomment··on An ode to the 10,000 RPM Western Digital (Veloci)Raptor
In the turbo-hybrid era the rules are as I have outlined, you cannot rebuild between races. The current engine is a V6 @ 15000RPM.

https://jalopnik.com/how-formula-ones-amazing-new-hybrid-tur...

In the past the rules were different.

myrandomcomment··on An ode to the 10,000 RPM Western Digital (Veloci)Raptor
Depends on what OS you are running. In my case I am using TrueNAS so it is made for being a NAS and you can just tell it, hey here is a cache, here is a log drive, etc.

If you are talking about local storage for a workstation then I am not sure. Depends on your workflow. If you have a "work on this on the fast stuff, then when I am done I can move it to the spinning rust" then you might want to figure out largest project size for fast vs long term storage of the projects.

Sorry if this is not helpful.

myrandomcomment··on Navy failures destroyed the Bonhomme Richard
At the end of the day the responsibility rest on the Captain. It is their job to see that those under them are well trained, retrained, and reenforced in that training as a daily operational objective. Every good CO I have ever met when taking over a new station will review in detail the training and readiness status of their command as job 1, and not just review on paper but execute all the drills and observe the results. This is fundamental and is taught in detail in command school. Their should be a full set of court-martial for this failure at the command level.
myrandomcomment··on An ode to the 10,000 RPM Western Digital (Veloci)Raptor
100%. This is why when I ordered my home NAS I pick 5400RPM NAS drives (FreeNAS Mini). The WD Red drives in my current system have been spinning since 2014, 4x4TB in a mirrored stripped set for a whopping 8TB of space + 2x120GB Evo write caches (mirrored).

The key to speed is having lots of drives, RAM and SSD write cache.

I plan on getting the new TrueNAS Mini XL this year with 8x14TB.

myrandomcomment··on An ode to the 10,000 RPM Western Digital (Veloci)Raptor
This is 100% not true. The engines are sealed by the FIA and replacing parts of the engine incurs gird penalties. You have a limit of 4 engines a year you can swap without a penalty. In the last 2 races both Lewis and Valtteri took penalties for swapping out the ICE part of the system. When Max had the crash at Silverstone with Lewis, RedBull was not 100% sure of the state of the engine as they are not allowed to disassemble it. They had to use fiber optic cameras to look inside. Even then they got it wrong and Max took a new engine in Turkey.
myrandomcomment··on US Robotics 56k Modems
If only FB had these to a console server in their data centers…

Using a modem for access to OOBM is always a cheap safety net.

myrandomcomment··on The Financial Times’ 404 page
The FT is well worth the cost. I read it cover to cover everyday, which is what I am doing now in the dark (PG&E). The weekend edition is always amazing, with great interviews (lunch with the FT). I still miss David Tang’s column (he died) as well as the humor of Mrs. Moneypenny. Janice Robinson wine column is worth the time if you are into wine.
myrandomcomment··on 130,600 PG&E customers without power as storm drenches Bay Area
So by last count my family and I have been without power 9 times in the last 3 months. Today the lights flickered on and off a number of times but stayed on, well until around 7pm. I am sitting on the patio listing to the rain in darkness (my old friend in PG&E land) again. The rain while hard is not really that bad in comparison to the storms of my childhood on the east coast, yet the power is out. The fact of the matter is the power grid in CA has been mismanaged and neglected for years, with the power companies focused 100% on profit. Power is an essential need. I am generally against government run industry however at this point I very much believe that we would be better served by having PG&E taken over. It should be run as a nonprofit with the goal of insuring power and safety. The leadership that runs it should limited to a group of people that have science and engineering degrees. Also title here needs to be updated…..over 320K without power now.
myrandomcomment··on s/bash/zsh/g
So I read this with a great deal of interest and nodded my head say “yes, that’s true” at most of it. Despite this I just do not want to switch. Heck, first thing I do when I get a new Mac (now that ash is the default)is switch my shell to bash, install homebrew, then tmux, vim, powerline and git pull my dot files. I think maybe I am just old. Get off my lawn!

I am really working on not writing every little thing I want to script as a shell script. The other day I wanted to scan a dir of ~10k image files and move anything that was corrupt to another dir. I wrote it in bash and it worked. Then I was like, okay you should write this in python because you want to run it on 4 different OS. So I did. The code looks so much cleaner but was half as fast as the shell script. Oh well.

myrandomcomment··on Freenet is a peer-to-peer platform for censorship-resistant communication
The problem with the 1st Amendment is that it protects all speech (in general, and if you quote yelling "fire" in a crowded theater you have not read the case law) no matter how stupid that speech is. The issue is that anything else could be a slippery slope to authoritarianism. Drawing that line is hard. Education is the key here however some people seems to be to stupid to be educated.
myrandomcomment··on Serving Netflix Video at 400Gb/s on FreeBSD [pdf]
LACP (which is a control protocol) is a standard feature supported forever on switches. To put it simply both the server and switch see a single port (fake) that has physical ethernet members and a hashing algorithm puts the traffic on that physical ethernet link based on the selected hash. The underlying sw/hw picks which physical link to put the packet on. The input to the hash in picking the link can be src/dst (for all items listed here) MAC, port, IP addr. LACP handles the negotiation of what that hash is between the ends and also hands a link failure "hey man, something broke, we have one less link now). For any given single flow it will hash to the same link. So a for example in a 4x10G lag (also called a port-channel in networking speak) max bandwidth for a single flow would be 10g the max of a single member. In an ideal world the hashing would be perfectly balanced however it is possible to have a set of flows all hash to the same link. Hope that helps.
myrandomcomment··on Consolidation of the VPN industry spells trouble for the consumer
These are "free" VPN apps. You get what you pay for.
myrandomcomment··on Plans for a new city in the American desert
The concept of equality of the sexes it not normal in Japan because of the culture which is focused on tradition and not growth of the culture. The roles assigned and expected behaviors have helped caused the birth rate issue, where a large number of the population never marry and procreate.
myrandomcomment··on Plans for a new city in the American desert
Yes!

遠慮の塊

Literally "hold back / show reserve" and "mass"

English maybe "refrain from taking the last piece".

myrandomcomment··on Plans for a new city in the American desert
I was not trying to support the argument about government but hopefully trying to support to the idea that I might understand enough about the country to argue that behavior is about the culture and not about government policy influence. I apologize if that was not clear. To be honest I have not read many published papers on Japanese government policy and its effect on the behavior of the public so I could be completely wrong. I will say the removal of the trash cans change nothing as far as the need to maintain cleanliness.

There a huge number of examples about the influence of commercial advertising on the effect of the behavior of the Japanese consumer. Just spend sometime asking why the Japanese order KFC for Christmas or why beer is poured with a head targeted at 70/30.

I think that in some cases an outsider looking in that learns the culture might see things that the people on the inside miss as they where not born into the group think of the culture. I know my Japanese friends have at times asked my questions about the American cultural where I did a bit of a double take, forcing me to see things I just sort of went with in the past.

For anyone that has interest in seeing how Japan got where it is this book is really good...but 800+ pages and you better like history and details.

https://www.hup.harvard.edu/catalog.php?isbn=9780674009912

myrandomcomment··on Plans for a new city in the American desert
So I have not seen that, but I am not there right now. I know my friends view on the government failures in rolling out the vaccines are … Shikata ga nai (仕方がない), no matter how privately they rage.

https://en.wikipedia.org/wiki/Shikata_ga_nai

As a westerner I am not sure I could have stood by and put up with the hosting of the Olympics.

myrandomcomment··on Plans for a new city in the American desert
Government policy reflects the culture. I have spent 30% of the last 20 years of my life in Japan, on and off again. One of the highest compliments paid to me by a group of Japanese friends was, “you must not do X again, you are Japanese and know better now.” I.E. as a foreigner I would get a pass, but my understanding of the culture reached a point where they expected better. I was both very highly embarrassed and also quite flattered. It is an amazingly nuanced civilization, sometimes unfortunately to the detriment of progress and equality.

It is not clear to me that shame as a function of policy works in the USA.

myrandomcomment··on Plans for a new city in the American desert
The cleanliness of Tokyo is 100% because of cultural issues, not because the government did anything special. Durning the major 2011 earthquake everything shutdown and you had to walk home. When you went into the “Konbini” (7/11, FamilyMart, Lawsons) in Tokyo there was always a bottle of water left. Why? Because culturally no Japanese would ever buy the last bottle.
myrandomcomment··on Ask HN: How to negotiate stock options?
Yes. 100% of the time. If they do not answer run away.
myrandomcomment··on Apple acquires classical music streaming service Primephonic
Wow 2nd time I have heard someone talk about Maria Callas in 2 days!

So you must listen to her in Aida and La Traviata.

As far as classical one of the most amazing pieces I can recommend is Scheherazade by Korsakov.

https://en.wikipedia.org/wiki/Scheherazade_(Rimsky-Korsakov)

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