Get the most recent info and news about Arch Farm on HackerNoon, where 10k+ technologists publish stories for 4M+ monthly readers.

ARCH FARM OKAYAMA 株式会社アーチファーム 黄ニラ大使 / 岡パク大使 農業を通じて皆様を繋ぐ架け橋になりたい。様々なアーチを描き、夢を創りたい。

Arch Farm

archfarm

The farm and Connecticut Foodshare aim to feed 100,000 families in need this Thanksgiving, kicking off an initiative on Nov. 1.

Avon Farm To Lead State Fight On Food Insecurity

Halloween’s haunted houses and hayrides come and go, but there are a few haunted and historic highways around the D.C. region that lurk year-round.

Cursed and crumbling ghost roads of the DC region

On Thursday night, the Gateway Arch is celebrating its 58th anniversary. Walk to end Alzheimer's happening Oct. 28

Gateway Arch celebrating 58 years with 'An Iconic Evening' Fundraiser tonight

The WWE is coming back to Atlanta in 2024, with a live television broadcast of SmackDown from State Farm Arena. The sports entertainment event is set to take place on Friday night, Jan. 19, according to a schedule of future shows released Friday by WWE.

WWE coming to Atlanta's State Farm Arena in January for live SmackDown show

There are seven National Parks in Missouri with a wide selection of national park sites to experience. This includes the 60th. Named National Park when the Jefferson National Expansion Memorial became Gateway Arch National Park on February 22,

7 GREAT NATIONAL PARKS IN MISSOURI

Saturday’s free Halloween in Mingo party in Aracoma Park from 7-10 p.m. promises to be a “spooktacular night.” With food, music, giveaways, fireworks and a haunted house, the sixth-annual party will be for everyone to enjoy,

Free Halloween party returning to Mingo Junction

The Iranian’s regime organized plan to aid Hamas in its massacre of 1,300 people, including 30 Americans, was front-and-center in the thinking of the dictator who rules over Iran, Supreme Leader ...

Iran's arch-terrorist was architect of Hamas massacre of 1,300 people: report

Lyme's 850th anniversary has been installed in the town. The intricate galvanised steel arch at Queens Gardens marks the day the borough was granted the Royal Charter. Engineering apprentices, Jack Lear and Tom Jones,

New archway celebrates town's historic charter

Farm and ranch insurance is a hybrid form of coverage meant to protect you both personally and commercially. Like a standard homeowners insurance policy, farm insurance covers your home, possessions and personal liability. Beyond that, it also includes ...

Farm Insurance: Coverage, Options and Exclusions

Compression socks offer a variety of styles and rejuvenating benefits. Discover the top 10 options for an enhanced travel experience.

Stay Comfortable With These 10 Best Compression Socks For Travel

The Murray State Racers were part of the 2023 Missouri Valley Conference men’s basketball tip-off day at the Enterprise Center in St. Louis, where State Farm Arch Madness is played every March. With the Racers heading into their second season as members ...

Racers tabbed seventh in preseason poll

When we talk about technology, we often think of robots, supercomputers, data centers or smartphones. But technology also refers to the invention of the first chipped stone tools or the ...

Construction: The Latest Architecture and News

To ensure this doesn’t happen in the future, please enable Javascript and cookies in your browser. Is this happening to you frequently? Please report it on our ...

Dividend History

In 2021, hosted the first-ever awards!! HackerNoon Startup of the Year The goal of this campaign was to give recognition to the hardworking startups who pulled through the pandemic -- growing and thriving (despite all of the challenges). More than 44,000 startups were nominated all across the globe! They were selected from over 4,553 cities, with a total number of * cough * “4 billion” votes. Insane, right? To see who is a winner in each respective city, visit and pick a city. The name at the top of the list is the winner. (Compromised awards are under review. Cities with tie votes will be updated to have two winners!) startups.hackernoon.com The will announce the winners per region in their respective cities. Startups Winners Announcement series Here are the winners in the : Asia region Top Startup Cities in East Asia Seoul The Startup of the Year in is with 377 votes! Seoul dable Central is the Startup of the Year! It came out ahead with 121 votes. UpNow Central Sheung Wan came out as the Startup of the Year in with 154 votes. Votee Sheung Wan Tokyo The Startup of the Year in is with 41 votes! Tokyo ACES Wan Chai The Startup of the Year in is with 54 votes! Wan Chai Zetl Osaka, Japan In , is the winner! Osaka Nanophoton Taiwan came out as the Startup of the Year in ! Tico Taiwan Dongcheng, China In , is declared the Startup of the Year! Dongcheng Waiju Taipei came out as the Startup of the Year in ! Tico Taipei Akasaka In , is the winner! Akasaka WAKUWAKU Chuo In , is declared the Startup of the Year! Chuo GO-NET Ginza came out as the Startup of the Year in ! Netyear Ginza Kanazawa In , is the winner! Kanazawa Granzella Minami-aoyama In , is declared the Startup of the Year! Minami-aoyama Tokyo6 Entertainment Shibuya came out as the Startup of the Year in ! Hupro Japan Shibuya Toranomon In , is the winner! Toranomon Small Worlds Toshima In , is declared the Startup of the Year! Toshima Altplus Guangzhou, China came out as the Startup of the Year in ! Leyaoyao Guangzhou Hong Kong, Hong Kong In , is declared the Startup of the Year! Hong Kong Episode Six Kunming In , is the winner! Kunming Green A Sapporo In , is declared the Startup of the Year! Sapporo Polar Star Space Shirokanedai came out as the Startup of the Year in ! Nupp1 Shirokanedai Wuhan In , is the winner! Wuhan CSICEE Baoan, China In , is declared the Startup of the Year! Baoan Jumper Baoshan, China In , is declared the Startup of the Year! Baoshan Renren Games Chengdu, China came out as the Startup of the Year in ! Ju You Xi Chengdu Fujisawa, Japan In , is the winner! Fujisawa Scohia Pharma Fukuoka, Japan In , is declared the Startup of the Year! Fukuoka Kyulux Haidian, China came out as the Startup of the Year in ! 51vv Haidian Hongkou, China In , is the winner! Hongkou Kidstone Jiading, China In , is declared the Startup of the Year! Jiading IMRobotic Kawasaki, Japan came out as the Startup of the Year in ! QD Laser, Inc. Kawasaki Kyoto, Japan In , is declared the Startup of the Year! Kyoto Hacarus Minato, Japan In , is the winner! Minato Visionary Fun Nagoya, Japan came out as the Startup of the Year in ! Prodrone Nagoya Ningbo, China The winner in is . Ningbo OlymTech Corporation Aomori In , is declared the Startup of the Year! Aomori Forte Japan Bandai-cho In , is the winner. Bandai-cho Delta-Fly Pharm Changchun In , the Startup of the Year is . Changchun Kaidi Animation Fuchu In , is declared the Startup of the Year! Fuchu TMS Fukuoka-shi The winner in is . Fukuoka-shi SkyDisc Fukushima In , the Startup of the Year is . Fukushima Matsuri Technologies Gotanda In , is the winner. Gotanda Basset Hachioji In , is declared the Startup of the Year! Hachioji Adriakaim Harbin The winner in is J . Harbin oining Technology Iwaki In , is the winner. Iwaki Tao Engineering Izumo In , the Startup of the Year is . Izumo PuREC Kagoshima In , is declared the Startup of the Year! Kagoshima Farmers Support Kamakura In , the Startup of the Year is . Kamakura KAYAC Kami-meguro The winner in is . Kami-meguro Buzzreach Kanagawa In , is the winner. Kanagawa LoiLo Kashiwa In , the Startup of the Year is . Kashiwa Intelligent Surfaces Kita In , is declared the Startup of the Year! Kita Ax Robotix Kobe The winner in is . Kobe Coconomi Koriyama In , the Startup of the Year is . Koriyama Tocoton Kumamoto In , is the winner. Kumamoto Bloom Technology Kunitachi In , is declared the Startup of the Year! Kunitachi Trys Liaocheng The winner in is . Liaocheng Jinzheng Animation Minami In , is declared the Startup of the Year! Minami ATLAB Miyazaki In , is the winner. Miyazaki Caster Nagano In , is declared the Startup of the Year! Nagano Precision Forestry Nagaoka The winner in is . Nagaoka Plant Form Nihombashi-hamacho In , the Startup of the Year is . Nihombashi-hamacho Shizen Energy Niigata In , is declared the Startup of the Year! Niigata UniBio Japan Nishi-shinagawa In , is the winner. Nishi-shinagawa Play Heart Okayama In , is the winner! Okayama Arch Farm Okinawa In , is declared the Startup of the Year! Okinawa BlogNinja Otemachi In , the Startup of the Year is . Otemachi beBit, Inc Qingdao Shi In , is the winner! Qingdao Shi Manyoubang Quanzhou In , is declared the Startup of the Year! Quanzhou KungFu Animation Group Roppongi The winner in is . Roppongi Holo-X Saitama In , the Startup of the Year is . Saitama GameTector Sendai In , is the winner! Sendai Sendai Smart Machines Setagaya In , is declared the Startup of the Year! Setagaya Skyestate Shenzhen In , the Startup of the Year is . Shenzhen Aiator Shinjuku In , is declared the Startup of the Year! Shinjuku Scalar Shizuoka In , is the winner! Shizuoka PiPhotonics Sumida The winner in is . Sumida Holotch Tachikawa In , the Startup of the Year is . Tachikawa PlusOne Takamatsu In , is declared the Startup of the Year! Takamatsu Ken Robotec Tokushima In , is the winner! Tokushima DennoKotsu Toyonaka In , the Startup of the Year is . Toyonaka FISH BIOTECH Tsukuba In , is declared the Startup of the Year! Tsukuba WARPSPACE Wakayama In , the Startup of the Year is . Wakayama 4D Sensor Xiangzhou In , is the winner! Xiangzhou ALLiN Edutech Group Xianyang The winner in is . Xianyang TONLY Xiaoshan In , is declared the Startup of the Year! Xiaoshan GONGHUI Yamaguchi In , the Startup of the Year is . Yamaguchi Archis Yangpu The winner in is . Yangpu Tmxmall Yau Tsim Mong In , is the winner! Yau Tsim Mong Airnugget Yeoksamdong In , the Startup of the Year is . Yeoksamdong WizSchool Yichang In , is declared the Startup of the Year! Yichang Hubei Kento Electronic Yokohama In , is the winner! Yokohama Next Innovation Yubei In , the Startup of the Year is . Yubei Ophiux Network Yueqing The winner in is . Yueqing Yueqing Easythink Media Zhuhai In , is the winner! Zhuhai Aijuba Hongo In , the Startup of the Year is . Hongo Smile Robotics, Inc Admiralty In , is declared the Startup of the Year! Admiralty BUNCH Southern In , the Startup of the Year is . Southern Retykle Yongdungpo In , is the winner! Yongdungpo Push News Taichung In , is declared the Startup of the Year! Taichung Wondercise Cyberport, Hong Kong In , the Startup of the Year is . Cyberport Animoca Brands Hefei, China In , is the winner! Hefei Tsinglink New Territories, Hong Kong The winner in is . New Territories, Hong Kong Zeek Dezhou In , the Startup of the Year is . Dezhou Dezhou Baji Kitakyushu In , is declared the Startup of the Year! Kitakyushu Reif Seongnam In , is the winner! Seongnam EOFlow Yanshi In , the Startup of the Year is . Yanshi CASI Vision Top Startup Cities in South Asia Hyderabad, India The Startup of the Year in is with 962 votes Hyderabad Quixy Lahore, Pakistan is the Startup of the Year! It came out ahead with 186 votes. SmartWindows Lahore Bangalore, India When it comes to , is the Startup of the Year with 210 votes! Bangalore vBridge Hub Pune, India couldn’t be beaten for Startup of the Year in , it won with 129 votes! InfraCloud Pune Jaipur, India The Startup of the Year in is with 166 votes Jaipur Emizen Tech Lucknow, India is the Startup of the Year! It came out ahead with 279 votes. Keeros Superfoods Lucknow Noida, India came out as the Startup of the Year in with 156 votes! Bagisto Noida Mumbai, India When it comes to , is the Startup of the Year with 96 votes! Mumbai Sequretek Sylhet couldn’t be beaten for Startup of the Year in , it won with 122 votes! DataXpie Sylhet Mylapore, India In , is the winner! Mylapore Yalimart Goa, India In , the Startup of the Year is Goa Filter Coffee Delhi, India In , is declared the Startup of the Year! Delhi EkAnek Networks Karachi, Pakistan The winner in is Karachi Bykea Ahmedabad, India In , is the winner Ahmedabad MageComp Dhaka, Bangladesh The winner in is Dhaka SOLshare Islamabad, Pakistan In Islamabad, is declared the Startup of the Year! TAG Gurgaon, India In , the Startup of the Year is Gurgaon ixigo Bengaluru, India In , is the winner! Bengaluru Prakshep Private Limited Haryana, India couldn’t be beaten for Startup of the Year in ! Footprints Childcare Haryana Kolkata, India In , is the winner! Kolkata Wow! Momo New Delhi, India In , is declared the Startup of the Year! New Delhi Rusk Media Indore, India The winner in is Indore Chattar Patar Kormangala In , is the winner Kormangala Sanctum Technologies Ghaziabad came out as the Startup of the Year in Craftfurnish.com Ghaziabad! Mohali In , the Startup of the Year is Mohali DataKund Mysore The Startup of the Year in is Mysore Excelsoft Karnal came out as the Startup of the Year in ! Dunar Karnal Kolhapur In , is the winner! Kolhapur Zanvar Group Patiya In , the Startup of the Year is Patiya Kloud Project Kathmandu In , is declared the Startup of the Year! Kathmandu Vairav Technology Bangalore City, India In is the winner! Bangalore City, PagarBook Ernakulam The winner in is Ernakulam Epixel Solutions Colombo, Sri Lanka couldn’t be beaten for Startup in the Year in MAs Foods Colombo Andheri, India When it comes to , is the Startup of the Year! Andheri DoorMint Kanpur, India came out as the Startup of the Year in ! ServiceWalaa Kanpur Faisalabad In , is the winner! Faisalabad DigiKhata Nasik The Startup of the Year in is Nasik Sahyadri Farms Patna came out as the Startup of the Year in ! Asvin Tech Patna Chennai, India In , is the winner! Chennai Agnikul Cosmos Faridabad, India In , is declared the Startup of the Year! Faridabad UClean Panjim, India The winner in is Panjim TempoGO Ranchi, India In , is the winner Ranchi Osam Dairy Surat, India In , is declared the Startup of the Year! Surat Wishbook Thane, India In , is the winner! Thane Delight Foods Trivandrum, India came out as the Startup of the Year in ! GenRobotic Trivandrum Vijayawada, India In , the Startup of the Year is Vijayawada Eruvaka Technologies Visakhapatnam, India In , Ltd is declared the Startup of the Year! Visakhapatnam Greenline Labs Pvt Ahmadabad In , is the winner! Ahmadabad KiwiQA Services Bandra came out as the Startup of the Year in ! Car Club Bandra Bombay In , is the winner! Bombay Locobuddy Mobile Technology (Sportobuddy) Cochin In , the Startup of the Year is Cochin Tuttifrutti Interactive Gandhinagar In , is declared the Startup of the Year! Gandhinagar Kroop AI Guwahati In , the Startup of the Year is Guwahati GNRC Hospitals Jamshedpur In , is declared the Startup of the Year! Jamshedpur Intelliber Kabul The winner in is Kabul Miracle Shop (Vocinno Technology) Karur In , is the winner Karur Karur Vysya Bank Kochi The winner in is Kochi BestDoc Kozhikode In , is declared the Startup of the Year! Kozhikode OfficeKit HR Ludhiana In , the Startup of the Year is Ludhiana Trendy Beat Network Madhapur In , is the winner! Madhapur Head Digital Works Mangalore When it comes to , is the Startup of the Year Mangalore Hangyo Nagpur came out as the Startup of the Year in ! UPrudence Agro Nagpur Rawalpindi The Startup of the Year in is Rawalpindi Pro Options Marketing Rishikesh came out as the Startup of the Year in ! Descatuk Rishikesh Secunderabad couldn’t be beaten for Startup of the Year in Prakriti Biosystems Engineering Secunderabad Tirupur In , is the winner! Tirupur Tubeknit Fashions Udupi The winner in is Udupi Krishitantra Top Startup Cities in Southeast Asia Singapore, Singapore The Startup of the Year in is with 6556 votes! Singapore Cake DeFi Hanoi, Vietnam is the Startup of the Year! It came out ahead with 683 votes. DeFi For You Hanoi Kuala Lumpur, Malaysia came out as the Startup of the Year in with 109 votes! Trambellir Kuala Lumpur Pasig, Philippines When it comes to , . is the Startup of the Year with 110 votes! Pasig Quickreach Inc Bangkok, Thailand couldn’t be beaten for Startup in the Year in , it won with 60 votes! Perception Codes Bangkok Johor Bahru In , the Startup of the Year is . Johor Bahru AGR1 Bandung, Indonesia In , is declared the Startup of the Year! Bandung Prosa Portugal The winner in is . Portugal SCEMAI Tangerang, Indonesia In , is the winner Tangerang Yummy Corp Jakarta, Indonesia In , is the winner! Jakarta Tokocrypto Dki Jakarta, Indonesia In , is declared the Startup of the Year! Dki Jakarta Limakilo Bangkok Metropolis In , is the winner! Bangkok Meticuly Medan The winner in is ! Medan DIKA Manila, Philippines In , is declared the Startup of the Year! Manila PawnHero Phnom Penh, Cambodia In , the Startup of the Year is Phnom Penh vKirirom Bali In , is the winner! Bali Radius App Penang When it comes to , is the Startup of the Year Penang EasyParcel Surabaya came out as the Startup of the Year in ! Super Surabaya Setiabudi, Indonesia The Startup of the Year in is Setiabudi Chilibeli Cebu City came out as the Startup of the Year in MiCab Cebu City! Jawa couldn’t be beaten for Startup in the Year in DAUR Jawa Ho Chi Minh City, Vietnam In , is the winner! Ho Chi Minh City Pharmacity Selangor, Malaysia is the Startup of the Year! BabyDash Selangor Jakarta Pusat, Indonesia In , is the winner! Jakarta Pusat StickEarn Semarang When it comes to , is the Startup of the Year! Semarang Food Bear Petaling Jaya, Malaysia The winner in is . Petaling Jaya Deemples Kebayoran Baru, Indonesia couldn’t be beaten for Startup in the Year in ! Yogrt Kebayoran Baru Kuningan The winner in is . Kuningan Prinzio Bukit Merah came out as the Startup of the Year in ! DC Alliance Bukit Merah Huai Khwang In , the Startup of the Year is . Huai Khwang AppMan Co.,Ltd Kuta In , is declared the Startup of the Year! Kuta Gringgo Mandaluyong came out ahead as the Startup of the Year! Work Inspire Mandaluyong Midview City In , is the winner! Midview City BioMers Phuket The Startup of the Year in is ! Phuket Sapahn Yangon, Myanmar The winner in is . Yangon Wave Money Denpasar When it comes to , is the Startup of the Year! Denpasar Revasi Nakhon Ratchasima, Thailand The winner in is . Nakhon Ratchasima Siam Lottery co., Ltd Taguig, Philippines In , is the winner! Taguig PayMongo Bogor came out as the Startup of the Year in ! TIRANYX Bogor Senai, Malaysia won as the Startup of the Year. Nutrition Technologies Senai Bekasi Kota couldn’t be beaten for Startup in the Year in ! 8villages Bekasi Kota Top Startup Cities in Middle East Tel Aviv, Israel The Startup of the Year in is with 1,065 votes! Tel Aviv hyro Beirut, Lebanon is the Startup of the Year! It came out ahead with 1,276 votes. Hovi Digital Lab Beirut Riyadh, Saudi Arabia With 350 votes, came out as the Startup of the Year in ! Flicron Riyadh Tel Aviv-yafo, Israel When it comes to , is the Startup of the Year with 167 votes! Tel Aviv-yafo Cymbio Haifa, Israel couldn’t be beaten for Startup in the Year in , it won with 183 votes! Pico Haifa Amman, Jordan In , with 141 votes, is the winner! Amman Edexy Dubai, United Arab Emirates In , the Startup of the Year is with 74 votes. Dubai Ziina Doha, Qatar In , is declared the Startup of the Year! Doha SkipCash Tehran, Iran The winner in is . BeyondBoard AR Tehran Jerusalem, Israel In , is the winner! Jerusalem SolidBlock Rishon Le Zion The Startup of the Year in is ! Rishon Le Zion Passparto Ness Ziona, Israel is the Startup of the Year! Soapy Ness Ziona Kuwait, Kuwait came out as the Startup of the Year in ! Brapper Shop Kuwait Manama, Bahrain couldn’t be beaten for Startup in the Year in ! Doctori Manama Lod, Israel is the winner in ! Phinergy Lod Agudat Israel, Israel When it comes to is the Startup of the Year with [vote ] votes! Agudat Israel, Aqaurius Engines Beersheba, Israel In , the Startup of the Year is . Beersheba Visual Estate Ltd Giv'atayim, Israel In , is declared the Startup of the Year! Giv'atayim WSC Sports Modi'in, Israel The winner in is . Modi'in Loginno Nazareth, Israel In , is the winner! Nazareth AR Guide In Medical Ramat Gan, Israel The Startup of the Year in is . Ramat Gan Datos Health Baghdad When it comes to , is the Startup of the Year! Baghdad Mishwar Khobar In , the Startup of the Year is . Khobar Garage Misgav couldn’t be beaten for Startup in the Year in ! Eden Shield Misgav Sharjah came out as the Startup of the Year in ! Bookends Sharjah Affula In , the Startup of the Year is . Affula eMotion Technologies Bene Beraq, Israel In , is the winner Bene Beraq Reflectiz Caesarea, Israel In , the Startup of the Year is . Caesarea CardiacSense Dubayy In , is declared the Startup of the Year! Dubayy North Ladder Muscat couldn’t be beaten for Startup in the Year in ! iLab Marine Muscat Tirat Carmel In , the Startup of the Year is . Tirat Carmel PassCall Advanced Technologies Hod Hasharon, Israel The winner in is . Hod Hasharon Idomoo Holon, Israel came out ahead as the Startup of the Year! OptimalPlus Holon Jeddah, Saudi Arabia When it comes to , is the Startup of the Year! Jeddah Arabian Combustion Technologies Ramat Hasharon, Israel is the Startup of the Year! Lumen Ramat Hasharon Al Khobar came out as the Startup of the Year in ! Swyft Al Khobar Bet Shemesh In , is the winner! Bet Shemesh Degania Medical Binyamina When it comes to , is the Startup of the Year! Binyamina OncoHost Makkah In , the Startup of the Year is Makkah Scimagine Or Akiva Last but not least, couldn’t be beaten for Startup in the Year in the city of ! WMT Or Akiva More Information: If you’re a winner, please answer ! If you’re a reader, participant, just a curious individual, consider answering one of our interviews . this interview here Read the FAQs about or . Startups here here To see all of the winners you may visit , pick any city and view the name that appears at the top. this site If you’re interested in partnering with us, we invite you to look through some of these or reach out to our business department. unique sponsorship options Perhaps creating your very own tickles your fancy or maybe you have a whole new idea for how we can partner! writing contest Thank you to all of our sponsors! We truly appreciate your contribution to the tech world and thus the future! The Startups Awards are sponsored by: , , , , , , , , , , Blockster Brex FreeCodeCamp LaunchDarkly Coil Udacity Udemy Vercel Asia Pacific Transgender Network Bybit Everscale Network The post was written by Kushal Tamrakar and Valerie Ejegi, edited by Hang Ngo. If you have any questions or concerns or would like to report a discrepancy please email ellen@hackernoon.com.

Meet the Winners of Startups in Asia

1811 Dictionary in the Vulgar Tongue: Section C

PS: Proceed with caution, this can be dangerous 😃 Me : Ever wondered if you are working on a project and desire that you could mirror your server to the . What if your coworker wants to consume your API or the product manager wants to have a look at a W.I.P feature? development internet You : I have a staging server sitting idle. All I have to do is to push the code. Or even better, I can use free services like Surge (surge.sh). Me : Consider your remote friend is also programming simultaneously. You : Oh that may not go so well… Me : Fret not my friend, here I come for the rescue! When you run a dev server, the application binds itself to a local port, which can be say 3000 for a Rails project. The challenge is to make the people on internet able to access your port. But wait! Your ISP most likely has not granted you a static IP address and also blocked all the incoming ports. What to do now? A typical developer has used AWS at least once in his life. Now you have a machine on the cloud with a dedicated public IP. Anyone on the web can access your server. YOU have access to the server. IF you can mirror your local port to the server, the server can be a gateway to your machine. Technically, if you forward your port to the server, it can forward proxy it to the web. TL;DR — Mirror Your “localhost:8000” Run a Python file server on port 8000 cd Desktoppython -m SimpleHTTPServer Open localhost:8000. You can see the the directory content. Create a new EC2 Instance. Nano configuration is more than enough Note the public IP address of newly created instance. For me, it was 18.208.189.50 SSH chmod 400 your-key.pemssh -i your-key.pem ubuntu@18.208.189.50 Install nginx server sudo apt-get updatesudo apt-get install nginxsudo service nginx start Open the default configuration sudo nano /etc/nginx/sites-available/default Browse through “ block. Comment out the file access and type: location” # try_files $uri $uri/ =404;proxy_pass http://127.0.0.1:8000; Save the file and restart nginx server sudo service nginx restart Exit the instance exit Forward your local port to server ssh -i your-key.pem -R 8000:localhost:8000 ubuntu@18.208.189.50 If everything goes right, open the browser and navigate to http://18.208.189.50 Voila! Applications Local Rails API exposed for remote team to consume Thanks to for sample Rails setup IBM Cloud git clone gem install bundlerbundler installrails server## Repeat the above steps (port forwarding) but with port 3000 https://github.com/IBM-Cloud/ruby-rails-helloworld React project can be accessed real time to showcase product Thanks to for an elegant example Andrew Farmer git clone cd calculatornpm installnpm start## Repeat the above steps (port forwarding) but with port 3000 https://github.com/ahfarmer/calculator On the Internet Large files transfer over the internet cd Desktoppython -m SimpleHTTPServer## Repeat the above steps (port forwarding) Please clap if you find this interesting 😄 Some of you might be thinking why did I warn at the beginning, that’s because there was a time when I was developing a Rails app. And I used to have my local database filled with hilarious seed data. One fine day I write this blog and apply this technique to test and iterate project with my client. Unknowingly, I was exposing my dev environment with my client. Anyways, he pointed it out and he had a good laugh. Moreover we still use the same data in staging 😅.

Port Forwarding Your Local Development Server To The World Wide Web

The — Cassandra Query language gives an almost SQL type interface to Apache Cassandra. I have found many times, that many who use this, do not know about some important points of Cassandra that makes it different from SQL databases like Postgres. Same is the case for the operations team, there are some aspects related to storage, GC settings, that many are not aware of. I am not an expert in Cassandra internals and don’t aspire to be if I can avoid it. This is mostly a note to myself, and something which I can ask others to refer to instead of repeating over email a gazillion times. There are a lot of other parts like repair etc which I have left out. The intention here is to make this as short as possible, but if you feel somethings are to be added, please comment. CQL Cassandra has Tune-able Consistency — not just eventual consistency Many considering Cassandra as a replacement for SQL databases like Postgres, MySQL or Oracle, shy away from thinking that eventual consistency of NoSQL does not meet their requirement. In Cassandra, however, consistency is configurable. This means that with some write and read speed sacrifice, you can have strong consistency as well as high availability. Cassandra can be used for small data as well as big data; depending on your use case you can tune the consistency per key-space or even per-operation. Cassandra values Availability and Partitioning tolerance (AP). Tradeoffs between consistency and latency are tunable in Cassandra. You can get strong consistency with Cassandra (with an increased latency). https://wiki.apache.org/cassandra/ArchitectureOverview At this point, it may be a good idea to have a short recap of as there is a lot of confusion translating the theoretical surmise to the practical world. CAP theorem In 2000, Dr. Eric Brewer gave a keynote at the in which he laid out his famous CAP Theorem: Proceedings of the Annual ACM Symposium on Principles of Distributed Computing a shared-data system can have at most two of the three following properties: C onsistency, A vailability, and tolerance to network P artitions. This applies to any distributed database, not just Cassandra. So Cassandra can provide C and A not P ? Is it a big problem? Short answer — It is not. Skip the rest of the section if you are in a hurry. Long answer read on. Here is the excerpt from Cassandra docs. (DataStax’s docs) … You can tune Cassandra’s consistency level per-operation, or set it globally for a cluster or datacenter. You can vary the consistency for individual read or write operations so that the data returned is more or less consistent, as required by the client application. This allows you to make Cassandra act more like a CP (consistent and partition tolerant) or AP (highly available and partition tolerant) system according to the CAP theorem, depending on the application requirements. It is not possible to “tune” Cassandra into a completely CA system. See for a more detailed discussion. - Note: You Can’t Sacrifice Partition Tolerance https://docs.datastax.com/en/cassandra/3.0/cassandra/dml/dmlAboutDataConsistency.html Here is an excerpt from the article linked in the DataStax’ s Cassandra documentation page. Of the CAP theorem’s Consistency, Availability, and Partition Tolerance, Instead of CAP, you should think about your availability in terms of (percent of requests answered successfully) and (percent of required data actually included in the responses) and which of these two your system will sacrifice when failures happen. - Partition Tolerance is mandatory in distributed systems. You cannot not choose it. yield harvest https://codahale.com/you-cant-sacrifice-partition-tolerance/ What the above article explains in depth is that Availability is tied to Network Partitioning or Partition Tolerance. Worst case scenario network partitions are quite rare inside a Data Center network. Also, network partitions cannot be prevented from happening. It is ever present, though mostly transient and intermittent. The risk of network partitioning across many nodes in a cluster so as to disrupt Availability for a multi-node cluster is very less. So with Cassandra, you can have as good a C and A system as practically possible (you cannot choose Partition tolerance, shit happens in networks) The correct way to think about CAP is that in case of a network partition (a rare occurrence) one needs to choose between availability and partition tolerance. In any networked shared-data systems partition tolerance is a must. Network partitions and dropped messages are a fact of life and must be handled appropriatel — Please read article to get a better perspective of CAP this Source the intuition behind CAP https://dzone.com/articles/understanding-the-cap-theorem Give Importance to modeling the Partition key If there is only one thing that you should read, maybe it is the link below _Patrick is regarded as one of the foremost experts of Apache Cassandra and data modeling techniques. As the Chief…_www.datastax.com The most important thing to know in Cassandra data modeling: The primary key What is the Partition Key ? It is the first part of the Primary Key or the Primary key itself if the Primary key is not composite Why is this most important part? To have a balanced write of data to multiple Cassandra nodes in the cluster and subsequently balanced reads of the data. When data is inserted into the cluster, the first step is to apply a hash function to the partition key. The output is used to determine what node (and replicas) will get the data.- https://docs.datastax.com/en/archived/cassandra/3.x/cassandra/architecture/archPartitionerM3P.html Here are two main goals to consider for modelling the data _Learn more about Apache Cassandra and data modeling READ MORE DS:220 COURSE Picking the right data model is the hardest…_www.datastax.com Basic Rules of Cassandra Data Modeling 1. Spread data evenly around the cluster — Model Partition Key 2. Minimize the number of partitions read -Model Partition Key and Clustering keys I have written here the which gives us this sort of . minimum internals of Cassandra two conflicting guidelines, which we need to balance to use it effectively An Example Let us take an example. Below is an initial modeling of the table where the I have illustrated a slightly complex example so as to show the flexibility in data types present in Cassandra, and all the aspects to consider when modeling the key. The actual cell can be a telecom cell with multiple coverages by different operators or different technologies. The example I give here is a bit contrived and for illustration only. data is some events (say political rallies, speeches etc) that has occurred in a particular location, centered over latitude, longitude and say having a radius of 250 meters. Each location has an influential candidate of that area. Sometimes the same area can have multiple influential candidates. Note that the partition key is chosen assuming that events are distributed evenly across a city, the key will distribute the data from multiple locations evenly across available Cassandra nodes. The partition query should be modelled for efficient retrieval of the data application needs The modelling of Tables and thereby the partition key is primarily with consideration of efficient data retrieval. Assume that we need to The queries will be a set of statements like query all events happening in a location by a Candidate for a time interval. and time_key >= (‘06:00:00.000000000’, ‘06:00:00.000000000’) and time_key < (‘07:30:00.000000000’, ‘07:30:00.000000000’) select * from demo_table where bin_cell_key = (1234, 222, ‘Candidate1’) select * from demo_table where bin_cell_key = (1234, 223, ‘Candidate1’) .. . For this, we need to model . Note — Data duplication is okay in NoSQL data modelling and to have the same effect of JOINs this is needed. Some helper tables to get the bin_cell_key But to compose this bin_cell_key we need to know first which Candidates are there in which locations helper tables create table cell_bin (cell text, bin tuple<int,int>, PRIMARY KEY (cell,bin)); Example CQL: select * from cell_bin where cell=’Candidate1’; cell | bin — — — — -+ — — — — —-Candidate1| Candidate1| ( (1234, 222) 1234, 223) And similarly for the other way round create table bin_cell (bin tuple<int,int>, cell text, PRIMARY KEY (bin,cell)); Example CQL: cqlsh:demo_keyspace> bin | cell — — — — -+ — — — —— - (1234, 222) | (1234, 222) | select * from bin_cell where bin = (1234, 222); Candidate1 Candidate2 We can stop here. But if you are curious -read on. For this, we need to Why ? because in case of a composite partition key all the elements need to be specified in the query. What if we want to aggregate all events that have taken place in a region irrespective of the Candidate. split the cell out. select * from demo_table where bin = (1234,222) and year=2017 and month=12 and day=1; The table for below which also adds time to the partition key so that data from different days are distributed across available nodes are given below. create table demo_table( year int,month int,day int, bin tuple<double,double>, cell text, time_key tuple<timestamp,timestamp>,event text, (**(bin,year,month,day),**cell,time_key)); PRIMARY KEY Test and measure your reads & write via nodetool cfstats How do we know if our data model is distributing writes across nodes? How do we know if the write latency and read latency is distributed across nodes and if it is linearly scale able in proportional to the nodes added? The answer to all of this via node tool cfstats command _Provides statistics about tables._docs.datastax.com nodetool cfstats You need to run long runs with write and then read operations using multiple nodes and everyday update a table like one below based on the output from cfstats. Soon you will know if your write and read are balanced. Actually adding more nodes should also decrease your read time linearly. This is really beautiful. Do not use ALLOW FILTERING and IN Clause in CQL indiscriminately If you feel that there is no way out; then please read the section above. Most probably your table modelling has to be refactored. When your query is rejected by Cassandra because it needs filtering, you should resist the urge to just add ALLOW FILTERING to it. You should think about your data, your model and what you are trying to do. - https://www.datastax.com/dev/blog/allow-filtering-explained-2 Or for that matter IF clause — Light Weight Transactions The new versions of Cassandra support light-weight transactions. In CQL this is done via the IF clause. . Insert into table IF NOT EXISTS should not be used casually, as the latency of operations increases fourfold due to the due to the round-trips necessary between the CAS coordinators. - Lightweight transactions https://docs.datastax.com/en/cql/3.3/cql/cql_using/useInsertLWT.html There is also a usage restriction of using LightWeight transactions (IF EXISTS, IF NOT EXISTS) in Cassandra. If an INSERT/UPDATE/DELETE statement uses it then in that flow all such statements should use it; as the statements are ordered by the timestamps; and for LWT to execute the Paxos algorithm will take some time; which may cause statements without it to be executed/inserted with a timestamp earlier than the later statements in the code; Explained here better https://jira.apache.org/jira/browse/CASSANDRA-14304 If you want to maintain linearizable consistency you need to also issue the DELETE as a LWT. If you don’t there is no guarantee that the INSERT will come before the DELETE. I believe this is still the case when you have only 1 node, but regardless even if you didn’t have one node you’d still want to issue the DELETE with IF EXISTS in an actual cluster otherwise you’ll be even more prone to this problem. Do not use Materialized Views — or use carefully Materialized View was marked as experimental after they released it for production as there can be an inconsistency between the base table and view [1] . https://www.mail-archive.com/dev@cassandra.apache.org/msg11516.html [2] https://docs.datastax.com/en/dse/6.0/cql/cql/cql_using/understandMV.html#understandMV__baseViewInconsistency (not sure if this is updated) https://docs.datastax.com/en/dse/6.0/cql/cql/cql_using/bestPracticesMV.html Write to base tables with materialized views using consistency levels greater than ONE Run repair on both the base table and the view whenever a node is removed, replaced, down //SOP We recommend against creating a materialized view with filtering on a non-primary key column (has lot more details) https://www.instaclustr.com/apache-cassandra-materialized-view-instaclustr-support/ Under normal conditions, data is quickly made available in the views. Use the _ViewWriteMetrics_ metric to track the view propagation time. We recommend that you explicitly test the correctness of materialized views for your application scenarios, including under load (do not assume correctness). Be aware of the JVM GC Suck-age as JVM Heap Increases Cassandra runs on the JVM and relies on the OS page cache for improving performance. . Cassandra performance should increase by adding more low powered nodes.We have run our long runs for about 2 weeks with load on 2 GB JVM heap, and Cassandra had never once gone down. There is no need to throw huge amounts of RAM at Cassandra JVM GC suckage is directly proportional to the JVM heap. This is true for any Java process and also for Cassandra source- https://www.slideshare.net/mattdennis/cassandra-antipatterns Some illuminating quotes Many users new to Cassandra are tempted to turn up Java heap size too high, which consumes the majority of the underlying system’s RAM. In most cases, increasing the Java heap size is actually detrimental for these reasons: . 1 In most cases, the capability of Java to gracefully handle garbage collection above 8GB quickly diminishes. 2. Modern operating systems maintain the OS page cache for frequently accessed data and are very good at keeping this data in memory, but can be prevented from doing its job by an elevated Java heap size. If you have more than 2GB of system memory, which is typical, keep the size of the Java heap relatively small to allow more memory for the page cache . _Consider tuning Java resources in the event of a performance degradation or high memory consumption._docs.datastax.com Tuning Java resources A database like has ported the Cassandra design on to C++ so as to avoid the GC pauses and other such problems related to JVM. But as long as you keep the JVM heap around 8 GB things should be fine. Scylla DB An update here- While I was working with Cassandra G1GC was not deemed stable enough to be used. Now DataStax version of Cassandra used G1GC. G1GC can handle larger heaps; however, Cassandra can use RAM heavily for page caches, filters etc, so all the above still makes sense. Limit JVM heap to the minimum you need and leave the rest of the memory for Cassandra process. Cassandra does not like SAN/Shared Storage Cassandra is designed for the low fetch times of spinning disks by only appending data to the end for writes and minimize disk seek time during read via application selected partition keys and thereby spreading reads across multiple nodes — Regarding storage a good slide to go through https://www.slideshare.net/johnny15676/why-does-my-choiceofstorage-matterwithcassandra source- https://www.slideshare.net/johnny15676/why-does-my-choiceofstorage-matterwithcassandra Customer/User — “We have an awesome SAN and would like to use it for Cassandra.”DataStax — “We don’t recommend shared storage for Cassandra.”Customer/User — “Why not.”DataStax — “Two reasons really. One — performance suffers. Two — shared storage introduces a single point of failure into the architecture.”Customer/User — “Our SAN is awesome and has never had any down time and can preform a kagillion IOPS. So why exactly shouldn’t we use shared storage.” https://www.datastax.com/dev/blog/impact-of-shared-storage-on-apache-cassandra Horizontal Scale-ability -Transparent Sharding vs Application Level Sharding Database sharding is a way of horizontally scaling database. Application level sharding means that the logic of partitioning data across multiple nodes is done at the application level. That is based on some key- classic example — East Coast vs West Coast or ; your DB write code will select a Database to connect, write and read. The problem is that the complexity of application-level sharding quickly gets complex and it is not a good way to scale. Cassandra and most NoSQL databases do sharding transparently (as you have seen via the partition key). This is a pretty big advantage, as without this horizontal scaling is a hard problem. similar Open-Source and Commercial As of the time of writing this, relations between Apache Foundation and Datastax- which was one of the largest contributors to Cassandra ? have soured. There is a commercial version of Cassandra — Datastax Enterprise Edition and open source version is the Apache Cassandra. The Java driver of Cassandra has two versions, the open source and DSE provided, and you cannot use a commercial driver with open source Cassandra. For other languages like Go the driver is open source. You may also find the following post of value https://hackernoon.com/apache-cassandra-the-minimum-internals-you-need-to-know-89724603abb2

Stories, News & Mentions about ARCHFARM

Archfarm’s Stories on HackerNoon

Archfarm's News & Mentions