投稿時間:2022-08-18 20:40:16 RSSフィード2022-08-18 20:00 分まとめ(47件)

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IT	ITmedia 総合記事一覧	[ITmedia News] 約16万件の商品・サービスの口コミデータ、NIIが無償提供　自然言語処理などの研究向けに	https://www.itmedia.co.jp/news/articles/2208/18/news179.html	無償提供	2022-08-18 19:21:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 丸ビル・新丸ビル、23年春にかけてリニューアル実施へ	https://www.itmedia.co.jp/business/articles/2208/18/news177.html	itmedia	2022-08-18 19:09:00
python	Pythonタグが付けられた新着投稿 - Qiita	Python3 エンジニア認定データ分析試験で求められる知識を整理する	https://qiita.com/nvtomo1029/items/bc61b9c1fb0942e9441a	過程	2022-08-18 19:43:50
js	JavaScriptタグが付けられた新着投稿 - Qiita	役に立つ覚書	https://qiita.com/UCLab1421/items/364c38e9b0ac246e347f	riesmapelemgtelemdateyea	2022-08-18 19:12:30
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【Rails】ヘッダーのドロップダウンをレスポンシブ対応	https://qiita.com/vaza__ta/items/4ea6cb0ba8afaa5f2efe	overflowxauto	2022-08-18 19:11:17
AWS	AWSタグが付けられた新着投稿 - Qiita	CodeCommitのgit clone時にfatal: repository <リポジトリURL> not foundが出た場合の対処法	https://qiita.com/memorandum/items/fe368516bc81efd463c7	urlgtclon	2022-08-18 19:44:18
Docker	dockerタグが付けられた新着投稿 - Qiita	Vagrant と docker-compose	https://qiita.com/alt500/items/af1a12bda349c69d1c85	virtualboxamazonecdocker	2022-08-18 19:07:37
Git	Gitタグが付けられた新着投稿 - Qiita	CodeCommitのgit clone時にfatal: repository <リポジトリURL> not foundが出た場合の対処法	https://qiita.com/memorandum/items/fe368516bc81efd463c7	urlgtclon	2022-08-18 19:44:18
Git	Gitタグが付けられた新着投稿 - Qiita	[随時更新]Gitコマンドチートシート	https://qiita.com/mii_net_qiita/items/528c4d95198a44234379	applem	2022-08-18 19:25:38
Ruby	Railsタグが付けられた新着投稿 - Qiita	【Rails】ヘッダーのドロップダウンをレスポンシブ対応	https://qiita.com/vaza__ta/items/4ea6cb0ba8afaa5f2efe	overflowxauto	2022-08-18 19:11:17
技術ブログ	Developers.IO	「AWS環境のセキュリティどうやってチェックしてる？」というタイトルで「セキュリティエンジニア勉強会​～社内のセキュリティ環境ってどうしてる！？知見・課題を共有​～」に登壇しました #テックストリート	https://dev.classmethod.jp/articles/how2security-check-on-aws/		2022-08-18 10:24:04
海外TECH	MakeUseOf	Windows 11 Update Leaked, Android 13 Hits Pixel Phones, Productive Ways to Use Your Phone, and Podcast Mixing Desks	https://www.makeuseof.com/windows-11-update-leaked-android-13-pixel-productive-smartphone-use-podcast-mixing-desks/	Windows Update Leaked Android Hits Pixel Phones Productive Ways to Use Your Phone and Podcast Mixing DesksThis week s podcast shows you how to use your phone in a more productive way and discusses some of the best mixing desks for podcasters	2022-08-18 10:30:14
海外TECH	MakeUseOf	How to Convert M4A Files to MP3 on Your iPhone	https://www.makeuseof.com/how-to-convert-m4a-to-mp3-iphone/	convert	2022-08-18 10:30:14
海外TECH	DEV Community	EBC - Everything but code	https://dev.to/huddlespith/ebc-everything-but-code-3m32	EBC Everything but code Welcome to Everything But Code This is going to be a series of posts covering what I feel are the most important useful topics in programming that aren t writing the actual code But surely the code is the most important thing True Having the slickest workflow means nothing if the code you end up writing doesn t work But I think that having a good setup can help you to write code more efficiently and accurately which will ultimately lead to better code Ok but I already have a setup why should I read this It is easy to get comfortable with a particular way of coding and you may think it won t be worth the time adjusting to a new system especially if you don t know for certain that it will lead to an improvement I would encourage you to give any concepts you read here a long think before trying so that you spend that precious time on solutions you do feel could improve your coding  Yeah but I know I have the best setup I spent ages researching it years ago You are probably right that your setup was the best for you years ago But in the four following years not only will new systems and technologies have been created but you will also have changed I feel that it is worth having a look at your setup every so often to ensure it is still the best for you that it possibly can Hold up I m a complete newbie can we slow down Absolutely Several of the posts in this series may be discussing things that you have never heard of before Don t expect yourself to read through everything in one weekend and come out with the best setup ever take your time and slowly introduce things to your workflow over time This will allow you to adjust much more easily to each thing you introduce and give you the time and space to make sure you understand how each new introduction works with the systems you already have in place	2022-08-18 10:32:00
海外TECH	DEV Community	5 enhancements that will boost your Node.js app	https://dev.to/chegerose/5-enhancements-that-will-boost-your-nodejs-app-3pj5	enhancements that will boost your Node js appDuring your application workflows there are many aspects needed to ensure the code you write executes with efficiency at its best Consider you have built a Node js application Upon production deployment you realize your application is getting a lot slower and slower Well at this point the question running in your mind is what can you do to speed up and run your Node js app faster In this article we will discuss tips and tools you need to massively scale and speed up the Node js applications An overviewNode js is an open source cross platform runtime environment for JavaScript It is used for running server side applications Node js is used to build applications of all levels that require a data intensive model Node js is dominant in the field of server side web development It ranks as one of the most popular Web frameworks and technologies This Stack Overflow survey gives a transparent look at how Node js contests with other server side technologies such as Django Laravel Ruby on rails and Flask ImageSourceThere are justifications behind of tremendous popularity of Node js This includes Node js is very easy to understand Node js is built with JavaScript bare bones the commonly used programming language Due to JavaScript s popularity it becomes relatively easy to get you up and running with Node js Node js has a giant ecosystem the Node Package Manager NPM NPM is a Node js registry that allows the use and access of open source libraries that cover the entire Node js web development pipeline These libraries allow you to install code that you can use on the fly This conclusively saves a lot of development time while still delivering light scalable and high speed apps Node js is blazingly light and fast allowing developers to create high performant applications It is built on a high performance V engine to compile and executes the JavaScript code As a developer you want to exclusively exploit the Node js capacity to build highly scalable applications Nevertheless you need different tools to ensure your Node js applications run even faster Let s discuss tips and tools developers can use to optimize and boost the already fast architecture that Node js delivers How to boost your Node js app Using a message brokerA message broker is a software that provides stable reliable communication between two or more applications subsets of an application Basically a message broker runs an architecture technique that allows you to break applications apart while still ensuring asynchronous communication In this case a message is the piece of information that you want to get processed from one application to another A broker acts as a medium where actual data payloads are transmitted between the applications A message broker uses a queue system to hold It manages queues with the order they are received and delivers them to the actual party Here is a general architecture of how a message broker works Now that we have an idea of what a message broker is How does it enhance the scalability of an application To answer this question let s learn the higher level advantages that a message broker offers Simplified Decoupling A message broker eliminates the dependencies between applications A message broker act as the middleman between a client and the server It s the work of the server to send data to a broker A server doesn t have to be in direct contact with its message recipient When the client needs the data it just gets the messages from the broker at any time It is not essential to use a discovery methodology to identify the location of server instances The message broker takes care of these situations Increased Architectural Reliability The server can send messages whether or not the client is active and vice versa The only component that must be running is a message broker When a server sends messages its job is done It is now the work of the broker to deliver the messages to the appropriate recipients Asynchronous Processing Assume you are running a Node js full scale API using the REST architecture The server and client are tightly coupled together to make requests and responses and exchange data The two communicate directly using designated endpoints based on the HTTP protocol What happens here is if the client sends a request it expects an immediate response from the server A REST communication is synchronously designed It works with pre defined requests that must return a response If the response fails undesirable user experiences can happen such as a timeout error On the other side message brokers are Asynchronous No one has to wait Timeout errors can never occur in such architectures How does this benefit your Node js apps Improved system performance Message brokers use message queues for asynchronous communication High demand processes can be isolated into independent processes This ensures data transfer is optimized as no system component is ever held up while waiting for the other That will help accelerate your application performance and enhance the user experience Scalability The server and the client can all expand and contract in response to data demands Components can keep adding entries to the queue even when demand peaks without fearing the system crash Likewise clients can be scaled up and workload distributed based on incoming data Great examples of message brokers can be found in this repo and a new one I recently found is Memphis It s a great fit for node js typescript NestJS Read more here Memphis SDKs for Node js Typescript with a modern dev first approach Build Node js with gRPCgRPC is an open source remote procedure call RPC framework used to build scalable fast communication microservices It helps you create a high performant communication protocol between services An RPC framework uses a client to directly invoke a function on the server In simple terms RPC is a protocol that allows a program to execute a procedure of another program located on another computer without explicitly coding the details of the network interaction It s automatically handled by the underlying framework What makes the gRPC framework special It uses the HTTP protocol Architectures such as REST use the traditional HTPP as the transfer protocol This protocol is based on a request response model using generic HTTP methods such as GET POST PUT and DELETE If many clients submit requests they are each accepted one at a time HTTP protocol supports a bidirectional communication model alongside the request response model It is possible to serve multiple requests and responses simultaneously This creates a loose coupling between server and client allowing you to build fast and efficient applications that support streaming with low latency It uses Protocol buffers protobuf as the message format When exchanging data using a SOAP protocol the exchange of information happens over XML When using REST the data are exchanged using JSON format In gRPC data is exchanged over protocol buffers Protocol buffers are lightweight faster and efficient as compared to both XML and JSON It has fewer payloads Under the hood it performs serialization of the structured data The protobuf compiler turns the data structure into the protobuf binary format which is used to describe the communication format between the client and the server Language agnostic The majority of modern languages and frameworks largely support gRPC such as Node js Python Go Java PHP and C A client and the server can be built with different languages frameworks It is more flexible than conventional APIs since clients can use any function not only the typical GET POST and DELETE methods How does running Node js with gRPC benefit your application Faster communication gRPC uses HTTP This minimizes latency and network bandwidth usage to ensure a smoother user experience At the same time it is API driven which provides you flexibility in interface design Increased application performance REST uses synchronous calls This ensures that the server has returned a response before execution continues However gRPC Asynchronous queries return instantaneously and the response is processed as an independent task Lightweight messages Protocol buffers are considered smaller compared to JSON messages with a difference of up to percentgRPC and Message Brokers help you handle and manage your application messages Check how gRPC compares to Message Broker Optimizing Node js with clusteringNode js is single threaded It uses only one CPU to execute an application by default This means if you have CPUs on your machine Node js threads are spawned to only utilize one CPU even when performing CPU intensive operations This hinders the application from utilizing the full power the underlying bare metals have which can lead to a server deadlock situation To solve this Node js uses clusters A cluster is a group of node instances running on a computer In this case Node js uses the main CPU as its master instance and other available CPUs as the worker instances Node js clustering allows networked Node js applications to be scaled across the number of available CPUs Here is a basic example of node clustering Image SourceThis computer has processors By default Node js single threaded nature will only utilize on the CPU However we can spawn tasks across the available CPUs using the Node js cluster module under the hood Node js can run the child process and share the server ports while still being able to communicate with the parent Node process Depending on the number of CPUs provided it significantly boosts the performance efficiency and reliability of your application Load balancingLet s assume you have a web app an online shop to be specific Users will access your shop using a domain name This domain will communicate with the server to get things done on the user s end However when you have large traffic accessing your online shop the demand for resources will increase You may be required to set up an additional server to distribute the traffic A situation that will make you have multiple replicas of your application But how do you instruct the users to use the resources from replica servers If they all connect to the initial server then you will run out of resources leaving you with other instances servers unutilized At this point what you need is to balance the traffic to access all servers And what you are exactly doing is load balancing to distribute the traffic evenly This gives an optimal performance of your application and ensures no node is getting overloaded Image SourceLoad balancing is a process of distributing application tasks within a given set of resources to ensure efficient usability of overall resources This way all your client requests get evenly and equally distributed to the backend nodes managing your application It is essential to have a load balancer configured to your Node js in order to scale your deployment based on the resources demand One of the popular tools used to deploy Load Balancing in Node js is NGINX Nginx is an Open Source tool that allows you to configure HTTP and HTTPS Servers for the client traffic Image SourceBy disrupting traffic a load balancer can prevent application failure and increase performance and availability How does building Node js Distributed systems with a load balancer benefits your application Horizontal Scalability Distributing your application instance allows it to manage a broader amount of incoming requests Reduced server downtimeFlexibilityRedundancyEfficiency CachingCaching is the temporary storing of data that is likely to be accessed repetitively This practice uses a memory buffer to temporarily save application lookups A cache streamlines service delivery by ensuring any repetitive task is not retrieved from the server but a memory buffer This way if a request is by the client it will first check any lookups saved in the cache without hitting the server Image SourceWhen running a server that delivers frequently requested resources from the same request it increases data delays to the clients Serving such computations from a cache layer allows you to deliver data and respond to requests with minimum delays Image SourceThe first time a request is sent and a call made to the server is called a cache miss The output will be saved in the cache before returning the data to the user Image SourceIf the requested data is found in the cache memory It s called a cache hit The result will be returned from the cache store and the complex data query doesn t need to be processed again Image SourceIt is important to always check the cache hit rates and polish the caching strategy accordingly A cache layer is not infinite Therefore you need effective cache management For example Invalidate a cache after a certain period Removing cache to ensure caching hit ratio remains high Invalidate a cache below certain usage thresholds Distributed systems need to complete many API calls to match a single response payload Running such calls with a cache drastically reduces the cost of data aggregation Running such Node js tasks caching can Greatly reduce the data query response time Improve the scalability of an application Reduced server load which greatly increases server performance Caching improves database performance A cached request doesn t have to hit the server meaning the data request query doesn t have to access your database layer Node js caching tools include Redis Cache Redis uses an in memory database to store the entire data set reducing the extra cost of a lookup Using caching reverse proxy such as Varnish Cache Vanish is an HTTP accelerator tool that allows you to save your server side requests and responses to reduce the loading times of your Node js server Using Node js App server HTTP Cache Middleware It allows you to add a Cache Middleware that connects with the Node js HTTP to reduce API latency Using Nginx for content caching Nginx caches content of application servers both static and dynamic to streamline the client delivery and reduce server load Other practices to power up your Node js appThere are many practices that you can use and ensure Node js scales yourapplication Other practices and tools include Practicing asynchronous executions Logging and monitoring your application performance Writing light and compact code and ensuring you eliminate lines of codes and unused library components Practicing memory optimizationRunning Node js using SSL TLS underline and HTTP underline Enhancing data handling techniques for example GraphQL vs REST designs Making use of Web Sockets to improve server communication Use the Node js Deflate and Gzip compression middleware to compress server requests and responses ConclusionBuilding an application is the first step to connecting with your users Your application requires day to day maintenance to maintain a steady experience for these users This guide helped you learn some of the common strategies and enhancement tools that you can use to boost your Node js apps	2022-08-18 10:13:00
Apple	AppleInsider - Frontpage News	How to search offline storage with indexing apps for macOS Monterey	https://appleinsider.com/inside/macos-monterey/tips/how-to-search-offline-storage-with-indexing-apps-for-macos-monterey?utm_medium=rss	How to search offline storage with indexing apps for macOS MontereyMaintaining track of files stored across multiple unconnected hard drives can be a chore but indexing and database programs can help even when the hard drive isn t connected to a computer Hard drive photo by Jessica Lewis CreativeThese tools are helpful when preparing to move data to a NAS device setting up drives into a custom RAID configuration or just remembering what was stored on hard drive number four at home Read more	2022-08-18 10:41:24
Apple	AppleInsider - Frontpage News	India the latest country that may require Apple to shift to USB-C for the iPhone	https://appleinsider.com/articles/22/08/18/india-the-latest-country-that-may-require-apple-to-shift-to-usb-c-for-the-iphone?utm_medium=rss	India the latest country that may require Apple to shift to USB C for the iPhoneIndia s government is investigating adopting common chargers for all portable electronic devices adding yet another government to the list who wants Apple to move away from its Lightning connector Following Europe s mandate that USB C be adopted as a common charging standard by India is considering doing the same On Wednesday August Indian Consumer Affairs Secretary Rohit Kumar Singh held a meeting with manufacturers to begin exploring the issue According to local newspaper the Deccan Herald the government has now decided to look at adopting two common chargers One of the two may be USB C but there was no information about what the second type could be Read more	2022-08-18 10:21:56
医療系	医療介護 CBnews	BA.2.75系統、ゲノム解析で計16例検出-東京都モニタリング会議「BA.5が流行の主体」	https://www.cbnews.jp/news/entry/20220818194235	新型コロナウイルス	2022-08-18 19:50:00
医療系	医療介護 CBnews	病院への立入検査、医師数の適合率が微増-厚労省、19年度の結果公表	https://www.cbnews.jp/news/entry/20220818185731	厚生労働省	2022-08-18 19:05:00
金融	金融庁ホームページ	アジア地域ファンド・パスポート第11回合同委員会 バーチャル会合に係るプレスリリースを公表しました。	https://www.fsa.go.jp/inter/etc/20220817.html	委員会	2022-08-18 12:00:00
ニュース	BBC News - Home	MP Margaret Ferrier pleads guilty to exposing public to Covid	https://www.bbc.co.uk/news/uk-scotland-62589375?at_medium=RSS&at_campaign=KARANGA	train	2022-08-18 10:49:59
ニュース	BBC News - Home	'Madame Butterfly': Japanese fashion pioneer Hanae Mori dies	https://www.bbc.co.uk/news/world-asia-62585910?at_medium=RSS&at_campaign=KARANGA	french	2022-08-18 10:47:56
ニュース	BBC News - Home	Decline in cash use eases after pandemic slump	https://www.bbc.co.uk/news/business-62576024?at_medium=RSS&at_campaign=KARANGA	popular	2022-08-18 10:37:43
ニュース	BBC News - Home	Casemiro: Manchester United make an approach to sign Real Madrid midfielder	https://www.bbc.co.uk/sport/football/62588396?at_medium=RSS&at_campaign=KARANGA	Casemiro Manchester United make an approach to sign Real Madrid midfielderManchester United make an approach to sign Real Madrid s Brazil midfielder Casemiro in a deal that would be worth around £m	2022-08-18 10:41:07
ニュース	BBC News - Home	England v South Africa: Ollie Pope survives after 'comical' drop by Sarel Erwee	https://www.bbc.co.uk/sport/av/cricket/62591850?at_medium=RSS&at_campaign=KARANGA	England v South Africa Ollie Pope survives after x comical x drop by Sarel ErweeOllie Pope survives an early scare after a comical drop by Sarel Erwee on day two of the first Test at Lord s	2022-08-18 10:43:18
ニュース	BBC News - Home	'Don't panic but don't dither over clearing'	https://www.bbc.co.uk/news/uk-62591548?at_medium=RSS&at_campaign=KARANGA	chair	2022-08-18 10:33:31
北海道	北海道新聞	菅氏、政策実現へ地方視察　存在感発揮懸命の声も	https://www.hokkaido-np.co.jp/article/719275/	首相	2022-08-18 19:41:00
北海道	北海道新聞	北海道内１９日夕方まで大雨　土砂災害、浸水に注意を	https://www.hokkaido-np.co.jp/article/719271/	太平洋側	2022-08-18 19:39:00
北海道	北海道新聞	小谷実可子さん「美しく憧れ」　森英恵さんが水着手がける	https://www.hokkaido-np.co.jp/article/719273/	小谷実可子	2022-08-18 19:39:00
北海道	北海道新聞	日本製鉄、基準超シアン検出を報告せず　千葉の工場	https://www.hokkaido-np.co.jp/article/719268/	千葉県君津市	2022-08-18 19:33:33
北海道	北海道新聞	中日、山下ら５選手が陽性　ＤｅＮＡ高城も　新型コロナ	https://www.hokkaido-np.co.jp/article/719256/	田島慎二	2022-08-18 19:36:29
北海道	北海道新聞	全国中学競泳２５ｍプールで開催　史上初、３月の地震被害で	https://www.hokkaido-np.co.jp/article/719270/	宮城県利府町	2022-08-18 19:36:00
北海道	北海道新聞	パートナー制度で連携協定　茨城と佐賀、都道府県で初	https://www.hokkaido-np.co.jp/article/719247/	性的少数者	2022-08-18 19:19:14
北海道	北海道新聞	国内コロナ感染、最多２５万人超　さらに増える懸念と厚労相	https://www.hokkaido-np.co.jp/article/719269/	新型コロナウイルス	2022-08-18 19:31:00
北海道	北海道新聞	創成川東で再開発加速　「札幌第３の拠点」へ　オフィスやマンション建設続々	https://www.hokkaido-np.co.jp/article/719254/	創成川東	2022-08-18 19:26:23
北海道	北海道新聞	創成川東の再開発　地価・建設費高騰の影響懸念も	https://www.hokkaido-np.co.jp/article/719261/	創成川東	2022-08-18 19:25:00
北海道	北海道新聞	「不信任は違法」と提訴　失職の前あきる野市長	https://www.hokkaido-np.co.jp/article/719266/	不信任決議	2022-08-18 19:21:00
北海道	北海道新聞	里見、プロ試験初戦黒星　女性初の棋士目指す	https://www.hokkaido-np.co.jp/article/719238/	将棋棋士	2022-08-18 19:20:59
北海道	北海道新聞	デジタル技術で高齢者見守り　平取町が実証事業　スマートスピーカー活用	https://www.hokkaido-np.co.jp/article/719243/	日高管内	2022-08-18 19:17:27
北海道	北海道新聞	Ｊ１磐田の渋谷監督「全身全霊」　就任会見で決意	https://www.hokkaido-np.co.jp/article/719262/	全身全霊	2022-08-18 19:14:00
北海道	北海道新聞	ゲイツ氏「感染症対策議題に」　来年の広島サミットで	https://www.hokkaido-np.co.jp/article/719255/	議題	2022-08-18 19:12:00
北海道	北海道新聞	倶知安高美術部・内田さん、岩内の寺にふすま絵　ベンガルトラやハス…仏教伝来表現	https://www.hokkaido-np.co.jp/article/719249/	岩内町高台	2022-08-18 19:05:00
北海道	北海道新聞	自民・武田元総務相、平沢氏元復興相　旧統一教会系団体に会費	https://www.hokkaido-np.co.jp/article/719246/	政治団体	2022-08-18 19:04:07
北海道	北海道新聞	中国、山崩れで１６人死亡　大雨で土石流も	https://www.hokkaido-np.co.jp/article/719245/	青海省	2022-08-18 19:01:00
IT	週刊アスキー	『SDガンダム バトルアライアンス』でオリジナルキャラクター担当声優のサイン色紙が当たる発売直前Twitterキャンペーンを開催！	https://weekly.ascii.jp/elem/000/004/102/4102169/	twitter	2022-08-18 19:55:00
IT	週刊アスキー	『A列車で行こう ひろがる観光ライン』収録車両の発表動画Part3が公開！	https://weekly.ascii.jp/elem/000/004/102/4102168/	発売予定	2022-08-18 19:40:00
IT	週刊アスキー	Switch版『初音ミク Project DIVA MEGA39’s』のDLCシーズン3が8月25日から配信決定！	https://weekly.ascii.jp/elem/000/004/102/4102154/	nintendo	2022-08-18 19:05:00