投稿時間:2023-02-07 22:17:12 RSSフィード2023-02-07 22:00 分まとめ(19件)

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IT	ITmedia 総合記事一覧	[ITmedia News] 河野大臣、“食器ペロペロ”など相次ぐ迷惑動画に言及　「責任ある将来を考えた行動を」	https://www.itmedia.co.jp/news/articles/2302/07/news184.html	itmedia	2023-02-07 21:27:00
IT	ITmedia 総合記事一覧	[ITmedia News] 三菱重工、国産ジェット機の開発中止を発表　「事業性が見通せない」	https://www.itmedia.co.jp/news/articles/2302/07/news183.html	itmedia	2023-02-07 21:20:00
python	Pythonタグが付けられた新着投稿 - Qiita	Python の学習を始めました	https://qiita.com/pump33/items/81561e68bbfcba561b95	機械学習	2023-02-07 21:30:03
js	JavaScriptタグが付けられた新着投稿 - Qiita	コンポーネントをVSCode上でプレビューできるvue-component-previewが最強だった件	https://qiita.com/take_me/items/5f5fbc1f2d991158cd9d	abstract	2023-02-07 21:59:23
AWS	AWSタグが付けられた新着投稿 - Qiita	インフラ設計者がAWS CDKに入門してみる②～構築編～	https://qiita.com/nnydtmg157/items/33b0b43dd438cfd843c4	awscdk	2023-02-07 21:19:04
海外TECH	DEV Community	Distributed Tracing with OpenTelemetry - Part I	https://dev.to/signoz/distributed-tracing-with-opentelemetry-part-i-322a	Distributed Tracing with OpenTelemetry Part IThis article was originally posted on SigNoz Blog and is written by Nitin Rohidas Have you heard about traces Most likely yes Do you confuse it with auditing Hope not Today we re going to talk about tracing specifically “Distributed Tracing and do a deep dive into it Once we re familiar with distributed tracing we will show you how to implement it with OpenTelemetry a new age observability framework What is Distributed Tracing It is a method of tracking application requests as they flow from front end devices to back end services and databases in a distributed system Why do we need Distributed Tracing We will first understand what is a Distributed System Distributed systems are systems that look like a single application to an end user but at their core the functionalities are hosted and deployed on multiple servers that communicate over the network A typical distributed system will have three main servers a front end server a back end application server and a database server Each of these servers will of course have a replica for high availability This is still not a complex system You have just a handful of applications to trace a request which you can easily trace via simple log files However things become more complicated when working with a microservices architecture You would ask “What are microservices Basically microservices are a software approach that creates applications as a loose coupling of specific services or functions rather than as a single “monolithic program As you break your single monolithic application into smaller sets of services the number of moving components in your architecture increases It becomes complex to track a request and its flow through the mesh of all the services In the olden days a single log file was enough to scan through the logs to troubleshoot an issue However in a microservice architecture you could end up with services each with its logging file and separate process with multiple instances running and distributed across multiple environments and locations Imagine the pain of trying to understand or track a request in such a complex web of dynamic components These requests are nearly impossible to track with traditional techniques designed for a single service application Netflix Microservices call tree hierarchyTherefore we need a tool that can help us trace requests How do we implement Distributed Tracing The most common poor man s tool for tracing is logging Yes you ll spit out log statements in each and every method and be able to trace a request within a service But it won t suffice as most applications are multithreaded Tracing a request in log files is very tedious and not easy You will soon need a unique identifier tagged in each log statement so that when you look at the log files of different services you can trace the request with the unique identifier for a single request in all the log files Clearly logging is not the right approach for tracing We need a more robust and mature solution that can handle the complex architectures we operate in Such a solution should be able to handle the complexity of the following Creating a unique identifier across a distributed systemPropagating the unique identifier across each service Capturing important metrics like the response time of each method service calls and database calls Building such a solution is not easy and is very costly This is when modern tracing solutions such as Zipkin and Jaeger gained popularity It not only helps to capture the flow of requests but also helps identify how long each request took which components and services it interacted with and the latency created during each step Types of TracingThere are generally two types of tracing Code Level Tracing ーIn this approach a trace log is generated and stored in a system that can be used to visualize the flow of requests between different services and it also captures code level execution traces Log Tracing ーIn this approach the logs from all the services are correlated by injecting a TraceId  which is unique for any request The TraceId is propagated across services and also spit out in every log statement for correlating the logs in an automated way This concept is further evolved to collect log statements from all the services and store them centrally for easier viewing and troubleshooting also called Centralized Logging or Log Aggregation How does the modern Tracing solution work To understand this first understand some important keywords Observability is the ability to measure the internal states of a system by examining its outputs It more of a white box approach to knowing what is happening inside the system But how will you generate outputs to measure a system You will need to write additional code to observe a system This process is called Instrumentation Instrumentation is the process of measuring events in software using code i e code must be added to a system to expose its inner state Like unit testing we write code to test if the code works Instrumentation is the code we write to measure different metrics like response times etc Telemetry is the automatic recording and transmission of data from remote or inaccessible sources to an IT system in a different location for monitoring and analysis It encompasses instrumenting the system under observation and sending telemetry data to a visualization tool Typical Components of a Tracing tool solution A typical tracing tool has the following high level architecture It has the following high level components i e instrumentation libraries agent a database a query service and a visualization tool Instrumentation libraries have the code to inject or generate code that can auto instrument the code under observation A database is needed to store the telemetry data The database should be efficient in storing large amounts of data and serving analytical queries A query service is an interface between the frontend and the database The instrumentation library sends the trace data that gets stored in a database The visualization tool loads the trace data from the database and shows a web UI that shows trace information in a graphical format For example Zipkin and Jaeger also have similar architecture Simplified view of Zipkin and Jaeger Architecture Problems with current observability toolsMost of the APM tool vendors provide a black box approach to telemetry and observability They force customers to install their agents for instrumentation on the customer s infrastructure which provides no details about the implementation It also tightly couples a client to a vendor as changing a vendor now means doing everything new from front to back Existing solutions have following problems Vendor specific agents on Clients infrastructure Proprietary protocol message format and database used Switching to other tools is very expensive because of the tight coupling of vendor agents Even FOSS tools have their own agent which introduces coupling You cannot use Zipkin agent and work with a Jaeger front end tool Overall the architecture tightly couples the Telemetry collection and Telemetry Storage aspects of the solution A view of how different tracing solution are not interoperable and tightly coupledWhat do we really want We want a solution that has Instrumentation tools that can do AutoInstrumentation and produce rich Telemetry data Go away from Black box solutions and make Telemetry easy to understand and configure Adopt or establish Industry standards to achieve high interoperability between competing vendors and technologies Removing vendor coupling due to proprietary agentsSegregation of concerns treat the concern of Telemetry Collection vs telemetry Storage as independent components not tied to each other And that s where OpenTelemetry comes into the picture Introducing OpenTelemetry A new Standard for ObservabilityOpenTelemetry is a standard for implementing telemetry in your applications It provides a specification containing the requirements that all implementations should follow as well as some implementations for major languages including an API and a SDK to interact with it OpenTelemetry was born from the merger of two other standards that decided to unify forces instead of competing with each other these projects were OpenTracing and OpenCensus This brings maturity to the standard as both of the previous projects were already mature and production tested Another important fact is that OpenTelemetry is part of the Cloud Native Computing Foundation  CNCF and one of the most popular and active open source projects It has become the second highest velocity project in the CNCF ecosystem Kubernetes remains the top one in From observability point of view OpenTelemetry provides a level playing field for all Observability providers avoiding vendor lock in and interoperability with other OSS projects in the Telemetry and Observability ecosystem We will be going more deeply into open Telemetry in our next article where we will be learning more about OpenTelemetry and also show you a demo with a sample application Guide to Distributed Tracing with OpenTelemetry Part II	2023-02-07 12:30:27
Apple	AppleInsider - Frontpage News	Future Apple Watch could have more uses both on and off wrist	https://appleinsider.com/articles/23/02/07/apple-working-on-how-to-make-apple-watch-have-more-uses-on-off-wrist?utm_medium=rss	Future Apple Watch could have more uses both on and off wristApple is considering how to redesign the Apple Watch and band so that the watch can quickly be snapped on and off letting owners take it off their wrists to use as a small handheld device Apple has slowly been building up the Apple Watch as a separate device progressively less dependent on users having aniPhone Aside from the technology issues of fitting more functionality into such a small device though there is the fact of how the Watch is worn According to a newly granted patent Watch Having a Release Mechanism Apple sees being worn on the wrist as being both good and bad Read more	2023-02-07 12:54:32
Apple	AppleInsider - Frontpage News	Marshall Stanmore III review: Wildly impressive but imperfect Bluetooth speaker	https://appleinsider.com/articles/23/02/07/marshall-stanmore-iii-review-wildly-impressive-but-imperfect-bluetooth-speaker?utm_medium=rss	Marshall Stanmore III review Wildly impressive but imperfect Bluetooth speakerThe vintage style and deep rich sound of the Marshall Stanmore III might appear to be the perfect home Bluetooth speaker but its superficial styling masks minor compromises that are magnified by its steep retail priceMarshall Stanmore IIIThe Stanmore III is a dedicated home speaker meant to be stationary as there s no battery inside For portable needs you can look at the Tufton Emberton or Woburn speakers from Marshall Read more	2023-02-07 12:04:59
Apple	AppleInsider - Frontpage News	Apple to hold first in-person summit in years, focused on AI	https://appleinsider.com/articles/23/02/07/apple-to-hold-first-in-person-ai-summit-in-years?utm_medium=rss	Apple to hold first in person summit in years focused on AIAs Apple begins to ease its COVID policies the company has decided to hold its annual internal AI summit in person which could mean the company may soon return to traditional media events Steve Jobs TheaterThe AI summit is similar to Apple s annual Worldwide Developers Conference except it caters only to Apple employees Topics this year are expected to focus on ChatGPT and OpenAI Read more	2023-02-07 12:35:18
Apple	AppleInsider - Frontpage News	Apple execs discuss how M2 Apple Silicon pushes tech to the limit	https://appleinsider.com/articles/23/02/07/apple-execs-discuss-how-company-pushes-technology-to-the-limit-with-m2?utm_medium=rss	Apple execs discuss how M Apple Silicon pushes tech to the limitApple s platform architecture VP Tim Millet and product marketing VP Bob Borchers weigh in on the benefits of bringing chip design in house Apple s M chipsetIn an interview with TechCrunch Apple executives sat down to discuss Apple s shift to silicon and what it means for consumers and where they hope to take the technology Read more	2023-02-07 12:40:02
海外TECH	Engadget	Amazon sale takes up to 53 percent off Echo Show smart displays	https://www.engadget.com/amazon-sale-echo-show-smart-displays-124010160.html?src=rss	Amazon sale takes up to percent off Echo Show smart displaysThis is your chance to grab one or some of Amazon s Echo Show displays at a discount if you ve been planning to buy any of them Several models of the smart display are currently on sale and Amazon is even offering most of them for almost half their original price You can get the second generation Echo Show released in for or percent less than its retail price of And yes all its available colors ーCharcoal Deep Sea Blue and Glacier White ーare being sold at that price Even the version for kids which comes with parental controls one year free access to Amazon s Kids service and a two year worry free guarantee is available for right now The Echo Show for kids will typically set you back nbsp Buy Amazon Echo Show displays at Amazon up to percent offWe gave the Echo Show a score of in our review and recommended it for those who want an alarm clock for their nightstand It also has great sound quality for its size and it lets you snooze your alarm by tapping the top part of the device If you re looking for a smart display for your living room or kitchen however the Echo Show may be a better fit It s currently on sale for which is percent less than its retail price of The device available in Charcoal and Glacier White has an inch HD touchscreen and a megapixel camera making it a better option for video calls In comparison the Echo Show has a inch screen and a megapixel camera We found Echo Show s audio to be superior to its smaller sibling s as well nbsp Finally in case you d rather have a wall mountable smart display the Echo Show is also on sale for or less than retail It has a inch full HD screen surrounded by a white bezel Since the whole device is housed in a black metal frame it could look like a painting or a large picture frame if you use it to display artwork or photos The device s large screen real estate also means you can display widgets and see various information at a glance nbsp Follow EngadgetDeals on Twitter and subscribe to the Engadget Deals newsletter for the latest tech deals and buying advice	2023-02-07 12:40:10
海外TECH	Engadget	The Morning After: Google's ChatGPT rival is called Bard	https://www.engadget.com/the-morning-after-googles-chatgpt-rival-is-called-bard-121534577.html?src=rss	The Morning After Google x s ChatGPT rival is called BardIn the face of so much ChatGPT news and buzz Google announced on Monday its own chatbot AI project Bard will be unveiled with more details at Wednesday s Google Presents event in Paris Bard will serve as an quot experimental conversational AI service quot according to a blog post by Google CEO Sundar Pichai Monday It uses Google s existing Language Model for Dialogue Applications LaMDA platform which the company has been developing for the past two years However it won t be open to everyone like ChatGPT currently is which ruins the hype a little Google is starting with a lightweight version of LaMDA open to a select group of trusted users before scaling up quot We ll combine external feedback with our own internal testing to make sure Bard s responses meet a high bar for quality safety and groundedness in real world information quot Pichai said As we ll get into below it s a busy time for OpenAI s chatbot tech Microsoft has a surprise event later today and that AI generated Seinfeld stream based on OpenAI s GPT Davinci model was banned from Twitch Mat SmithThe biggest stories you might have missedBastl Microgranny Monolith review Vintage sampling grit in a portable packageNintendo classic Zelda A Link to the Past gets an unofficial PC portAnker charging accessories are up to percent off in Amazon saleGoogle s Pixel phones have dropped to their lowest prices to dateWhy I m reviewing Hogwarts Legacy The Last of Us episode five will premiere two days early on HBO MaxOverwatch s third season will let you turn Doomfist into One Punch ManSony s expansive PlayStation VR FAQ answers almost all your burning questionsThe peripheral will arrive on February nd SonySony has published a lengthy FAQ for all things PS VR It s promised more than games to choose from during the launch window defined as the first month from the release date Among those are Horizon Call of the Mountain a VR spin off of the Horizon games and VR modes for Resident Evil Village and Gran Turismo which will both be free for folks who already own them As you ve probably already heard original PS VR games won t play on PS VR However several developers have created PS VR versions of existing games and some are offering free upgrades Unlike with PS VR you don t need to plug in a camera to your PS to use PS VR You can however film yourself while playing by connecting a PS HD Camera Continue reading Microsoft is holding a press event tomorrow with ChatGPT expected to feature heavilyMicrosoft may show just how cozy it s getting with OpenAI Microsoft isn t going to let Google get the jump on the AI chatbot buzz It has an event today at PM ET The company is keeping tightlipped but it s expected to show its integration of ChatGPT into Bing and other uses of the conversational AI technology Microsoft first invested in OpenAI in and backed the startup again in Last month it committed to a quot multibillion dollar quot deal unofficially believed to be worth billion over several years Microsoft has had some misses with chatbots in the past hopefully this will be different Does this mean I ll actually start using Bing Continue reading AI Seinfeld was surreal fun until it called being trans an illness“Where d everybody go the Jerry character asked after a transphobic rant TwitchTwitch has banned “Nothing Forever the AI generated Seinfeld stream for at least days following a transphobic and homophobic outburst It s the latest example of “hate in hate out when AI chatbots are trained on offensive content without adequate moderation As reported by Vice during one of the recent AI scripted standup acts the Seinfeld counterpart suggested being transgender is a mental illness In what almost seemed like an awareness of the material s offensiveness the AI comedian quickly added “But no one is laughing so I m going to stop Thanks for coming out tonight See you next time Where d everybody go Continue reading Tinder adds an incognito modeThe app will flag more examples of harmful language too Tinder is rolling out some new safety features and updates in time for Valentine s Day Users will now be able to take advantage of an incognito mode which Tinder says is a quot step up quot from hiding your profile completely Only folks you Like will see you in their recommendations In addition you can block profiles that pop up in your suggestions which could mitigate some awkwardness if you spot an ex or someone else from your life Continue reading	2023-02-07 12:15:34
ニュース	BBC News - Home	Epsom College deaths: Teacher and daughter shot by husband, police believe	https://www.bbc.co.uk/news/uk-england-surrey-64544884?at_medium=RSS&at_campaign=KARANGA	george	2023-02-07 12:44:26
ニュース	BBC News - Home	Mark Cavendish robbery: Two men jailed for raid at cyclist's home	https://www.bbc.co.uk/news/uk-england-essex-64541757?at_medium=RSS&at_campaign=KARANGA	cavendish	2023-02-07 12:36:36
ニュース	BBC News - Home	Richard Sharp: BBC chairman denies giving Boris Johnson financial advice	https://www.bbc.co.uk/news/entertainment-arts-64552571?at_medium=RSS&at_campaign=KARANGA	boris	2023-02-07 12:14:30
ニュース	BBC News - Home	Disney removes Simpsons 'forced labour' episode in Hong Kong	https://www.bbc.co.uk/news/world-asia-china-64550177?at_medium=RSS&at_campaign=KARANGA	chinese	2023-02-07 12:16:50
ニュース	BBC News - Home	Turkey earthquake: Unanswered cries as survivors wait for help	https://www.bbc.co.uk/news/world-europe-64555959?at_medium=RSS&at_campaign=KARANGA	adana	2023-02-07 12:44:11
ニュース	BBC News - Home	Leeds: Patrick Bamford a 'joke' for criticising Jesse Marsch tactics - Chris Sutton	https://www.bbc.co.uk/sport/football/64552181?at_medium=RSS&at_campaign=KARANGA	Leeds Patrick Bamford a x joke x for criticising Jesse Marsch tactics Chris SuttonLeeds United striker Patrick Bamford should have kept his criticism within the dressing room says ex forward Chris Sutton	2023-02-07 12:17:44
IT	週刊アスキー	シグマが大口径単焦点レンズ「SIGMA 50mm F1.4 DG DN」を発表	https://weekly.ascii.jp/elem/000/004/123/4123810/	mmfdgdn	2023-02-07 21:30:00