投稿時間:2022-06-21 15:22:14 RSSフィード2022-06-21 15:00 分まとめ(29件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
ROBOT	ロボスタ	最大ピース数373個の超精密『機動戦士ガンダム』の紙製立体パズルが登場！「プレミアムバンダイ」で予約開始	https://robotstart.info/2022/06/21/paper-art-si-gu-mi-pro-gundam.html		2022-06-21 05:48:27
IT	ITmedia 総合記事一覧	[ITmedia PC USER] JEITA、2022年5月のPC国内出荷実績を発表　月間出荷が40万台を割り込む	https://www.itmedia.co.jp/pcuser/articles/2206/21/news124.html	itmediapcuserjeita	2022-06-21 14:21:00
IT	ITmedia 総合記事一覧	[ITmedia News] VTuber「壱百満天原サロメ」、チャンネル登録者数が「にじさんじ」トップに　134万人超え「葛葉」抜く	https://www.itmedia.co.jp/news/articles/2206/21/news122.html	itmedianewsvtuber	2022-06-21 14:19:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] イオン、トップバリュ3品目を値上げ　約5000品目は「価格据え置き」継続	https://www.itmedia.co.jp/business/articles/2206/21/news120.html	itmedia	2022-06-21 14:15:00
TECH	Techable（テッカブル）	環境によって見え方や質感を変える布。西陣織×テクノロジーのスマートテキスタイルが欧州で評価	https://techable.jp/archives/180903	zozonext	2022-06-21 05:00:43
IT	情報システムリーダーのためのIT情報専門サイト IT Leaders	叙々苑、受発注・請求業務をクラウド化、1日あたり1000枚の紙の納品書を10枚に削減 | IT Leaders	https://it.impress.co.jp/articles/-/23356	itleaders	2022-06-21 14:48:00
技術ブログ	Developers.IO	全文検索SaaS「Algolia」のAPI利用状況をログから調べる	https://dev.classmethod.jp/articles/analyze-algolia-api-usage/	algolia	2022-06-21 05:40:30
技術ブログ	Developers.IO	[AWS Step Functions / AWS CDK] EvaluateExpressionタスクを使って配列の操作（要素追加、結合、Map処理など）をしてみた	https://dev.classmethod.jp/articles/aws-step-functionsaws-cdk-manipulating-arrays-adding-elements-joining-map-processing-using-the-evaluateexpression-task/	awsstepfunctionsawscdk	2022-06-21 05:07:34
海外TECH	DEV Community	Have you ever mistakenly created test data on production server?	https://dev.to/yuki777/have-you-ever-mistakenly-used-a-development-server-for-a-production-server-3cke	Have you ever mistakenly created test data on production server I made so many mistakes so I wrote a little code Hope it helps you Chrome extension Source code	2022-06-21 05:37:18
海外TECH	DEV Community	I love listening to music when coding, and you should too!	https://dev.to/unitybuddy/i-love-listening-to-music-when-coding-and-you-should-too-3b1e	I love listening to music when coding and you should too Hello buddies Most of us developers love to listen to music But why You may have many answers So I m not going to tell you Why you love music I m going to show you Why You Should Listen To Music While Coding Music reduces stress and anxietyWhen you listen to music you can lower down your stress hormones The brain also stimulates the formation of dopamine a molecule that makes you happy When you listen to your favourite song you will produce extra dopamine This way the music helps in reducing stress The mind also becomes clear when you listen to music A clear mind will help to clear your anxiety away You forget about all the what if scenarios Your mind will clear because music helps your blood flow This way more oxygen will come to your brain With extra oxygen you have fewer distracting thoughts Music helps you to focusWhen you listen to music you will get in the zone The focus will only be on the code you are writing Nothing else around you will matter Most of songs without lyrics helps you to keep in focus When you have headphones on people also are less likely to talk to you The headphones are like a barrier People will only pass this barrier if they need to talk to you That s a great trick too Coding at night can help you to focus too Now imagine Coding at night with Music Music Can Motivate YouMusic will make you happy When you are happy you will work more effectively Also the ending of tracks and changes in rhythms can urge your brain in making decisions That s why I love Dance Monkey when coding in afternoons Music can help to keep the brain alert and prevent it from switching offWith the different sounds in the background Your brain will notice the rhythms changing and tracks ending With this difference in background sound your brain will be alert Music increases the ability to collect thoughtsWhen you hear a specific piece of music your brain will connect it to a memory that is stored in your brain amp helps you relax This way you can put your thoughts together And also you may get many creative ideas while listening to music For me I get many ideas about cool things to do with Python or Stories to add in a Game and sometimes An idea for tomorrow s blog post But what kind of music should you listen to How much you will get in the zone depends on the kind of music Here are some tips for finding good coding music Limit the vocalsOur brain tends to focus on the words that are being sung When there are no vocals the music will fade away in the background This way you will get yourself in the zone and it will be easier to solve a difficult coding problem Listen to familiar musicIf you listen to new music you tend to focus on the music Unknowingly your mind will wander off for a bit When you listen to familiar music your brain will recognize the music The focus will be on the music then not on the coding Listen to music with a good beat and paceIf you listen to slow music your brain will also move slowly The same applies to fast music When the music is fast your brain will feel rushed The middle way is perfect Your brain will still be active enough to solve coding problems but it won t be rushed So what about you Do you listen to music while coding too If yes make sure to add your favorite music tracks in the comments Happy Coding	2022-06-21 05:31:41
海外TECH	DEV Community	Understanding and tuning parameters of connection pools	https://dev.to/kevwan/understanding-and-tuning-parameters-of-connection-pools-1fdb	Understanding and tuning parameters of connection pools Did you feel the same When you are developing backend services do you often have the following questions How many connections does the database connection pool have How long does the lifetime of each connection last When a connection is abnormally disconnected is it the server side or the client side that actively disconnected Does the underlying library have KeepAlive requests when there are no requests for a long time Handling complex network situations is always one of the key points and difficulties of backend development Are you also suffering from debugging various network situations Why I wrote tproxy When I was doing backend development and writing go zero I would often need to monitor network connections and analyze the request packets For example Analyzing when a gRPC connection connects and reconnects and adjusting various parameters accordingly e g MaxConnectionIdleAnalyze the MySQL connection pool how many connections are currently available and what the connection lifetime policy isIt can also be used to observe and analyze any TCP connection to see if the server is actively disconnecting or the client is actively disconnecting etc Installation of tproxy GOPROXY direct go install github com kevwan tproxy latestOr use the docker image Shell Shell docker run rm it p lt listen port gt lt listen port gt p lt remote port gt lt remote port gt kevinwan tproxy v tproxy l p lt listen port gt r host docker internal lt remote port gt arm system Shell docker run rm it p lt listen port gt lt listen port gt p lt remote port gt lt remote port gt kevinwan tproxy v arm tproxy l p lt listen port gt r host docker internal lt remote port gt Usage of tproxy Shell tproxy helpUsage of tproxy d duration the delay to relay packets l string Local address to listen on default localhost p int Local port to listen on q Quiet mode only prints connection open close and stats default false r string Remote address host port to connect t string The type of protocol currently support grpc Analyze gRPC connections Shelltproxy p r localhost t grpc d ms Listening on localhost and port Redirect requests to localhost Analyze packet format as gRPCPacket delay of mswhere we can see the initialization and back and forth of a request from gRPC and we can see the first request with the stream id as For example gRPC has a MaxConnectionIdle parameter that sets how long the connection will be closed after idle and we can directly observe that the server will send an http GoAway packet after the time is up For example if I set MaxConnectioinIdle to minutes the connection is automatically closed after minutes of no requests and then a new connection is created Analyzing MySQL ConnectionsLet s analyze the impact of MySQL connection pooling settings on the connection pool For example if I set the parameters to GomaxIdleConns maxOpenConns maxLifetime time Minute conn SetMaxIdleConns maxIdleConns conn SetMaxOpenConns maxOpenConns conn SetConnMaxLifetime maxLifetime We set MaxIdleConns and MaxOpenConns to different values then we do a benchmark test with hey Shellhey c z s http localhost lookup url go zero dev We did a benchmark test with a concurrency of QPS and a duration of seconds and the connection result is as follows As we can see connections were established in secondsThe service constantly closing existing connections and reopening new onesEach time the connection is used and put back it may exceed MaxIdleConns and then the connection will be closedWhen a new request comes to get the connection it is found that the number of connections is less than MaxOpenConns but there are no more connections available so a new connection is created This is the reason why we often see a lot of TIME WAIT connections for MySQL Then we set MaxIdleConns and MaxOpenConns to the same value and do the same benchmark test again We can see that connections have been maintained constantAfter a minute of idle ConnMaxLifetime all connections are closedThe ConnMaxLifetime here must be set smaller than the wait timeout you can get the wait timeout value from the following method I recommend setting a value of less than minutes because some switches will clean up idle connections for minutes for example when we are doing social apps the heartbeat packets usually do not exceed minutes The specific reasons can be seen in LThere is a paragraph in issue of go sql driver that also talks about ConnMaxLifetime as follows sec is too long one minutes is enough for most use cases Even if you configure entire your DC OS switch router etc TCP connection may be lost from various reasons bugs in router firmware unstable power voltage electric nose etc So if you don t know how to set MySQL connection pool parameters you can refer to go zero s settings Also ConnMaxIdleTime has no effect on the above benchmark test results so you don t really need to set it If you have any questions about the above settings or if you think something is wrong please feel free to leave comments and let s discuss Project addresstproxy go zero Welcome to use and star to support us	2022-06-21 05:12:21
海外TECH	CodeProject Latest Articles	Open-source SPL that can execute SQL without RDB	https://www.codeproject.com/Articles/5335464/Open-source-SPL-that-can-execute-SQL-without-RDB	Open source SPL that can execute SQL without RDBSPL provides a syntax equivalent to the SQL standard and can perform rich and diverse data calculations You can directly execute SQL by using TXT CSV JSON XML XLS Web Service MongoDB Salesforce…as data tables	2022-06-21 05:58:00
金融	ニッセイ基礎研究所	医療機器の需給動向－生産、国内向け出荷、輸出入全てが年200億円超の医療機器は?	https://www.nli-research.co.jp/topics_detail1/id=71477?site=nli	目次ーはじめにー医療機器の生産・出荷と輸出入の概要ー医療機器類別のランキング国内向け出荷カテーテル、人工関節などが多い輸出内視鏡、分析機器などが多い生産内視鏡、カテーテル、透析装置が多い輸入人工関節、カテーテル、ステント、心臓ペースメーカ、コンタクトレンズなどが多いー医療機器一般的名称別の需給分類生産rarr国内向け出荷型安定的な生産が不可欠生産輸入rarr国内向け出荷型安定した生産と輸入により、国内需要を満たすことが求められる輸入rarr国内向け出荷型輸入先の複線化など安定的な輸入を目指すことが必要生産rarr輸出型高品質を維持して、他国への輸出拡大を図るべき生産rarr国内向け出荷輸出型安定生産による確実な供給が求められる生産輸入rarr国内向け出荷輸出型生産と輸出のバランスをとりつつ、需要を満たすことが必要ーおわりに私見日本の成長戦略の重要な分野として、医療機器が挙げられる。	2022-06-21 14:58:02
ニュース	@日本経済新聞 電子版	任天堂創業家も動く　異形の株主「ファミリーオフィス」 https://t.co/K8V75k6IMI	https://twitter.com/nikkei/statuses/1539119585169145857	異形	2022-06-21 05:34:39
ニュース	@日本経済新聞 電子版	みずほ、顧問に75歳定年制導入へ　歴代社長ら退任も https://t.co/W9kkyzVWpJ	https://twitter.com/nikkei/statuses/1539116324596633601	顧問	2022-06-21 05:21:41
ニュース	@日本経済新聞 電子版	渡辺喜美氏が政界引退　第1次安倍内閣で行革相 https://t.co/pIcP13Bn1W	https://twitter.com/nikkei/statuses/1539114739523010560	安倍内閣	2022-06-21 05:15:23
ニュース	@日本経済新聞 電子版	米ガソリン最高値圏　バイデン政権の対策に限界 https://t.co/PUgLJJ9hf3	https://twitter.com/nikkei/statuses/1539112201105117186	最高値	2022-06-21 05:05:18
海外ニュース	Japan Times latest articles	As China’s nuclear weapons multiply, U.S. and Japan work on deterrence	https://www.japantimes.co.jp/opinion/2022/06/21/commentary/world-commentary/china-us-nuclear-deterrence/	As China s nuclear weapons multiply U S and Japan work on deterrenceWashington together with Tokyo has been urging Beijing to halt its arms ambitions while at the same time boosting its nuclear umbrella in the region	2022-06-21 14:10:22
ニュース	BBC News - Home	Rugby League bans transgender athletes from top events	https://www.bbc.co.uk/sport/rugby-league/61875651?at_medium=RSS&at_campaign=KARANGA	involves	2022-06-21 05:55:14
ニュース	BBC News - Home	Fatboy Slim DJ sessions to help people's mental health	https://www.bbc.co.uk/news/health-61868870?at_medium=RSS&at_campaign=KARANGA	health	2022-06-21 05:23:14
ニュース	BBC News - Home	Mystery of Orkney bird tag tracked to London is solved	https://www.bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-61870711?at_medium=RSS&at_campaign=KARANGA	london	2022-06-21 05:20:56
ニュース	BBC News - Home	Wimbledon 2022: Periods, tennis and the tradition of whites at SW19	https://www.bbc.co.uk/sport/tennis/61785521?at_medium=RSS&at_campaign=KARANGA	Wimbledon Periods tennis and the tradition of whites at SWBBC Sport looks at the impact of periods on tennis players and asks whether the problem of wearing white at Wimbledon while menstruating should be discussed	2022-06-21 05:08:34
ニュース	BBC News - Home	Transfer rumours: Raphinha, Richarlison, Eriksen, De Jong, Evanilson, Hojberg, Antony McGinn	https://www.bbc.co.uk/sport/61777283?at_medium=RSS&at_campaign=KARANGA	Transfer rumours Raphinha Richarlison Eriksen De Jong Evanilson Hojberg Antony McGinnArsenal closing in on Raphinha from Leeds Chelsea join race for Everton s Richarlison Manchester United could make move for Arsenal target Martinez plus more	2022-06-21 05:51:38
ビジネス	ダイヤモンド・オンライン - 新着記事	ブラックロックの70人、世界の株主を代弁 - WSJ発	https://diamond.jp/articles/-/305160	株主	2022-06-21 14:06:00
北海道	北海道新聞	マルハニチロ、缶詰値上げ　魚肉ソーセージとゼリーも	https://www.hokkaido-np.co.jp/article/696170/	魚肉ソーセージ	2022-06-21 14:05:00
北海道	北海道新聞	行方不明当日に自宅方面に移動か　逮捕の男、遺体の喉骨折	https://www.hokkaido-np.co.jp/article/696169/	東京都文京区	2022-06-21 14:03:00
IT	週刊アスキー	シリアス展開だけじゃない！『AI: ソムニウムファイル ニルヴァーナ イニシアチブ』ミニゲームなどのお楽しみコンテンツを紹介	https://weekly.ascii.jp/elem/000/004/095/4095373/	紹介	2022-06-21 14:50:00
IT	週刊アスキー	海鮮ギッシリでお買い得！ 小僧寿し「キングスペシャル丼」平日限定で発売中	https://weekly.ascii.jp/elem/000/004/095/4095357/	小僧寿し	2022-06-21 14:30:00
マーケティング	AdverTimes	「夏は、吸い込むものだ。」マックシェイク カルピス4年ぶり刷新で新CM	https://www.advertimes.com/20220621/article387314/	日本マクドナルド	2022-06-21 05:15:59