Amazon Elastic File System – Production-Ready in Three Regions | Amazon Web Services
AWS News Blog Amazon Elastic File System – Production-Ready in Three Regions The portfolio of AWS storage products has grown increasingly rich and diverse over time. Amazon S3 started out with a single storage class and has grown to include storage classes for regular, infrequently accessed, and archived objects. Similarly, Amazon Elastic Block Store (Amazon EBS) began with a single volume type an
ã€æ–°æ©Ÿèƒ½ã€‘Amazon Elastic File System (Amazon EFS)ãŒã¤ã„ã«GA (一般利用å¯èƒ½)ã«ï¼ | DevelopersIO
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SSDã«ã—ãŸã®ã§I/Oスケジューラを noop ã«å¤‰æ›´ã—ã¦ã¿ãŸ - ablog
PC ã® HDD ã‚’ SSD ã«å¤‰æ›´ã—ãŸã®ã§ã€I/Oスケジューラを noop ã«å¤‰æ›´ã—ã¦ã¿ãŸã€‚ SSD 㯠HDD ã®ã‚ˆã†ã«ã‚·ãƒ¼ã‚¯ï¼ˆç›®çš„ã®ãƒ¬ã‚³ãƒ¼ãƒ‰ãŒè¨˜æ†¶ã•ã‚ŒãŸã‚·ãƒªãƒ³ãƒ€ã«ãƒ˜ãƒƒãƒ‰ã‚’移動）ã—ãŸã‚Šã€ã‚µãƒ¼ãƒï¼ˆç›®çš„ã®ã‚»ã‚¯ã‚¿ã®å…ˆé ãŒãƒ˜ãƒƒãƒ‰ã®ä½ç½®ã«æ¥ã‚‹ã®ã‚’å¾…ã¤ï¼‰ã—ãŸã‚Šã€ç‰©ç†çš„ãªå‹•ãã¯ãªã„。ãªã®ã§ã€OSã®I/Oスケジューラã§ã‚½ãƒ¼ãƒˆãªã‚“ã‹ã›ãšã«I/Oリクエストを渡ã—ã¦ãã‚ŒãŸã»ã†ãŒé€Ÿã„ã¨ã¨ã„ã†è©±ã ã¨æ€ã†ã€‚ ç°¡å˜ã« noop ãŒé€Ÿã„ã“ã¨ã‚’検証ã—ãŸä¸Šã§ã€noop ã«å¤‰æ›´ã—ãŸã€‚ cfq I/Oスケジューラを cfq ã«è¨å®šã™ã‚‹ [root@yazekats-linux queue]# echo cfq > /sys/block/sda/queue/scheduler [root@yazekats-linux queue]# cat /sys/block/sda/queue/scheduler noop deadlin
Streaming File Synchronization
Our users love Dropbox for many reasons, sync performance being chief among them. We’re going to look at a recent performance improvement called Streaming Sync which can improve sync latency by up to 2x. Prior to Streaming Sync, file synchronization was partitioned into two phases: upload and download. The entire file must be uploaded to our servers and committed to our databases before any other
Announcing Unco - undo changes to files made by any command
Being sick of myself occasionally wiping off the changes made to files by running wrong commands, I have started writing a program called "Unco" (pronunciation: an-ko) - a command that records the changes to the file system, and let the users undo the changes afterwards if necessary. Unlike existing command-level solutions like aliasing rm to trash-cli, Unco is designed to be capable of undoing ch
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ãƒãƒ¼ãƒˆãƒ“ーツ最年長エンジニアã®æ»æ¾¤ã§ã™ã€‚以å‰ã€å¼Šç¤¾CTOã«ã‚·ãƒ‹ã‚¢ãŠã£ã•ã‚“エンジニアã‹ã‚‰è‹¥æ‰‹ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã«å‘ã‘ã¦ä½•ã‹æ›¸ã„ã¦ãã‚Œã¨è¨€ã‚ã‚ŒãŸæ°—ãŒã—ãŸã®ã§ã€ã‚¢ãƒˆãƒŸãƒƒã‚¯ï¼ˆatomic）ãªãƒ•ã‚¡ã‚¤ãƒ«æ“作ã«ã¤ã„ã¦3ç·¨ã«åˆ†ã‘ã¦ç´¹ä»‹ã—ã¾ã™ã€‚ã“ã®å†…容ã¯å¼Šç¤¾ã®ç¤¾å†…勉強会ã§è©±ã—ãŸå†…容をã¾ã¨ã‚ç›´ã—ãŸã‚‚ã®ã§ã™ã€‚ ãã®ãƒ•ã‚¡ã‚¤ãƒ«ã€å®‰å…¨ã«æ›´æ–°ã§ãã¦ã„ã¾ã™ã‹ï¼Ÿï¼ˆã‚¢ãƒˆãƒŸãƒƒã‚¯ãªãƒ•ã‚¡ã‚¤ãƒ«æ“作：å‰ç·¨ï¼‰â†ä»Šå›ž ãã®ãƒ•ã‚¡ã‚¤ãƒ«ã€å®‰å…¨ã«ä½œæˆã§ãã¦ã„ã¾ã™ã‹ï¼Ÿï¼ˆã‚¢ãƒˆãƒŸãƒƒã‚¯ãªãƒ•ã‚¡ã‚¤ãƒ«æ“作：ä¸ç·¨ï¼‰ ãã®ãƒ•ã‚¡ã‚¤ãƒ«ã€å®‰å…¨ã«ãƒãƒƒã‚¯ã§ãã¦ã„ã¾ã™ã‹ï¼Ÿï¼ˆã‚¢ãƒˆãƒŸãƒƒã‚¯ãªãƒ•ã‚¡ã‚¤ãƒ«æ“作：後編） 今回ã¯ã€Œã¿ãªã•ã‚“ã€å®‰å…¨ã«ãƒ•ã‚¡ã‚¤ãƒ«ã®æ›´æ–°ãŒã§ãã¦ã„ã¾ã™ã‹ï¼Ÿã€ã¨ã„ã†ã“ã¨ã«ã¤ã„ã¦ã€è€ƒãˆã¦ã¿ã¾ã—ょã†ã€‚ ã‚ãªãŸã¯ã‚るサーãƒä¸Šã®ãƒ•ã‚¡ã‚¤ãƒ«ã®æ›´æ–°ã‚’ä¾é ¼ã•ã‚Œã€ã‚‚らã£ãŸãƒ•ã‚¡ã‚¤ãƒ«ã‚’サーãƒä¸Šã§ã‚³ãƒ”ーã—ã¦ä¸Šæ›¸ãã—ã¾ã—ãŸã€‚ã—ã°ã‚‰ãã—ã¦ã€ãƒ‡ãƒ¼ã‚¿ã«ç•°å¸¸ãŒç™ºç”Ÿã—ãŸã®ã§èª¿ã¹ã¦æ¬²ã—ã„ã¨è¨€ã‚ã‚Œã¾ã—ãŸã€‚ã•ã¦ã€ä½•ãŒèµ·ã
ext3ファイルシステムã¨ãƒ•ã‚¡ã‚¤ãƒ«ã®å‰Šé™¤ãƒ»å¾©å…ƒã«ã¤ã„ã¦
人間ã¨ã‚¦ã‚§ãƒ–ã®æœªæ¥ï¼ˆæ—§ï¼‰ 「ウェブã®æ´å²ã¯äººé¡žã®æ´å²ã®ç¹°ã‚Šè¿”ã—ã€ã¨ã„ã†è¦³ç‚¹ã‹ã‚‰è‰²ã€…勉強ã—ã¦ã„ã¾ã™ã€‚2014å¹´ã¾ã§ã®äººé–“ã¨ã‚¦ã‚§ãƒ–ã®æœªæ¥ã®æ—§ãƒ–ãƒã‚°ã§ã™ã€‚ ç ”ç©¶ã®ä¸€ç’°ã§ext3ファイルシステムã®ãƒ•ã‚¡ã‚¤ãƒ«ç®¡ç†æ–¹æ³•ã‚„ã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚’削除ã—ãŸæ™‚ã®å¾©å…ƒã«ã¤ã„ã¦è‰²ã€…調ã¹ãŸã®ã§ã€ãれを忘れãªã„よã†ã«è¨˜äº‹ã«ã—ã¦ãŠã“ã†ã¨æ€ã„ã¾ã™ã€‚ ã¯ã˜ã‚㫠今回ã¯ext3ファイルシステムã«ã¤ã„ã¦èª¿æŸ»ã—ã¦ã¿ã¾ã—ãŸã€‚僕ã¯Linuxã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’扱ã†å‰æã®ç ”究をã—ã¦ã„ã‚‹ã—ã€å¤§è¦æ¨¡ç’°å¢ƒã§ã®ãƒ•ã‚¡ã‚¤ãƒ«ã®å‡¦ç†ã¯ã¨ã¦ã‚‚é‡è¦ã ã¨æ€ã£ã¦ã„ã¾ã™ã€‚ ã¾ãŸã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã«ã¤ã„ã¦ç†è§£ã‚’æ·±ã‚ã¦ãŠã事ã§ã€ä»Šå¾Œæ–°ãŸãªãƒã‚¿ã«ãªã‚‰ãªã„ã‹ç‰ã‚‚考ãˆã¦ã„ã¾ã™ã€‚ç¾åœ¨ã¯ext4ã‚„Btrfsç‰ã®èª¿æŸ»ãŒé€²ã‚“ã§ã„ã¾ã™ãŒã€æ”¹ã‚ã¦åŸºæœ¬ã«æˆ»ã£ã¦ext3ã«ã¤ã„ã¦èª¿æŸ»ã—ã¾ã—ãŸã€‚ ã¾ãšã¯ã€åˆ†ã‹ã‚Šã‚„ã™ã„よã†ã«ext3ファイルシステムã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’削除ã—ãŸå ´åˆã«ã€ã©ã®ã‚ˆã†ã«ãƒ•ã‚¡ã‚¤ãƒ«å¾©å…ƒãŒã§ãã‚‹ã®ã‹ã‚’
Sheepdog Project
Overview Sheepdog is a distributed storage system for KVM. It provides highly available block level storage volumes that can be attached to KVM virtual machines. Sheepdog supports advanced volume management features such as snapshot, cloning, and thin provisioning. sheep is a disk I/O management process, dog is a cluster management process, and KVM is patched virtual machine monitor
『ã€ç ”究レãƒãƒ¼ãƒˆæŠœç²‹ã€‘P2P Replicated File Store ã®å®Ÿè£…ã€
上記表ã®é€šã‚Šã€ä»®æƒ³ãƒŽãƒ¼ãƒ‰ã«ã‚ˆã‚Šåã‚Šã¯å°‘ãªããªã£ãŸãŒã€ä»®æƒ³ãƒŽãƒ¼ãƒ‰ã®å°Žå…¥ã«ã‚ˆã‚Šä»¥ä¸‹ã®å•é¡ŒãŒç™ºç”Ÿã™ã‚‹ã€‚ ãƒŽãƒ¼ãƒ‰è¿½åŠ æ™‚ã®ãƒ‡ãƒ¼ã‚¿ã‚³ãƒ”ーã®å±€æ‰€æ€§ç‰©ç†ãƒŽãƒ¼ãƒ‰ã ã‘ã§ã‚³ãƒ³ã‚·ã‚¹ãƒ†ãƒ³ãƒˆãƒãƒƒã‚·ãƒ³ã‚°ã‚’è¡Œã†å ´åˆã€ãƒŽãƒ¼ãƒ‰ã‚’è¿½åŠ ã—ãŸéš›ã¯æ–°ãƒŽãƒ¼ãƒ‰ãŒé…ç½®ã•ã‚Œã‚‹å ´æ‰€ã®æ¬¡ã«ä½ç½®ã™ã‚‹ãƒŽãƒ¼ãƒ‰ã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ã‚’コピーã™ã‚‹ã ã‘ã§ã‚ˆã„ã¨ã„ã†ç‰¹å¾´ãŒã‚る。 ã—ã‹ã—仮想ノードを導入ã™ã‚‹ã¨ä»®æƒ³çš„ãªãƒŽãƒ¼ãƒ‰ãŒå…¥ã‚Šæ··ã˜ã‚‹å½¢ã§é…ç½®ã•ã‚Œã‚‹ã®ã§ã€çµæžœçš„ã«å…¨ã¦ã®ç‰©ç†ãƒŽãƒ¼ãƒ‰ã«ãƒ‡ãƒ¼ã‚¿ã‚³ãƒ”ーãŒç™ºç”Ÿã™ã‚‹ã€‚ ãã®ãŸã‚ã€P2P Replicated File Storeã§ã¯ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã§ã®ãƒŽãƒ¼ãƒ‰è¿½åŠ 機能を諦ã‚ã€ãƒŽãƒ¼ãƒ‰è¿½åŠ 時ã«ã¯å†èµ·å‹•ã«ã‚ˆã‚‹å†é…ç½®ã«çµžã‚‹ã“ã¨ã«ã—ãŸã€‚ è€éšœå®³æ€§ レプリケーション P2P Replicated File Store ã§ã¯ã€ãƒ•ã‚¡ã‚¤ãƒ«ã®æ ¼ç´æ™‚ã«ãƒŽãƒ¼ãƒ‰å´ã§ãƒ¬ãƒ—リケーションを自動的ã«è¡Œã†ã€‚ 上図ã®ã‚ˆã†ã«ã‚·ãƒ¼ã‚±ãƒ³ã‚·ãƒ£ãƒ«ã«ãƒ•ã‚¡ã‚¤ãƒ«ãƒ¬ãƒ—リケーションを行ã†ã€‚ éžåŒæœŸã§ã®
jQuery File Upload Demo
jQuery File Upload Demo File Upload widget with multiple file selection, drag&drop support, progress bars, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads and client-side image resizing. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads. Pintura
HDFSã¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚µãƒ¼ãƒãƒ¼ã«ä½¿ã†ã‚‚ã®ã˜ã‚ƒãªã„よ
Hadoop（0.22以å‰ã‚„1.0.0）ã®HDFSã¯NameNodeãŒSPOF（å˜ä¸€éšœå®³ç‚¹ï¼‰ãªã®ã§ã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚µãƒ¼ãƒãƒ¼ã‚„データã®â€œãƒãƒƒã‚¯ã‚¢ãƒƒãƒ—â€ã«ã¯å‘ã‹ãªã„ã¨ã„ã†è©±ã§ã™ã€‚ HDFS上ã«æ§‹ç¯‰ã•ã‚Œã¦ã„ã‚‹HBaseã®å ´åˆã€ï¼ˆHBase自身ã«ã¯SPOFã¯ç„¡ã„ã‘ã‚Œã©ã‚‚）HDFSã«SPOFãŒã‚ã‚‹ã®ã§ã€NameNodeã¯å†—長化ã—ãŸæ–¹ãŒè‰¯ã„よã†ã§ã™ã€‚ 冗長化ã«ã¯ä»¥ä¸‹ã®ã‚ˆã†ãªä»•çµ„ã¿ãŒè€ƒãˆã‚‰ã‚Œã¦ã„るよã†ã§ã™ã€‚ 続ãã‚’èªã‚€
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Shared File Storage - Amazon Elastic File System (EFS) - AWS
420682 – In Indigo, Open File dialog only appears once in OS X Mavericks (10.9)
Google Code Archive - Long-term storage for Google Code Project Hosting.
Google Code Archive - Long-term storage for Google Code Project Hosting.
Charming Python: Functional programming in Python, Part 3
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IBM Developer
GitHub - cloudhead/node-static: rfc 2616 compliant HTTP static-file server module, with built-in caching.
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