Hadoop Operations #cwt2013
#cwt2013 Clouderaã®å°æž— @d1ce_ ã«ã‚ˆã‚‹Hadoop構築・é‹ç”¨ã®ãƒã‚¤ãƒ³ãƒˆã«ã¤ã„ã¦ã®ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’公開ã—ã¾ã—ãŸã€‚2013年度版ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢é¸å®šã€HA構æˆã®è€ƒãˆæ–¹ã‹ã‚‰ã€å®Ÿéš›ã«ã‚µãƒãƒ¼ãƒˆã§ç›´é¢ã—ãŸäº‹ä¾‹ã«ã¤ã„ã¦ã‚‚紹介ã—ã¦ã„ã¾ã™Read less
ZooKeeperã«ã‚ˆã‚‹åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ 管ç†
ZooKeeperã¯ã€Apacheソフトウェア財団ã®ã‚ªãƒ¼ãƒ—ンソースプãƒã‚¸ã‚§ã‚¯ãƒˆã®1ã¤ã§ã€å¤§è¦æ¨¡åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®å”調動作を実ç¾ã™ã‚‹ãƒ„ール。分散システムãŒå”調動作ã™ã‚‹ãŸã‚ã«å¿…è¦ãªã‚³ã‚¢æ©Ÿèƒ½ã‚’æä¾›ã™ã‚‹ã“ã¨ã§ã€é–‹ç™ºè€…ã®è² è·ã‚’大幅ã«ä½Žæ¸›ã—ã¾ã™ã€‚Hiveã‚„Hadoopã®æ–°ã—ã„スケジューラã§ã‚ã‚‹YARNãªã©ã€å¤šãã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã€ä¼æ¥ã€çµ„ç¹”ã§åˆ©ç”¨ã•ã‚Œã¤ã¤ã‚ã‚Šã¾ã™ã€‚分散システムã®å”調動作ã«é ã‚’æ‚©ã¾ã›ã¦ã„ãŸå¤šãã®é–‹ç™ºè€…ã«ã¨ã£ã¦ç¦éŸ³ã¨ãªã‚‹ã€ZooKeeperを使ã£ãŸåŠ¹æžœçš„ãªåˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®ç®¡ç†æ‰‹æ³•ã€ã‚¹ãƒžãƒ¼ãƒˆãªå•é¡Œè§£æ±ºæ³•ã‚’æ示ã—ã¾ã™ã€‚ ã¾ãˆãŒã I部 ZooKeeperã®ã‚³ãƒ³ã‚»ãƒ—トã¨åŸºæœ¬ 1ç« ã¯ã˜ã‚ã« 1.1 ZooKeeperã®ä½¿å‘½ 1.1.1 ã“ã‚Œã¾ã§ZooKeeperãªã—ã§ã©ã†ã‚„ã£ã¦ããŸã®ã‹ï¼Ÿ 1.1.2 ZooKeeperãŒã—ã¦ãã‚Œãªã„ã“㨠1.1.3 Apacheプãƒã‚¸ã‚§ã‚¯ãƒˆ 1.1.4 ZooKeeper
ZooKeeper
Read it now on the O’Reilly learning platform with a 10-day free trial. O’Reilly members get unlimited access to books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers. Building distributed applications is difficult enough without having to coordinate the actions that make them work. This practical guide shows how Apache ZooKeeper helps you manage dis
ZooKeeper vs. Doozer vs. Etcd | devo.ps
While devo.ps is fast approaching a public release, the team has been dealing with an increasingly complex infrastructure. We more recently faced an interesting issue; how do you share configuration across a cluster of servers? More importantly, how do you do so in a resilient, secure, easily deployable and speedy fashion? That’s what got us to evaluate some of the options available out there; Zoo
GitHub - etcd-io/etcd: Distributed reliable key-value store for the most critical data of a distributed system
Note: The main branch may be in an unstable or even broken state during development. For stable versions, see releases. etcd is a distributed reliable key-value store for the most critical data of a distributed system, with a focus on being: Simple: well-defined, user-facing API (gRPC) Secure: automatic TLS with optional client cert authentication Fast: benchmarked 10,000 writes/sec Reliable: prop
Dynamic Reconfiguration of Apache ZooKeeper
ZooKeeper allows for dynamic reconfiguration of servers in its ensemble. Manual reconfiguration is problematic as it requires changing the configuration, restarting servers, and can result in data loss. The presented solution allows ZooKeeper to reconfigure itself automatically through a speculative reconfiguration approach. It commits the reconfiguration once quorums of both the old and new ensem
ç±³NetflixãŒã‚ªãƒ¼ãƒ—ンソースãƒãƒ¼ã‚¿ãƒ«ã‚’é–‹è¨ã€ZooKeeperライブラリを公開 | OSDN Magazine
æ˜ ç”»ã‚„ãƒ‰ãƒ©ãƒžã®ãƒ¬ãƒ³ã‚¿ãƒ«/ストリーミングを事æ¥ã¨ã™ã‚‹ç±³Netflixã¯11月29æ—¥ã€è‡ªç¤¾ã®ã‚ªãƒ¼ãƒ—ンソース活動を集ç©ã—ãŸãƒãƒ¼ã‚¿ãƒ«ã®é–‹è¨ã‚’を発表ã—ãŸã€‚åŒãƒãƒ¼ã‚¿ãƒ«ã§ã¯ã€ã€ŒApache ZooKeeperã€ãƒ©ã‚¤ãƒ–ラリã®ã€ŒCuratorã€ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆãŒå…¬é–‹ã•ã‚Œã¦ã„る。 ãƒãƒ¼ã‚¿ãƒ«å†…ã§æœ€åˆã«å…¬é–‹ã•ã‚ŒãŸãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¨ãªã‚‹Curatorã¯ã€NetflixãŒé–‹ç™ºã—ã€ç¤¾å†…ã§åˆ©ç”¨ã—ã¦ã„ã‚‹ZooKeeperライブラリ。ZooKeeprã¯åˆ†æ•£ã‚¢ãƒ—リケーションå‘ã‘ã®é«˜æ€§èƒ½ã‚³ãƒ¼ãƒ‡ã‚£ãƒãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒ“スã§ã€Javaã§å®Ÿè£…ã•ã‚ŒãŸã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆãŒæä¾›ã•ã‚Œã¦ã„る。ã ãŒNetflixã®é–‹ç™ºè€…ã¯ã“ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«ã¤ã„ã¦ã€ã€Œæ£ã—ã使用ã™ã‚‹ã“ã¨ãŒé›£ã—ãã€ã‚¨ãƒ©ãƒ¼ãŒå¤šã„ã€ãªã©å•é¡Œç‚¹ã‚’ã‚ã’ã¦ã„る。 Curatorã¯ã€ZooKeeperã«ãƒãƒ³ãƒ‰ãƒ«ã•ã‚Œã¦ã„る一部ã®ã‚¯ãƒ©ã‚¹ã‚’ç½®ãæ›ãˆã‚‹curator-clientã€ZooKeeperã®åˆ©ç”¨ã‚’ç°¡ç´ åŒ–ã™ã‚‹ãƒã‚¤ãƒ¬
Twitterã€åˆ†æ•£ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 処ç†ã‚·ã‚¹ãƒ†ãƒ 「Stormã€å…¬é–‹ | gihyo.jp
2011å¹´9月18æ—¥ã€Twitterã¯åˆ†æ•£ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 処ç†ã‚·ã‚¹ãƒ†ãƒ 「Stormã€ã‚’オープンソースã§å…¬é–‹ã—ã¾ã—ãŸã€‚よりæ£ç¢ºã«è¨€ã†ã¨ã€2011å¹´7月ã«è²·åŽã•ã‚ŒãŸBackTypeã®ãƒ¡ãƒ³ãƒãƒ¼ãŒè²·åŽä»¥å‰ã‚ˆã‚Šé–‹ç™ºã‚’進ã‚ã¦ã„ãŸã‚‚ã®ã§ã™ã€‚BackTypeã¯Twitterã®ã¤ã¶ã‚„ãを解æžã™ã‚‹ã‚·ã‚¹ãƒ†ãƒ を開発ã—ã¦ã„ãŸã‚¹ã‚¿ãƒ¼ãƒˆã‚¢ãƒƒãƒ—ä¼æ¥ã§Hadoopã®ãƒ˜ãƒ“ーユーザã§ã‚‚ã‚ã‚Šã¾ã—ãŸãŒã€ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 性ã®å•é¡Œç‚¹ã‚’解消ã™ã¹ãStormã®é–‹ç™ºã«è‡³ã£ãŸã‚ˆã†ã§ã™ã€‚ã¡ãªã¿ã«åŒã˜ã‚ªãƒ¼ãƒ—ンソースã®åˆ†æ•£ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ 処ç†ã‚·ã‚¹ãƒ†ãƒ ã¨ã—ã¦ç±³Yahoo! ãŒã€ŒS4ã€ã‚’公開ã—ã¦ã„ã¾ã™ãŒã€Stormã¯ãƒ‡ãƒ¼ã‚¿ã‚’処ç†ã™ã‚‹ä¿¡é ¼æ€§ã®é«˜ã•ã‚„APIã®ã‚·ãƒ³ãƒ—ルã•ã«é•ã„ãŒã‚ã‚Šã¾ã™ã€‚ Stormã®ã‚¢ãƒ¼ã‚テクãƒãƒ£ã¯Hadoopã¨ä¼¼é€šã£ã¦ãŠã‚Šã€ã‚¯ãƒ©ã‚¹ã‚¿ã¯Master-Workerパターンã«åŸºã¥ã„ã¦ã„ã¾ã™ã€‚Masterノードã«ã¯ã€ŒNimbusâ ã€â ã€Workerノードã«ã¯
http://www.osrg.net/accord/
Accord: A high-performance coordination service for write-intensive workloads Overview Accord is a high-performance coordination service like Apache ZooKeeper that uses Corosync Cluster Engine as a total-order messaging infrastructure. It features: Accord is a distributed, transactional, and fully-replicated (No SPoF) Key-Value Store with strong consistency. Accord can be scale-out up to tens of n
インフラエンジニアã®ãŸã‚ã®Cassandraæƒ…å ± ZooKeeperãã®ï¼’：So-net Developer Blog：So-netブãƒã‚°
ZooKeeperã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«ã¤ã„ã¦ã¯ã€ä»¥ä¸‹ã®URLã«ç°¡å˜ãªãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ãŒ ã‚ã‚Šã¾ã™ã€‚ http://hadoop.apache.org/zookeeper/docs/r3.1.1/zookeeperTutorial.html 今回ã¯ã€ã“ã“ã«è¼‰ã£ã¦ã„るサンプルを使ã£ã¦ã€ã‚«ã‚¦ãƒ³ã‚¿ãƒ¼ã‚’実ç¾ã—ã¦ã¿ã¾ã™ã€‚ ZooKeeperã¯znodeã¨å‘¼ã°ã‚Œã‚‹ãƒ„ãƒªãƒ¼æ§‹é€ ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€ ã‚’æŒã£ã¦ã„ã¾ã™ã€‚znodeã®ãã‚Œãžã‚Œã« 対応ã™ã‚‹ã‚ªãƒ–ジェクト（ã¾ãŸã¯å€¤ï¼‰ã‚’ä¿å˜ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚znodeã«ã¯ã€ç™»éŒ²ã€æ›´æ–°æ™‚㫠一æ„ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·ãŒä»˜ä¸Žã•ã‚Œã‚‹ã®ã§ã€ã“れを使ã†ã“ã¨ã§ã€CASæ“作ãŒå®Ÿç¾ã§ããã†ã§ã™ã€‚ ãã“ã§ã€ã€Œ/app1/counterã€ã¨ã„ã†znodeを作æˆã—ã¦ã€ã“ã‚Œã«ã‚«ã‚¦ãƒ³ã‚¿ãƒ¼ç”¨ã®æ•°å€¤ã‚’代入ã€å‚ç…§ ã™ã‚‹ã‚ˆã†ã«ã—ã¾ã™ã€‚ カウントアップ時ã«ã¯ã€CASæ“作を行ã£ã¦ã„ã‚‹ã®ã§ã€è¤‡æ•°ãƒ—ãƒã‚»ã‚¹ã‹ã‚‰ã®åŒæ™‚書込ã¿æ™‚ã§ã‚‚値
ZooKeeper/ServiceLatencyOverview - Hadoop Wiki
ZooKeeper service latencies under various loads & configurations Author: Patrick Hunt (follow me on twitter) The intent of this document is to examine the performance of a typical ZooKeeper service while varying the load and available computing power. This is not an exhaustive test but meant to shed some light on the amount of load ZK can support for various (lower powered) hardware configurations
ヒマをã¿ã¤ã‘ã¦Web開発 | - Page not found
ZookeeperãŒã€ã‘ã£ã“ã†ç‹¬è‡ªãƒ«ãƒ¼ãƒ«å¤šã„ã®ã§ã€å¿˜ã‚Œãªã„よã†ã«ãƒ¡ãƒ¢ã€‚英語ã®ãƒ‰ã‚ュメントèªã‚“ã§ç†è§£ã—ã¦ã‚‹ã‹ã‚‰ã€é–“é•ã£ã¦ã‚‹å¯èƒ½æ€§ã‚り。ã¡ãªã¿ã«ã€.NETドライãƒã§ã®å ´åˆã§ã™ã€‚ Zookeeperクラスã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã¯ã€ä½•åº¦ã‚‚使ã„ã¾ã‚ã™ã“ã¨ãŒå¯èƒ½ Zookeeperクラスã®ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã«æ¸¡ã™ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚¿ã‚¤ãƒ アウト値ã¯ã€ã‚ãã¾ã§ã‚‚一回ã®é€šä¿¡ã«ãŠã‘るタイムアウト値ã§ã‚ã£ã¦ã€Zookeeperインスタンスをタイムアウト値以上ã®æ™‚é–“ä¿æŒã—ã¦ã‚‚ã€ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãŒä½¿ãˆãªããªã‚‹ã“ã¨ã¯ãªã„ Zookeeperクラスã®ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã«æ¸¡ã™ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚¿ã‚¤ãƒ アウト値ã¯ã€è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã®tickTime値ã®ï¼’å€ä»¥ä¸Šã€ï¼’ï¼å€ä»¥ä¸‹ã§ãªã„ã¨ã„ã‘ãªã„ Zookeeperクラスã®ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã«æ¸¡ã™Watcherã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®ã‚¦ã‚©ãƒƒãƒãƒ£ãƒ¼ã§ã‚ã‚Šã€æŽ¥ç¶šçŠ¶æ…‹ãŒå¤‰ã‚る度ã«ã‚¤ãƒ™ãƒ³ãƒˆãŒèµ·ã“ã‚‹ã€Zookeeperインスタンス生æˆæ™‚
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ZooKeeper/ClusterMembership - Hadoop Wiki
Google Code Archive - Long-term storage for Google Code Project Hosting.
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