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ButterflyFish id:ButterflyFish

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Parquet
Parquet ã¨ Delta Lakeã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®Â Delta LakeÂ ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¯ã€Parquet å½¢å¼ã«åŸºã¥ã„ã¦æ§‹ç¯‰ã•ã‚Œã€ã•ã¾ã–ã¾ãªæ©Ÿèƒ½ã®è¿½åŠ ã«ã‚ˆã‚Šæ‹¡å¼µã•ã‚Œã¦ã„ã¾ã™ã€‚è¿½åŠ æ©Ÿèƒ½ã«ã¯ã€ã‚¯ãƒ©ã‚¦ãƒ‰ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã® ACID ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã€ã‚¿ã‚¤ãƒ ãƒˆãƒ©ãƒ™ãƒ«ã€ã‚¹ã‚ãƒ¼ãƒžã®æ‹¡å¼µã€ã‚·ãƒ³ãƒ—ãƒ«ãª DML ã‚³ãƒžãƒ³ãƒ‰ï¼ˆCREATEã€UPDATEã€INSERTã€DELETEã€MERGEï¼‰ãªã©ãŒã‚ã‚Šã¾ã™ã€‚Delta Lake ã¯ã€é †åºä»˜ã‘ã‚‰ã‚ŒãŸãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ãƒã‚°ã‚’ä½¿ç”¨ã—ã¦ã“ã‚Œã‚‰ã®é‡è¦ãªæ©Ÿèƒ½ã®å¤šãã‚’å®Ÿè£…ã—ã¦ã„ã¾ã™ã€‚ã“ã‚Œã«ã‚ˆã‚Šã€ã‚¯ãƒ©ã‚¦ãƒ‰ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ä¸Šã«ãŠã‘ã‚‹ãƒ‡ãƒ¼ã‚¿ã‚¦ã‚§ã‚¢ãƒã‚¦ã‚¹æ©Ÿèƒ½ãŒå¯èƒ½ã«ãªã‚Šã¾ã™ã€‚è©³ç´°ã¯ã€ã“ã¡ã‚‰ã®å‹•ç”»Â Delta Lake è©³ç´°ç·¨ï¼šãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ãƒã‚°ã‚’ã”è¦§ãã ã•ã„ã€‚
ButterflyFish 2023/01/22
apache

csv

data
ãƒªãƒ³ã‚¯
2020å¹´7æœˆ31æ—¥ã€€æ™‚ä¾¡ç·é¡ã¯200å„„ãƒ‰ãƒ« â€•Apache Software FoundationãŒ2020å¹´åº¦æ´»å‹•ãƒ¬ãƒãƒ¼ãƒˆã‚’å…¬é–‹ | gihyo.jp
Linux Daily Topics 2020å¹´7æœˆ31æ—¥æ™‚ä¾¡ç·é¡ã¯200å„„ãƒ‰ãƒ« â€•Apache Software FoundationãŒ2020å¹´åº¦æ´»å‹•ãƒ¬ãƒãƒ¼ãƒˆã‚’å…¬é–‹ Apache Software Foundationï¼ˆASFï¼‰ã¯7æœˆ29æ—¥ï¼ˆç±³å›½æ™‚é–“â ï¼‰â ã€2020å¹´åº¦ï¼ˆ2019å¹´5æœˆ1æ—¥ï½ž2020å¹´4æœˆ30æ—¥ï¼‰ã®æ´»å‹•å†…å®¹ã‚’ãƒ¬ãƒãƒ¼ãƒˆã¨ã—ã¦å…¬é–‹ã—ãŸã€‚åŒãƒ¬ãƒãƒ¼ãƒˆã«ã‚ˆã‚Œã°ASFãŒã‚µãƒãƒ¼ãƒˆã™ã‚‹350ä»¥ä¸Šã‚‚ã®ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆ/ã‚¤ãƒ‹ã‚·ã‚¢ãƒ†ã‚£ãƒ–ã®ä¾¡å€¤ã¯ç´„200å„„ãƒ‰ãƒ«ï¼ˆ2å…†8653å„„å††ï¼‰ä»¥ä¸Šã«ç›¸å½“ã™ã‚‹ã¨ã„ã†ã€‚ The ApacheÂ® Software Foundation Announces Annual Report for 2020 Fiscal Year: The Apache Software Foundation Blog 2020å¹´åº¦ã®ãƒã‚¤ãƒ©ã‚¤ãƒˆã¨ã—ã¦ç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ãŠã‚‚ãªãƒˆãƒ”ãƒƒã‚¯
ButterflyFish 2020/08/05
apache

linux
ãƒªãƒ³ã‚¯
ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®æ©Ÿæ¢°å¦ç¿’ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã¾ã¨ã‚ - ãŸã‘ãžã†ç€•æ»ãƒ–ãƒã‚°
PredictionIOã¯æ©Ÿæ¢°å¦ç¿’ã‚’ä½¿ç”¨ã—ãŸã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’é–‹ç™ºãƒ»é‹ç”¨ã™ã‚‹ãŸã‚ã®ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã‚’æä¾›ã™ã‚‹ãŸã‚ã®OSSã§ã™ãŒã€ä¸–ã®ä¸ã«ã¯ä»–ã«ã‚‚åŒã˜é ˜åŸŸã®OSSãŒå˜åœ¨ã—ã¾ã™ã€‚PredictionIOå«ã‚ã¦å„ãƒ—ãƒãƒ€ã‚¯ãƒˆã®ç‰¹å¾´ã‚’ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸï¼ˆPredictionIOä»¥å¤–ã¯ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã‚„ã‚½ãƒ¼ã‚¹ã‚’ãƒãƒ©è¦‹ã—ã¦æ›¸ã„ã¦ã„ã‚‹ã®ã§è¦‹è½ã¨ã—ã¦ã„ã‚‹ã“ã¨ãªã©ã‚ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã”å®¹èµ¦ã„ãŸã ã‘ã‚Œã°ã¨æ€ã„ã¾ã™ï¼‰ã€‚ PredictionIO github.com Apache Software Foundationã§é–‹ç™ºã•ã‚Œã¦ã„ã‚‹æ©Ÿæ¢°å¦ç¿’ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã§ã™ã€‚åŸºæœ¬çš„ã«Sparkä¸Šã§å‹•ä½œã™ã‚‹æ©Ÿæ¢°å¦ç¿’ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’ã‚¿ãƒ¼ã‚²ãƒƒãƒˆã«ã—ã¦ã„ã¾ã™ãŒã€æœ€è¿‘ã¯Pythonå¯¾å¿œãªã©ã‚‚è¡Œã‚ã‚Œã¦ã„ã¾ã™ã€‚ä½œæˆã—ãŸãƒžã‚¤ã‚¯ãƒã‚µãƒ¼ãƒ“ã‚¹ã¯Sprayãƒ™ãƒ¼ã‚¹ã®APIã‚µãƒ¼ãƒã¨ã—ã¦èµ·å‹•ã™ã‚‹ã“ã¨ãŒå¯èƒ½ã§ã™ã€‚ç”¨é€”ã«å¿œã˜ãŸãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆãŒå¤šæ•°ç”¨æ„ã•ã‚Œã¦ãŠã‚Šã€ãã‚Œã‚’ã‚«
ButterflyFish 2017/10/29
apache

ã¾ã¨ã‚

machinelearning

scala
ãƒªãƒ³ã‚¯
apacheã¨nginx â€“ å¿˜ã‚Œã‚‹ãŸã‚ã«è¨˜ã™
ä¸»ã«ã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹2014 Tokyo/Spring Apacheã‚³ãƒŸãƒƒã‚¿ãƒ¼ãŒè¦‹ãŸ Apache vs nginx http://openstandia.jp/pdf/140228_osc_seminar_ssof8.pdf ã‚ˆã‚Š webã‚µãƒ¼ãƒä»•çµ„ã¿ â€“ ã–ã£ãã‚Šãƒªã‚¯ã‚¨ã‚¹ãƒˆã«å¯¾ã—ã¦ã€ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚’è¿”å´ã™ã‚‹ apache â€“ ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£-ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã€ã‚¹ãƒ¬ãƒƒãƒ‰ã®å ´åˆã€1ã¤ã®ãƒ—ãƒã‚»ã‚¹ã¾ãŸã¯ã‚¹ãƒ¬ãƒƒãƒ‰ãŒã“ã‚Œã‚’å‡¦ç†ã™ã‚‹ã€‚ãã®ãŸã‚ã€1ã‚¢ã‚¯ã‚»ã‚¹ã‚’å‡¦ç†ã—ã¦ã„ã‚‹é–“ã¯ä»–ã®ã‚¢ã‚¯ã‚»ã‚¹ã‚’å‡¦ç†ã§ããšã€åŒæ™‚æŽ¥ç¶šæ•°åˆ†ã ã‘ãƒ—ãƒã‚»ã‚¹ã¾ãŸã¯ã‚¹ãƒ¬ãƒƒãƒ‰ãŒå¿…è¦ã¨ãªã‚‹ ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã®é•ã„ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¯ãƒ¡ãƒ¢ãƒªç©ºé–“ã‚’å€‹åˆ¥ã«æŒã¤ãŒã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã¯ãƒ¡ãƒ¢ãƒªç©ºé–“ã‚’å…±æœ‰ã™ã‚‹ ãƒ¡ãƒ¢ãƒªã®ä½¿ç”¨åŠ¹çŽ‡ãŒé«˜ãã€ãƒ—ãƒã‚»ã‚¹åˆ‡ã‚Šæ›¿ãˆæ™‚ã«ãƒ¡ãƒ¢ãƒªç©ºé–“ã®åˆ‡ã‚Šæ›¿ãˆãŒç™ºç”Ÿã—ãªã„ãŸã‚ã‚³ã‚¹ãƒˆãŒä½Žããªã‚‹ ãƒžãƒ«ãƒ
ButterflyFish 2015/03/23
apache

nginx

web
ãƒªãƒ³ã‚¯
ZooKeeperã«ã‚ˆã‚‹åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ç®¡ç†
ZooKeeperã¯ã€Apacheã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢è²¡å›£ã®ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®1ã¤ã§ã€å¤§è¦æ¨¡åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®å”èª¿å‹•ä½œã‚’å®Ÿç¾ã™ã‚‹ãƒ„ãƒ¼ãƒ«ã€‚åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ãŒå”èª¿å‹•ä½œã™ã‚‹ãŸã‚ã«å¿…è¦ãªã‚³ã‚¢æ©Ÿèƒ½ã‚’æä¾›ã™ã‚‹ã“ã¨ã§ã€é–‹ç™ºè€…ã®è² è·ã‚’å¤§å¹…ã«ä½Žæ¸›ã—ã¾ã™ã€‚Hiveã‚„Hadoopã®æ–°ã—ã„ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©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€‚åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®å”èª¿å‹•ä½œã«é ã‚’æ‚©ã¾ã›ã¦ã„ãŸå¤šãã®é–‹ç™ºè€…ã«ã¨ã£ã¦ç¦éŸ³ã¨ãªã‚‹ã€ZooKeeperã‚’ä½¿ã£ãŸåŠ¹æžœçš„ãªåˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®ç®¡ç†æ‰‹æ³•ã€ã‚¹ãƒžãƒ¼ãƒˆãªå•é¡Œè§£æ±ºæ³•ã‚’æç¤ºã—ã¾ã™ã€‚ ã¾ãˆãŒã Iéƒ¨ ZooKeeperã®ã‚³ãƒ³ã‚»ãƒ—ãƒˆã¨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“ã¨ 1.1.3 Apacheãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆ 1.1.4 ZooKeeper
ButterflyFish 2014/09/22
book

apache

development
ãƒªãƒ³ã‚¯
Apache Nutchâ„¢
Nutch is a highly extensible, highly scala ble, matured, production-ready Web crawler which enables fine grained configuration and accomodates a wide variety of data acquisition tasks. Scala ble Relying on Apache Hadoopâ„¢ data structures, Nutch is great for batch processing large data volumes but can also be tailored to smaller jobs. Pluggable Out of the box Nutch offer powerful plugins i.e., parsing
ButterflyFish 2011/01/28
apache

hadoop
ãƒªãƒ³ã‚¯
Apache Cassandra | Apache Cassandra Documentation
What is Apache Cassandra? Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.
ButterflyFish 2010/03/10
apache

cassandra

kvs

java
ãƒªãƒ³ã‚¯
Hadoopã®è§£æžè³‡æ–™
ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã€ŒHadoopã€ã«é–¢ã™ã‚‹è§£æžè³‡æ–™ã‚’å…¬é–‹ã•ã›ã¦é ‚ã„ã¦ãŠã‚Šã¾ã™ã€‚ã“ã®èª¿æŸ»ã¯NTTãƒ¬ã‚¾ãƒŠãƒ³ãƒˆæ ªå¼ä¼šç¤¾æ§˜ã¨å…±åŒã§è¡Œã„ã¾ã—ãŸ(ãƒ—ãƒ¬ã‚¹ãƒªãƒªãƒ¼ã‚¹)ã€‚ Hadoopè§£æžè³‡æ–™(PDF), æœ€çµ‚æ›´æ–°: 2008/08/25, å…¬é–‹: 2008/08/25 Hadoopã®å®Ÿéš›ã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«æ–¹æ³•ãªã©ã«ã¤ãã¾ã—ã¦ã¯ã€å¼Šç¤¾å¤ªç”°ã«ã‚ˆã‚‹ä»¥ä¸‹ã®è¨˜äº‹ã‚‚ã”å‚è€ƒä¸‹ã•ã„ã€‚ Hadoopã€hBaseã§æ§‹ç¯‰ã™ã‚‹å¤§è¦æ¨¡åˆ†æ•£ãƒ‡ãƒ¼ã‚¿å‡¦ç†ã‚·ã‚¹ãƒ†ãƒ Hadoopã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã¨ã‚µãƒ³ãƒ—ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ ã®å®Ÿè¡Œ è¤‡æ•°ãƒžã‚·ãƒ³ã¸Hadoopã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹
ButterflyFish 2009/06/17
apache

ã‚ã¨ã§èªã‚€

hadoop
ãƒªãƒ³ã‚¯
Visitors - fast web log analyzer
Visitors ã¯ Linuxã€Windows ãŠã‚ˆã³ãã®ä»–ã® Unix ãƒ©ã‚¤ã‚¯ãª OS ã§å‹•ãã¨ã¦ã‚‚è»½å¿«ãªã‚¦ã‚§ãƒ–ãƒã‚°è§£æžãƒ„ãƒ¼ãƒ«ã§ã™ã€‚ ã‚¦ã‚§ãƒ–ã‚µãƒ¼ãƒãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã‚’å…¥åŠ›ã™ã‚‹ã¨ã€çµ±è¨ˆã‚’ã„ã‚ã„ã‚ãªå½¢ã®ãƒ¬ãƒãƒ¼ãƒˆã¨ã—ã¦å‡ºåŠ›ã—ã¾ã™ã€‚ ãã®è¨è¨ˆæ–¹é‡ã¯åŒã˜ã‚¿ã‚¤ãƒ—ã®ä»–ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã¨æ¯”è¼ƒã™ã‚‹ã¨ã‹ãªã‚Šç•°ãªã£ã¦ã„ã¾ã™: ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã¯å¿…è¦ã‚ã‚Šã¾ã›ã‚“ã€‚é«˜é€Ÿãªã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ã§ã¯æ¯Žç§’æœ€å¤§150,000è¡Œã®ãƒã‚°ã‚¨ãƒ³ãƒˆãƒª(ä½œè€…è‡ªèº«ã®ãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã®å¹³å‡ã§ã¯æ¯Žç§’20MB)ã‚’å‡¦ç†ã—ã¾ã™ã€‚ ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§å®Ÿè¡Œã™ã‚‹ã‚ˆã†ã«è¨è¨ˆã•ã‚Œã¦ãŠã‚Šã€html ã¨ãƒ†ã‚ã‚¹ãƒˆã§ãƒ¬ãƒãƒ¼ãƒˆã‚’å‡ºåŠ›ã—ã¾ã™ã€‚ ãƒ†ã‚ã‚¹ãƒˆã®ãƒ¬ãƒãƒ¼ãƒˆã‚’ less ã«ãƒ‘ã‚¤ãƒ—ã™ã‚‹ã“ã¨ã§ ssh ã‚’é€šã˜ã¦ã‚¦ã‚§ãƒ–çµ±è¨ˆã‚’ãƒã‚§ãƒƒã‚¯ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ ãƒãƒ¼ã‚¸ãƒ§ãƒ³ 0.3 ã§å°Žå…¥ã•ã‚ŒãŸ Visitors ã‚¹ãƒˆãƒªãƒ¼ãƒ ãƒ¢ãƒ¼ãƒ‰ã«ã‚ˆã£ã¦ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ çµ±è¨ˆã‚’ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚ ãƒã‚°ã®æ›¸å¼ã‚’æŒ‡å®šã™ã‚‹å¿…è¦ã¯
ButterflyFish 2009/01/05
apache

ãƒ„ãƒ¼ãƒ«

log

tool
ãƒªãƒ³ã‚¯
Apache CouchDB
Data Where You Need It Apache CouchDB â„¢ lets you access your data where you need it. The Couch Replication Protocol is implemented in a variety of projects and products that span every imaginable computing environment from globally distributed server-clusters, over mobile phones to web browsers. Store your data safely, on your own servers, or with any leading cloud provider. Your web- and native a
ButterflyFish 2008/06/02
apache

ã‚ã¨ã§èªã‚€

å¾Œã§èªã‚€
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tips - Apacheã®Logãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã®æ–¹ã‚’å¤‰ãˆã¦é«˜é€ŸåŒ– : 404 Blog Not Found
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ButterflyFish 2007/10/05
apache

æ£è¦è¡¨ç¾

log
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ButterflyFish 2007/09/02
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ButterflyFish 2007/06/18
apache

performance

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ButterflyFish 2007/03/04
mod_rewrite

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ButterflyFish 2006/11/29
apache

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Michael J. Radwin talks
2006 Hacking Apache HTTP Server at Yahoo!, Thursday, July 27, 2006 (OSCON 2006) Slides in HTML | PDF | PPT Since 1996, Yahoo has been running Apache HTTP Server on thousands of servers and serving billions of requests a day. This session reveals the secrets of how Yahoo gets maximum performance out of minimal hardware by tweaking configuration directives and hacking the source code. Radwin will
ButterflyFish 2006/05/11
web

apache
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