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multiprocessing ã§ MapReduce ã‚’å®Ÿè£…ã™ã‚‹ - Python Module of the Week
ãƒšãƒ¼ã‚¸ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ multiprocessing ã§ MapReduce ã‚’å®Ÿè£…ã™ã‚‹ SimpleMapReduce ãƒ•ã‚¡ã‚¤ãƒ«ã®å˜èªžã‚’æ•°ãˆã‚‹ ãƒŠãƒ“ã‚²ãƒ¼ã‚·ãƒ§ãƒ³ ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ãƒ†ãƒ¼ãƒ–ãƒ« å‰: ãƒ—ãƒã‚»ã‚¹é–“é€šä¿¡ æ¬¡: readline â€“ GNU readline ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ This Page Show Source ã‚µãƒ³ãƒ—ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ PyMOTW ã®å…¨ã¦ã®ã‚µãƒ³ãƒ—ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ ã®å‡ºåŠ›ã¯ã€ æ³¨è¨˜ã•ã‚Œã¦ã„ãªã„é™ã‚Šã¯ Python 2.7.2 ã§ç”Ÿæˆã•ã‚Œã¦ã„ã¾ã™ã€‚ æ¨™æº–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®åˆæœŸã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã¯åˆ©ç”¨ã§ããªã„æ©Ÿèƒ½ã‚‚ç´¹ä»‹ã—ã¦ã„ã‚‹ å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ multiprocessing ã§ MapReduce ã‚’å®Ÿè£…ã™ã‚‹Â¶ Pool ã‚¯ãƒ©ã‚¹ã¯1ã‚µãƒ¼ãƒã§ç°¡å˜ãª MapReduce å®Ÿè£…ã‚’ä½œæˆã™ã‚‹ãŸã‚ã«ä½¿ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ãã‚Œã¯åˆ†æ•£å‡¦ç†ã®æœ€å¤§é™ã®åˆ©ç‚¹ã‚’å¾—ã‚‹ã‚‚ã®ã§ã¯ãªã„ã§ã™ãŒã€ã‚ã‚‹å•é¡Œã‚’å€‹ã€…ã®åˆ†
nextbigthing 2013/03/05
python

mapreduce
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ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ãƒ»ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã€ŒHadoopã€ã®MapReduceã‚¸ãƒ§ãƒ–ã¯ã€æ¨™æº–ã§ã¯Javaã§è¨˜è¿°ã—ã¾ã™ï¼ˆãã®ä»–ã«ã¯ã€Pigã€Hiveã€JAQLã¨ã„ã£ãŸã‚‚ã®ãŒã‚ã‚Šã¾ã™ï¼‰ã€‚ã—ã‹ã—ã€æ„å¤–ã¨åˆå¿ƒè€…ã«ã¯åˆ†ã‹ã‚Šã«ãã„ã¨ç†è€…ã¯æ„Ÿã˜ã¾ã™ã€‚æœ¬è¨˜äº‹ã§ã¯ã€MapReduceã‚¸ãƒ§ãƒ–ã®ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã‚’ä½¿ã£ã¦ã€ã§ãã‚‹é™ã‚Šæ£ã—ãã‚³ãƒ¼ãƒ‰ã®æ„å‘³ã‚’ç†è§£ã—ã€MapReduceã¸ã®å…¥ã‚Šå£ã‚’ç¤ºã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ Hadoopã§MapReduceã‚’è¨˜è¿°ã™ã‚‹ã¨ãã«ä½¿ã†APIãŒã€0.19ã‹ã‚‰0.20ã«å¤‰ã‚ã‚‹ã¨ã“ã‚ã§æ–°ã—ããªã£ã¦ã„ã¾ã™ã€‚å®Ÿã¯ã€ç¾æ™‚ç‚¹ã§Hadoopãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆ æœ¬ä½“ã‹ã‚‰ã§ã•ãˆã‚‚ã€æ–°APIã‚’ä½¿ã£ãŸã‚µãƒ³ãƒ—ãƒ«ãŒæç¤ºã•ã‚Œã¦ã„ã¾ã›ã‚“ã€‚æœ¬è¨˜äº‹ã§ã¯ã€æ–°ã—ã„APIã§ç†è€…ãŒæ›¸ãç›´ã—ãŸã‚µãƒ³ãƒ—ãƒ«ã‚’ä½¿ã£ã¦è§£èª¬ã—ã¾ã™ã®ã§ã€ã“ã®ã‚µãƒ³ãƒ—ãƒ«ã¯0.19ä»¥å‰ã®Hadoopã§ã¯å‹•ã‹ãªã„ã“ã¨ã«æ³¨æ„ã—ã¦ãã ã•ã„ã€‚ã“ã®è¨˜äº‹ã¯ã€0.20.2ã‚’ä½¿ã£ã¦æ¤œè¨¼ã—ã€è§£èª¬ã—ã¦ã„ã¾ã™ã€‚
nextbigthing 2011/11/01
hadoop

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Bigtableï¼ˆãƒ“ãƒƒã‚°ãƒ†ãƒ¼ãƒ–ãƒ«ï¼‰ã¨ã¯ã€Googleã®å¤§è¦æ¨¡ãªã‚µãƒ¼ãƒä¸Šã®å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’ç®¡ç†ã™ã‚‹ãŸã‚ã«è¨è¨ˆã•ã‚ŒãŸã€ãƒ‡ãƒ¼ã‚¿åœ§ç¸®æ©Ÿèƒ½ã‚’æŒã¤é«˜æ€§èƒ½ãªNoSQLåž‹ã®ãƒ—ãƒãƒ—ãƒ©ã‚¤ã‚¨ã‚¿ãƒªã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚‹ã€‚Google File Systemã€åˆ†æ•£ãƒãƒƒã‚¯ãƒžãƒãƒ¼ã‚¸ãƒ£ã®1ç¨®ã§ã‚ã‚‹Chubby Lock Serviceã€SSTableï¼ˆLevelDBï¼ˆè‹±èªžç‰ˆï¼‰ã«ä¼¼ãŸãƒã‚°æ§‹é€ åŒ–ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ï¼‰ã€ãã®ä»–ã®ã„ãã¤ã‹ã®Googleã®æŠ€è¡“ã‚’æ´»ç”¨ã—ã¦æ§‹ç¯‰ã•ã‚Œã¦ã„ã‚‹ã€‚2015å¹´5æœˆ6æ—¥ã€ãƒ‘ãƒ–ãƒªãƒƒã‚¯ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®BigtableãŒã€Google Cloud Platformã®ã‚µãƒ¼ãƒ“ã‚¹ã®1ã¤ã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸã€‚Bigtableã¯Google Cloud Datastoreã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã¨ã—ã¦ã‚‚åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹[1][2]ã€‚ 2004å¹´ã‹ã‚‰é–‹ç™ºãŒå§‹ã¾ã‚Š[3]ã€2006å¹´ã«ã¯è¨è¨ˆãŒè«–æ–‡ã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸ[4]ã€‚ MapReduce
nextbigthing 2011/06/09
google

database

gfs

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MapReduceï¼ˆãƒžãƒƒãƒ—ãƒªãƒ‡ãƒ¥ãƒ¼ã‚¹ï¼‰ã¯ã€ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿æ©Ÿå™¨ã®ã‚¯ãƒ©ã‚¹ã‚¿ãƒ¼ä¸Šã§ã®å·¨å¤§ãªãƒ‡ãƒ¼ã‚¿ã‚»ãƒƒãƒˆã«å¯¾ã™ã‚‹åˆ†æ•£ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚’æ”¯æ´ã™ã‚‹ç›®çš„ã§ã€Googleã«ã‚ˆã£ã¦2004å¹´ã«å°Žå…¥ã•ã‚ŒãŸãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ãƒ¢ãƒ‡ãƒ«ã§ã‚ã‚‹ã€‚ ã“ã®ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã¯é–¢æ•°åž‹è¨€èªžã§ã‚ˆãä½¿ã‚ã‚Œã‚‹Mapé–¢æ•°ã¨Reduceé–¢æ•°ã‹ã‚‰ãƒ’ãƒ³ãƒˆã‚’å¾—ã¦ä½œã‚‰ã‚Œã¦ã„ã‚‹ãŒã€ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã«ãŠã‘ã‚‹ãã‚Œã‚‰ã®ç”¨ã„ã‚‰ã‚Œæ–¹ã¯å…ƒã€…ã®ã‚‚ã®ã¨åŒã˜ã§ã¯ãªã„ã€‚ MapReduceã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒªç¾¤ã¯ã€C++ã€C#ã€Erlangã€Javaã€OCamlã€Perlã€Pythonã€PHPã€Rubyã€F#ã€Rè¨€èªžã€MATLABç‰ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ã€‚ MapReduceã¯å·¨å¤§ãªãƒ‡ãƒ¼ã‚¿ã‚»ãƒƒãƒˆã‚’æŒã¤é«˜åº¦ã«ä¸¦åˆ—å¯èƒ½ãªå•é¡Œã«å¯¾ã—ã¦ã€å¤šæ•°ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ï¼ˆãƒŽãƒ¼ãƒ‰ï¼‰ã®é›†åˆã§ã‚ã‚‹ã‚¯ãƒ©ã‚¹ã‚¿ãƒ¼ï¼ˆå„ãƒŽãƒ¼ãƒ‰ãŒåŒã˜ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢æ§‹æˆã‚’æŒã¤å ´åˆï¼‰ã‚‚ã—ãã¯ã‚°ãƒªãƒƒãƒ‰ï¼ˆå„ãƒŽãƒ¼ãƒ‰ãŒé•ã†ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢æ§‹æˆ
nextbigthing 2011/06/09
Google

MapReduce

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multiprocessing ã§ MapReduce ã‚’å®Ÿè£…ã™ã‚‹ - Python Module of the Week

Hadoop MapReduceãƒ—ãƒ­ã‚°ãƒ©ãƒ ã‚’è§£å‰–ã™ã‚‹

Bigtable - Wikipedia

MapReduce - Wikipedia

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multiprocessing ã§ MapReduce ã‚’å®Ÿè£…ã™ã‚‹ - Python Module of the Week

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