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naoyaã«é–¢ã™ã‚‹terurouã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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Kansai.pm ã§ã®ç™ºè¡¨è³‡æ–™ (Hadoop Streaming ã§ MapReduce) - naoyaã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
Kansai.pm ã«å‚åŠ ã—ã¾ã—ãŸã€‚ã¨ã¦ã‚‚æ¥½ã—ã‹ã£ãŸã§ã™ã€‚è‡ªåˆ†ã‚‚ "Hadoop Streaming ã§ MapReduce" ã¨ã„ã†é¡Œç›®ã§ç™ºè¡¨ã—ã¾ã—ãŸã€‚å–ã‚Šæ€¥ãŽã€è³‡æ–™ã‚’ä»¥ä¸‹ã«å…¬é–‹ã—ã¾ã™ã€‚ http://bloghackers.net/~naoya/ppt/080530kansai pm.ppt MapReduce ã¯ Google ã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã§å‹•ã„ã¦ã„ã‚‹åˆ†æ•£ä¸¦åˆ—ãƒãƒƒãƒå‡¦ç†ã‚·ã‚¹ãƒ†ãƒ ã§ã™ã€‚GFS ã¯ Google ã®åˆ†æ•£ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã§ã™ã€‚Google ã‚¦ã‚§ã‚¢ã®ã‚¯ãƒãƒ¼ãƒ³ã¨ã—ã¦ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã§é–‹ç™ºã•ã‚Œã¦ã„ã‚‹ã®ãŒ Hadoopã€‚Hadoop ã¯ Yahoo! Inc ã‚„ Facebook, Amazon.com ãªã©ã§ã‚‚åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã¨ã®ã“ã¨ã€‚Hadoop ã¯ Java ã§ã™ãŒã€Hadoop Streaming ã‚’ä½¿ã†ã¨ã€€Java ä»¥å¤–ã§ã‚‚ MapReduce ã§ãã¾ã™ã€‚ ä»¥ä¸‹ã®ã‚¨ãƒ³ãƒˆãƒªã‚‚åˆ
terurou 2008/06/10
google

perl

naoya

MapReduce

Hadoop
ãƒªãƒ³ã‚¯
Hadoop Streaming - naoyaã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
id:naoya:20080511:1210506301 ã®ã‚¨ãƒ³ãƒˆãƒªã®ã‚³ãƒ¡ãƒ³ãƒˆæ¬„ã§ kzk ã•ã‚“ã«æ•™ãˆã¦ã„ãŸã ã„ãŸ Hadoop Streaming ã‚’è©¦ã—ã¦ã„ã¾ã™ã€‚ Hadoop ã¯ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã® MapReduce + åˆ†æ•£ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã§ã™ã€‚Java ã§ä½œã‚‰ã‚Œã¦ã„ã¾ã™ã€‚Yahoo! Inc ã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚„ã€Facebookã€Amazon.com ãªã©ã§ã‚‚åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã¨ã®ã“ã¨ã§ã™ã€‚è©³ã—ãã¯ http://codezine.jp/a/article/aid/2448.aspx (kzk ã•ã‚“ã«ã‚ˆã‚‹é€£è¼‰è¨˜äº‹)ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ Hadoop Streaming è¨˜äº‹ã«ã‚‚ã‚ã‚Šã¾ã™é€šã‚Šã€Hadoop æ‹¡å¼µã® Hadoop Streaming ã‚’ä½¿ã†ã¨æ¨™æº–å…¥å‡ºåŠ›ã‚’ä»‹ã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’è¨˜è¿°ã™ã‚‹ã ã‘ã§ã€Hadoop ã«ã‚ˆã‚‹ MapReduce ã‚’åˆ©ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã¤ã¾ã‚Šã€Java ä»¥å¤–
terurou 2008/05/15
ã¸ãƒ¼ã€æ¨™æº–å…¥å‡ºåŠ›ã•ãˆã§ããŸã‚‰ã©ã‚“ãªè¨€èªžã§ã‚‚Hadoopä½¿ãˆã‚‹ã®ã‹ã€‚çŸ¥ã‚‰ãªã‹ã£ãŸãªãã€‚

Hadoop

perl

naoya
ãƒªãƒ³ã‚¯
Perl ã§ 8ãƒ“ãƒƒãƒˆ CPU ã‚’ä½œã‚‹ - naoyaã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
CPU ã‚’ä½œã‚‹ã€ã¨è¨€ã£ã¦ã‚‚ãƒãƒ¼ãƒ‰ã§ã¯ãªãã‚½ãƒ•ãƒˆã€ä»®æƒ³æ©Ÿæ¢°ã§ã™ã€‚ 2001 å¹´ã‹ã‚‰ UNIX USER ã§é€£è¼‰ã•ã‚Œã¦ã„ãŸè¥¿ç”°äº™ã•ã‚“ã®ã€Œgccãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°å·¥æˆ¿ã€ã€‚ã„ã¾ã•ã‚‰ãªãŒã‚‰ã€ãƒãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ã‚’å–ã‚Šå¯„ã›ã¦åˆå›žã‹ã‚‰é †ç•ªã«èªã‚“ã§ã„ã¾ã™ã€‚ã¨ã¦ã‚‚ãŸã‚ã«ãªã‚‹é€£è¼‰ã§ã™ã€‚ ã“ã®é€£è¼‰ä¸ã§ç¬¬10å›žã‹ã‚‰æ•°å›žã«åˆ†ã‘ã¦é–‹ç™ºã•ã‚Œã¦ã„ãŸ octopus ã¨ã„ã† 8 ãƒ“ãƒƒãƒˆ CPU ã®ä»®æƒ³æ©Ÿæ¢°ãŒã‚ã‚Šã¾ã™ã€‚ã‚ªãƒªã‚¸ãƒŠãƒ«ã¯ C è¨€èªžã§æ›¸ã‹ã‚Œã¦ã„ãŸã®ã§ã™ãŒã€ãã®è¨è¨ˆã‚’è¦‹ã¦ã€ã“ã‚Œã¯ä»–ã®è¨€èªžã§ã‚‚ä½œã‚Œã‚‹ã®ã§ã¯ãªã„ã‹ã€ã¨æ€ã„ Perl ã«ç§»æ¤ã—ã¦ã¿ãŸã¨ã“ã‚ãªã‚“ã¨ã‹å‹•ä½œã•ã›ã‚‹ã“ã¨ãŒã§ãã¾ã—ãŸã€‚ä»¥ä¸‹ã® URL ã«ã‚³ãƒ¼ãƒ‰ã‚’å…¬é–‹ã—ã¾ã™ã€‚(è¥¿ç”°ã•ã‚“ã«ç¢ºèªã‚’å–ã£ãŸã¨ã“ã‚ã€ã‚ªãƒªã‚¸ãƒŠãƒ«ã®ã‚½ãƒ¼ã‚¹ã¯ Public Domain ã¨ã®ã“ã¨ã§ã—ãŸã€‚ã‚ªãƒªã‚¸ãƒŠãƒ«ã¯ http://www.skyfree.org/jpn/unixuser/ ã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰å¯èƒ½ã§ã™ã€‚
terurou 2008/01/17
perl

cpu

binary

naoya
ãƒªãƒ³ã‚¯
ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã®ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆåˆ‡ã‚Šæ›¿ãˆã«ä¼´ã†ã‚³ã‚¹ãƒˆ - naoyaã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
ã¾ãŸ Linux ã‚«ãƒ¼ãƒãƒ«ã®è©±ã§ã™ã€‚ Linux ã§ã¯ fork ã«ã‚ˆã‚‹ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¨ã€pthread ã«ã‚ˆã‚‹ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã§ã®ä¸¦è¡Œå‡¦ç†ã‚’æ¯”è¼ƒã—ãŸå ´åˆã€å¾Œè€…ã®æ–¹ãŒã‚³ã‚¹ãƒˆãŒä½Žãé«˜é€Ÿã¨è¨€ã‚ã‚Œã¾ã™ã€‚ã€Œã‚¹ãƒ¬ãƒƒãƒ‰ã¯ãƒ¡ãƒ¢ãƒªç©ºé–“ã‚’å…±æœ‰ã™ã‚‹ã®ã§ã€ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¨ã¯ç•°ãªã‚Šã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã‚¹ã‚¤ãƒƒãƒæ™‚ã«ãƒ¡ãƒ¢ãƒªç©ºé–“ã®åˆ‡ã‚Šæ›¿ãˆã‚’çœç•¥ã§ãã‚‹ã€‚åˆ‡ã‚Šæ›¿ãˆã«ä¼´ã†ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ãŒå°‘ãªã„ã€‚ã€ã¨ã„ã†ã®ãŒ FAQ ã®ç”ãˆã‹ã¨æ€ã„ã¾ã™ã€‚ ãŒã€Œã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ãŒå°‘ãªã„ã€ã¨ä¸€è¨€ã«ã„ã‚ã‚Œã¦ã‚‚å…·ä½“çš„ã«ã©ã†ã„ã†ã“ã¨ãªã®ã‹ãŒã‚¤ãƒ¡ãƒ¼ã‚¸ã§ãã¾ã›ã‚“ã€‚ãã“ã§ Linux ã®ã‚¹ãƒ¬ãƒƒãƒ‰å‘¨ã‚Šã®å®Ÿè£…ã‚’è¦‹ã¦è¦‹ã‚ˆã†ã˜ã‚ƒãªã„ã‹ã€ã¨ã„ã†ã®ãŒä»Šå›žã®ãƒ†ãƒ¼ãƒžã§ã™ã€‚ 3åˆ†ã§ã‚ã‹ã‚‹(?) ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¨ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ ã¾ãšã¯ã†ã‚“ã¡ãã€‚ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¨ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã®é•ã„ã®å›³ã€‚ä»¥å‰ã«ç¤¾å†…ã§å‹‰å¼·ä¼šã‚’ã—ãŸã¨ãã«ä½œã£ãŸè³‡æ–™ã«ã¡ã‚‡ã†ã©è‰¯ã„ã®ãŒã‚ã£ãŸã®ã§æŽ²è¼‰ã—ã¾ã™ã€‚Pthreadsãƒ—ãƒã‚°ãƒ©ãƒŸ
terurou 2007/10/12
naoya

è³‡æ–™

linux

ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰

ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹

process

thread
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terurou 2007/09/14
biz

hatena

naoya

ITProChallenge

èªã¿ç‰©
ãƒªãƒ³ã‚¯
ã€ITpro Challenge!ã€‘ã€Œä¸–ç•Œã‚’å¤‰ãˆã‚‰ã‚Œã‚‹ã®ã¯ã‚³ãƒ¼ãƒ‰ã ã‘ã€---ã¯ã¦ãªCTOä¼Šè—¤ç›´ä¹Ÿæ°ãŒæ˜Žã‹ã™â€œãƒãƒˆã‚²å»ƒäººâ€ã‹ã‚‰â€œãªã‚ŠãŸã‹ã£ãŸè‡ªåˆ†ã¸â€ã®é“ã®ã‚Šï¼šITpro
ã€ITpro Challenge!ã€‘ã€Œä¸–ç•Œã‚’å¤‰ãˆã‚‰ã‚Œã‚‹ã®ã¯ã‚³ãƒ¼ãƒ‰ã ã‘ã€---ã¯ã¦ãªCTOä¼Šè—¤ç›´ä¹Ÿæ°ãŒæ˜Žã‹ã™â€œãƒãƒˆã‚²å»ƒäººâ€ã‹ã‚‰â€œãªã‚ŠãŸã‹ã£ãŸè‡ªåˆ†ã¸â€ã®é“ã®ã‚Š ã€Œæœ¬å½“ã®æ„å‘³ã§ä¸–ç•Œã‚’å¤‰ãˆã‚‰ã‚Œã‚‹ã®ã¯ã‚³ãƒ¼ãƒ‰ã ã‘ã€‚ã‚³ãƒ¼ãƒ‰ã¨ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã®åŠ›ã§ï¼Œ10ä¸‡äººã‚’é©šã‹ã™ã“ã¨ãŒã§ããŸã€---ã¯ã¦ãª å–ç· å½¹æœ€é«˜æŠ€è¡“è²¬ä»»è€… ä¼Šè—¤ç›´ä¹Ÿæ°ã¯9æœˆ7æ—¥ï¼Œã‚¤ãƒ™ãƒ³ãƒˆITpro Challenge!ã§ã“ã†èªžã£ãŸã€‚ã‚¢ãƒ«ãƒ•ã‚¡ã‚®ãƒ¼ã‚¯ï¼ˆæŠ€è¡“ã®æ–¹å‘æ€§ã‚’æŒ‡ã—ç¤ºã™å…ˆé‹çš„ãªã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ï¼‰ã®ä»£è¡¨æ ¼ã¨ã‚‚ç›®ã•ã‚Œã‚‹ä¼Šè—¤æ°ã¯ï¼Œæ„å¤–ã«ã‚‚ã€Œãƒãƒˆã‚²å»ƒäººï¼ˆãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ä¸æ¯’è€…ï¼‰ã€ã§ã€Œä¸æº€ã‚’ä¼šç¤¾ã®ã›ã„ã«ã—ã¦ã„ãŸç”˜ã¡ã‚ƒã‚“ã€ã ã£ãŸã¨ã„ã†ã€‚ ãƒãƒˆã‚²ã«ã¯ã¾ã£ãŸã€Œä½•ã‚‚ç”Ÿã¿å‡ºã•ãªã„3å¹´é–“ã€ ä¼Šè—¤ç›´ä¹Ÿæ°ã¨ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ã®æœ€åˆã®å‡ºä¼šã„ã¯æ—©ãï¼Œå¹¼ç¨šåœ’ã®æ™‚ã«çˆ¶è¦ªãŒè²·ã£ã¦ããŸï¼˜ãƒ“ãƒƒãƒˆãƒ»ãƒ‘ã‚½ã‚³ãƒ³ã§ï¼Œé›‘èªŒã«è¼‰ã£ã¦ã„ãŸã‚²ãƒ¼ãƒ ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ã‚ãƒ¼ãƒœãƒ¼ãƒ‰ã‹ã‚‰å…¥åŠ›ã—ã¦éŠã‚“ã§ã„ãŸã¨ã„ã†ã€‚ã ãŒï¼Œä¸å¦ã‚„é«˜æ ¡
terurou 2007/09/12
ITProChallenge

naoya

èªã¿ç‰©
ãƒªãƒ³ã‚¯
naoyaã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼ - sched_setaffinity(2) ã‚’ä½¿ã£ã¦ä»»æ„ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä»»æ„ã®CPUä¸Šã§å‹•ã‹ã™
Linux 2.6 ã«ã¯ sched_setaffinity(2) ã¨ã„ã†ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ãŒã‚ã‚Šã€ã“ã‚Œã‚’åˆ©ç”¨ã—ã¦ä»»æ„ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’(ãƒžãƒ«ãƒCPUç’°å¢ƒä¸‹ã§)ç‰¹å®šã® CPU ã§å®Ÿè¡Œã•ã›ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚http://www-06.ibm.com/jp/developerworks/linux/051028/j_l-affinity.shtmlã€€ã«ã‚ˆã‚‹ã¨ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒ—ãƒã‚»ã‚¹ã§ãƒžãƒãƒ¼ã‚¸ãƒ£ã¨ãªã‚‹ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’ã“ã®ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã§ç‰¹å®šã® CPU ã«å›ºå®šã™ã‚‹...ã¨ã„ã£ãŸå¿œç”¨ãŒè€ƒãˆã‚‰ã‚Œã‚‹ãã†ã§ã™ã€‚ ã¸ãˆã€ã¨æ€ã£ãŸã®ã§ã¡ã‚‡ã£ã¨éŠã‚“ã§ã¿ã¾ã—ãŸã€‚LD_PRELOAD ã‚’ä½¿ã£ã¦ä»»æ„ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä»»æ„ã® CPU ã«å›ºå®šã—ã¦å‹•ã‹ã—ã¦ã¿ã¾ã™ã€‚GCC ã® __attribute__)((constructor))( ã§ sched_setaffinitiy(2) ã‚’å‘¼ã³ã¾ã™ã€‚(å‚è€ƒ: http://0xcc.net/blog/
terurou 2007/08/26
linux

kernel

cpu

naoya
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terurou 2007/08/20
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