ã¨ã³ã¿ã¼ãã©ã¤ãºã§OSSã§ããã¨ãããã¨
ã¨ã³ã¿ã¼ãã©ã¤ãºã®OSSã«ã¤ãã¦
ãããªãã¨æ¸ãã¨OSSãªã¢ãã«ã³ãªäººã«ã¶ãæ®´ãããããã§ããèªã¿æã®æ¹ã§ãèªåã¯OSSãå¼ã£å¼µã£ã¦ããã¨èªè² ããã¦ããæ¹ãçµç¹ã®ããããOSSã¯åç¨ããç¡æ¡ä»¶ã§åªãã¦ããã¨æã£ã¦ãã人ã¯æ°åãæªããªãã®ã§ãèªã¾ãªãã§ãã ãããé常ã«å人çãªã¡ã¢ã§ãã®ã§ã以ä¸ã®èãã¯åºæ¬çã«ã½ããã¦ã§ã¢ã»ãã¸ãã¹ã¨ãã¦ã®èããªã®ã§ãèªåã§ä½ã£ã¦ãèªåã§å©ç¨ãã¦ãã ãããªäººã¯ããã¾ãèãã¦ãªãã®ã§ããã®ã¤ããã§èªãã§ããèªåå©ç¨OSSã¯ããã§ããã¨æãã®ã§ãããã§ãããã¨ã
[ã¾ãAsakusaã«ã¤ãã¦]
ã¾ãAsakusaããªãOSSãã¨ãããã¨ãæ確ã«ãã¦ããã¾ããé常ã«åç´ã§ããAsakusaã¯æ§ã
ãªäººã®æè¦ãéç´ãã¦ã§ãã¦ãã¾ããããã¯å¥ã«Nautilus-technologiesã®ã¡ã³ãã¼ã¨ããããã§ã¯ãªããHadoopã³ãã¥ããã£ã«åå ããæ¹ã®æè¦ãç¸å½åãå
¥ãã¦ãã¾ãããããã£ã¦ãå人ã®ãã®ããç¹å®ã®æ³äººã®ãã®ã§ã¯ãªãã¨æã£ã¦ãã¾ãããã£ã¦å¿
ç¶çã«OSSã«ãªã£ã¦ãã¾ãã以ä¸ã§ããã»ã»ã»ãã¨ã¯æ¦ç¥çãªå´é¢ãããã¾ãããããã¯å¾åèªãã°ãããã¨æãã¾ãã
[ããããã®åç¨ã©ã¤ã»ã³ã¹è²©å£²å ¨ä½ã«ã¤ãã¦]ãã¦æ¬é¡ã§ãããç¾ç¶ã®ã¯ã©ã¦ãå ¨çæã«ããã¦ã¯ãITãã¼ã±ããå ¨ä½ã§ã®ã¤ã³ã¹ãã¼ã«ãã¼ã¹ã®ã©ã¤ã»ã³ã¹ã»ãã¸ãã¹ã¯é常ã«å è¡ããæãã§ãããµã¼ãã¹åãé²ãã¨ãã©ã¤ã»ã³ã¹ãããæä¾ããã価å¤ãã®ãã®ã«ç¦ç¹ã移ãã¾ããããããè¨ããã¦ãããã©ããããªãã¤ã¤ããã¾ãã
ãã³ãã¼ããè¦ã¦ããã©ã¤ã»ã³ã¹ã»ãã¸ãã¹èªä½ã¯å è¡ãä¸éæã§ããç¾å¨ã®ã½ããã¦ã§ã¢ã®è²©å£²ã¯ä¸é¨ã®ããã¡ã¯ããé¤ãã¦ãäºå®ä¸ãªã¼ãã³ãã©ã¤ã¹åããããã¬ã¦ããã®ãç¾å®ã§ããããã¯ãã¤ã¾ããã¼ã±ããã«å¯¾ãã¦ãå¾æ¥ã®è²©å£²ææ³ããç¡å¹ã«ãªãã¤ã¤ãããã¨ã®è£æ¸ãã«ããªã£ã¦ãã¾ããã¯ã©ã¦ã以åãããããããã½ããã¦ã§ã¢ã®è²©å£²ã¯å²ã¨å³ããç¶æ ã§ããã¾ãããããã¸æ¥ã¦ãè¿ãå°æ¥ã¯ã©ããªããã¯ãããã«ããªãä¸éæã«ãªã£ã¦ãã¾ã£ã¦ãã¾ãã
ããã«ããã«ãã¯ã©ã¦ãç³»ã®ä»®æ³ç°å¢ãåæ£ç°å¢ã«è©±é¡ã移ãã¨è©±ã¯ããå³ãããªãã¾ããæ®éã«è¦ã¦ããä»®æ³åã«ãããåæ£å¦çãããç¹å®ã®ãã¼ãã®ã¤ã³ã¹ãã¼ã«ãã¼ã¹ã§ã®ãã¸ãã¹ãéç¾å®çã«ãªã£ã¦ãã¦ãã¾ããä»®æ³åã®ã±ã¼ã¹ã§ã¯ããããã©ã¤ã»ã³ã¹ã®å®ç¾©ãæªããããåæ£ç°å¢ã§ã¯ãã¼ãæ°ã極端ã«å¢ããã±ã¼ã¹ãæ³å®ããã¨ã©ã¤ã»ã³ã¹ã®è³¼å ¥ã®ã¤ã³ã»ã³ãã£ãã¯éããªãä¸ããã¾ãããããç¾ç¶ã§ããã
[ä¸æ¹ã§ã®ã¨ã³ã¿ã¼ãã©ã¤ãºOSSï¼]ä¸è¨ã®ç¶æ ã§ããã°ããã ããOSSã ãã¨ããè¨ãæ¹ã¯ç¢ºãã«ç解ã§ãã¾ãã
ç¹ã«ãµã¼ãã¹åã«æè»ãããããã©ã¤ã»ã³ã¹ã®è¦ãæ¹ãå¤ããã¤ã¤ç¾å¨ã®ç¶æ³ã«å ããã¾ããæ¨ä»ã®ä¸çä¸æ³ããè¡ãå ´ã失ã£ããã¡ã³ãããã³ãã¼ã®éç´ã«ã¬ãã¬ãã¸ãæä¾ããçµæã¨ãã¦ããããç¬å çãªéç´ã¨ãå½ç¶ã®å¸°çµã¨ãã¦ã®ã主è¦åç¨ã©ã¤ã»ã³ã¹ã»ãã³ãã¼ã®éº»è¬ã®ãããªç¡å¶éã®ãµãã¼ããã£ã¼ã®å¤ä¸ãã«ã¤ãªããã°ã(ãããããããã¯èªåãã®æãã種ã§ãããã¨ãæ£ã«ä¸ãã¦ãçµæéé¿çã«)ãã»ã»ã»ã ããOSSã ãã¨è¨ãåºãäºæ ã¯ãå§åçãã¤çµ¶å¯¾çã«ç解ã§ãã¾ãã
ãããããã¼ã±ããã®ç¾ç¶ã§ãã¨ã³ã¿ã¼ãã©ã¤ãºå¸å ´ï¼ããã§è¨ãã¨ã³ã¿ã¼ãã©ã¤ãºã¨ããæå³ã¯ãæ¢ããã被害ãã§ã¾ããã¨ããã·ã¹ãã ã®å¸å ´ã§ãï¼ã«é¢ãã¦è¨ãã°ãOSSã¨åç¨ã©ã¤ã»ã³ã¹ã®éãã¯ãããªãä¸éæã«ãªã£ã¦ãã¾ããä¸æãããã¨ãä¸ç¾©çãªãªã¼ã¬ã«ãªåé¡ã§ãããªããªããªã£ã¦ãã¦ããå¯è½æ§ããããã¾ãã
ããããã¾ã¦ã¾ã¦ããã¼ãããªãã ãããã¨ãã話ãããã¨æãã®ã§ä»¥ä¸é ã«æãã¨ãããæ¸ãã¦ããã¾ããç¹ã«ãã¦ã¼ã¶ã¼ã¬ãã«ããè¦ãã°ãéãã¯ãå質ã®åé¡ãã³ã¹ãã®åé¡ãã¨åæã«ããè¨ããããã³ãã¼ããã¯ã¤ã³ã®åé¡ã§ããã
[å質]
ã¾ããã¨ã³ã¿ã¼ãã©ã¤ãºã¨ãããã¨ã«ãªã£ãé端ã«ãOSSã¸ã®å質è¦æ±æ°´æºã¯ãæ®éã«ãããã¯ããã¼ã¹ã¨åãæ°´æºã«ãªãã¾ããä½ããã®ã½ããã¦ã§ã¢é害ãã©ãã«ãçºçããæç¹ã§ãOSSã§ãããã¨åç¨ã©ã¤ã»ã³ã¹ã§ãããã¨éãã¯ããã¾ãããå質ã¨ããã®ç¶æã¡ã³ãã®è¦æ±ã«ãªãã¾ãã端çã«ããã¨ãé常ã®OSSã«ã¯ããæå³è¦æ±ãããªãæ°´æºã§ããããã³ãã¼ãµãã¼ãã®ãªãé常ã®OSSã«ãå質ã¨ç¶ç¶ãµãã¼ãããè¦æ±ãããã¨ã¯ãçæ³ã¯ã¨ããããç¾å®çã«ã¯å³ãããå¿è«ãä¾å¤ã¯ãããã§ãããã¾ããããã¯ãä¾å¤ã«éãã¾ãããããã¯å¾æ¥ãããåãã§ãããä»å¾ãåãã ã¨æãã¾ããã»ã»ã»ãã£ã¦ããã§ãOSSã§ã¯å質ãæ
ä¿ããã¾ãããã¨ããã話ã«ãªãã¾ãã
ã¾ãOSSé£å¶ã®æ¹ã ã¯ããããããªãã¨ã¯ãªããç¾ã«æLinuxã¯ã§ããã»ã»äºã ãã¨ãã話ã«ãªãã¾ããæ°ããå人ã®éåçãªåµæ工夫ã¯ãã¨ã³ã¿ã¼ãã©ã¤ãºã®ç»ä¸çãªçç£å·¥ç¨ãããå質ãå®ã¯é«ãã»ã»ã¨ã
éãã¨æãã¾ããåã 人ã®åµæ工夫ã¯ãä½ã«ãã¾ãã¦ä¾¡å¤åµé ã®æºæ³ã ã¨ã¯æãã¾ãããã¨ã³ã¿ã¼ãã©ã¤ãºã§ã®å質ã®æ ä¿ã¯ç¸å½è¦æ¨¡ã®ãã¼ã ãã¬ã¤ã§ããã½ããã¦ã§ã¢ã®ã¨ã³ã¿ã¼ãã©ã¤ãºã¸ã®å質è¦æ±ãå人ãã¬ã¼ã®å»¶é·ç·ä¸ã§ãç¶ç¶çã«ãã«ãã¼ãããã¨ã¯ã§ãã¾ãããå質ãç¶æã»åä¸ãå¯è½ãªã®ã¯ããµãã¼ãã«ãããªãã®ä¼æ¥ãããã¯ã¢ããããå ´åã§ãã
å®éã©ããªã®ãï¼ã¨ããã¨ãç¾å¨ã®ã¨ãããã»ã¨ãã©ã®ä¸»è¦OSSã¯ãä¼æ¥ã®ããã¯ã¢ããã§æç«ãã¦ãã¾ãããä¼½èã¨ãã¶ã¼ã«ãã®è°è«ã¯ç¢ºãã«ããã¨ã¯æãã¾ãããæ®å¿µãªããããããããåãã¦ã®ããã«ã¼ãã®ã»ã¨ãã©ãã大ä¼æ¥ã®åºè·ä¸ã§ãããã³ã°ããã¦ãããç¾ç¶ã§ã¯ãç§æçãªOSSãã®ãã®ããä¸ç¨®ã®ãããã£ã«ããè¦ããªãã®ãç¾ç¶ã§ããããä¼æ¥ããã®å¾ãç«ã¦ã«ãªã£ã¦ããããä»ã®ä¸è¬ã«ãã¨ã³ã¿ã¼ãã©ã¤ãºã§ã使ãããOSSã§ãããã®æå³ã§ãå質ä¿æã¯é常ã®åç¨ã©ã¤ã»ã³ã¹ä¸¦ã¿ã«ç¶æããã¦ãã¾ãã
ãã®ç¶æ ã§ã¯ãOSSã¨åç¨ã§ã¯å質çãªå·®ã¯ããã»ã©ããã¾ããã
[ã³ã¹ã]
ãOSSã¯åªã§åç¨ã¯æåãã£ã¦ã®ã¯å®ã¯ãµãã¼ãã«ã¤ãã¦ã¯ãå¿è«éãã¾ããããã¯ã¾ããããããã§ã¯ãªãã§ããããã¨ããæèã¯ã¦ã¼ã¶ã¼ãµã¤ãã«ã¯èªèããã¤ã¤ããã¾ããã¡ããã¨ããä¼æ¥ã¦ã¼ã¹ã§ããã°ãOSSã§ãããã¨ãµãã¼ãã«ã¯ã³ã¹ãããããããéã«åç¨ãä¸å¿
è¦ã«é«ãå ´åã¯ãéã¯æãã¾ããããã¨ããå½¢ã«ãªã£ã¦ãã¾ãã
åºæ¬çã«ã¦ã¼ã¶ã¼ã¯æè³å¹æ対ã³ã¹ãã§å¤æ®µãåæ¡ããã®ã§ããæ確ãªã¡ãªããã®ã§ãªãã³ã¹ããã«ã¤ãã¦ã¯ãè² æ ã«ã¤ãã¦ã¯æ¶æ¥µçã«ãªãã¾ãã大æµã¯ããã®ãµãã¼ãã®å 容ã¯ãªããªãã ï¼ãã¨ãããã¨ãåé¡ã«ãªãã¯ãã§ããOSSã¨ãåç¨ã¨ãã¯é¢ä¿ãªãã§ããããã¡ãããOSSã ãããµãã¼ãããããªãã¦ãããã¨ããæ³å®èªè³ 責ããæå¾ å¤è¨ç®ã§ãã£ã¨ã°ãã¨ã³ãã»ã¦ã¼ã¶ã¼ãããããã«ã¯ãã¾ãããããããã¦ã¼ã¶ã¼ããã¯åç¨ã§ããµãã¼ãã¯ã¶ã£é£ã°ãã¾ãã
è¦ããã«ãµãã¼ãã³ã¹ãã«ã¤ãã¦ã¯ããã»ã©å容ã«éãã¯ããã¾ããã
[ãã³ãã¼ããã¯ã¤ã³]
ã¾ããè¯ãè¨ãããã®ã¯ããã³ãã¼ããã¯ã¤ã³ã®è©±ã§ããæ°ããåç¨ã¯ãã³ãã¼ã«ããã¯ã¤ã³ãã¦æãã§ãªããOSSãªãã½ã¼ã¹ãããããããã¯ã¤ã³ãã¾ããããã¾ããå²ã¨åéããã¦ãã人ãããã®ã§ãã¯ã£ããè¨ã£ã¦ããããã®ã§ããããã¢ããªãããã¼ãã¾ã§èªç¤¾éçºããªãéãããã³ãã¼ããã¯ã¤ã³ã¯å¿
ãçºçãã¾ããããã¯OSSã ããããåç¨ã ãããå·®ã¯ããã¾ããã
ãOSSãªãã°ãèªåã§ã½ã¼ã¹ãä¿®æ£ãã¦ãæãæã¦ãããã¨ããï¼æ¢ãã¦ããã¾ããï¼å¹»æ³ã¯ãã¨ã³ã¿ã¼ãã©ã¤ãºã»ã·ã¹ãã ã§ã¯ã¾ã£ããéç¾å®çã§ããåç¨ã§ãã£ã¦ããã£ãããããã®ã¯ãã¡ããã¨ããããåºã¾ãããã¯ã¼ã¯ã¢ã©ã¦ã³ããæ示ããã¾ãã対å¿ã§ããã»ã§ããªãã¯OSSã¨åç¨ã®éãã§ã¯ããã¾ãããåã«ãã³ãã¼ã®éãã§ãã
è¦ããã«ã¡ããã¨ããã¬ããã³ã¹ããã£ã¦ããã³ãã¼ã¨æ¸¡ãåããªãéããåç¨ã ããããOSSã ãããããã³ãã¼ããã¯ã¤ã³ãã¯çºçããã¨è¨ã£ã¦ãã¾ãã
ã»ã»ã»ãããªãããªã§ãå®ã¯ã¨ã³ã¿ã¼ãã©ã¤ãºã§ã¯åç¨ã¨OSSã®éãã¯ãã¾ãæ確ã§ã¯ãªãã§ãããã ããããã¯å¾æ¥ã®OSSä¸æ³çãªã«ã«ãã£ã¼ãæ³å®ããå½¢ã¨ã¯ã¾ã£ããå¥ã®è¦å ã¨èæ¯ã§ãã¨ãããã¨ã§ãã
[OSSã«ã¤ãã¦ã®å¹»æ³]
端çã«ããã¨ãOSSã¨åç¨ãã¹ã¼ãã¨ã®ã¼ã¯ãä¼½èã¨ãã¶ã¼ã«ã®ããã種ã®ãã°ããã£ãã¯ãªè°è«ã¯ã対ç«è»¸ã®ç²¾éåã§æãç«ã£ã¦ããè°è«ã ã¨æãã¾ããä¼½èèªä½ãå´©ããã¨ãã®ããã¶ã¼ã«ã®ä½ç½®ã¥ãã¯ãå½ç¶å¤ããã¾ããã®ã¼ã¯ã®ä¸å¸ããã¤ã®ã¾ã«ããã¹ã¼ãã ã£ããããã°ããããã¾ããâã®ã¼ã¯âã®ä½ç½®ä»ããå½ç¶å¤ããã¾ããåç¨ã©ã¤ã»ã³ã¹ãæç«ãã¥ããç¾ç¶ã§ã®ãOSSã®ä½ç½®ä»ããå½ç¶å¤ããã¤ã¤ããã¨è¨ããã§ãããã
ããããOSSã¯ãä¼½èã¨ãã¶ã¼ã«ãã§è¡¨ç¾ããã¦ããæåããã©ã¤ã»ã³ã¹ã®ãã¨ã®èµ·ãããããã®å¾ã®è«äºãè¦ãã°ãããéãããã®æç«ã®ä»æ¹ããçºå±ã®èæ¯ã«ã¯ã常ã«ã¢ã³ããã¼ã¼ã®å¯¾è±¡ã¨ãã¦ã®ãåç¨ã®ã½ããã¦ã§ã¢ããã£ããã¨ã¯å¦å®ã§ãã¾ããã
æªå½¹ï¼ãã¼ã«ï¼ã¨ãã¦ã®åç¨ã½ããããã£ãããã«æç«ãã¦ããOSSã®çµ¶å¯¾æ§ã¯ãåç¨ã©ã¤ã»ã³ã¹ã®ãã¸ã·ã§ã³ãå´©ãã¤ã¤ããç¾ç¶ã§ã¯ããã¯ãéå»å½¢ã«ãªãã¤ã¤ããã¾ããOSSã¨åç¨ã©ã¤ã»ã³ã¹ã¨ãã軸ããããã¤ã¤ããã¾ããæ®ã£ãã®ã¯å½¢éª¸åããæ³å¾è«ã ããã¨ãããã¨ã«ãªãããããã¨ãå¥ã®ãå½¢æ ãã«å¤ãããã¨ãã§ããã®ãï¼é¢ãã£ã¦ãã人éã¨ãã¦ãé常ã«èå³ãããã¾ãã
[ã¨ã³ã¿ã¼ãã©ã¤ãºOSSã¯ããããå¸å ´ã¨ãã¦æç«ããã®ã]
ã»ã»ã»ã¨ã¯ãããOSSã§é£ããã®ãï¼ãã£ã¦ãããã®ãï¼ã¨ãã話ã¯å½ç¶ããããã§ãç¾å®çãªè¶³ä¸ãè¦ãã°ãã¨ã³ã¿ã¼ãã©ã¤ãºOSSã¯ä¸ã¤ã®æå³ã§ããã¸ãã¹ã¢ãã«ã®ã³ã³ãã¯ã¹ããå¤ããã¤ã¤ããã¾ãã
ä¸ã¤ã¯ãOSSã«å¸¸ã«è¨ãããããããããã©ããã£ã¦é£ã¹ãã®ãï¼ãã¨ããåé¡ã§ãã
ããã¯ãâããããã©ãã ããé£ã¹ã¦ãããã°è¯ãã®ãï¼âã¨ããåé¡ã«ãã³ã³ãã¯ã¹ããæè¿ã¯éå
ããã¤ã¤ããã¾ãããµãã¼ããå«ãã種ã
ã®ãã¸ãã¹ã¯ããã¨ã¨ã³ã¿ã¼ãã©ã¤ãºç³»ã¯ãå¿
ãä¸å®ã®ãã¸ãã¹ãã«ã¯ãªãã¤ã¤ããã®ã§ã
ããããWebç³»ã®OSSã¨ã¨ã³ãã©ç³»ã®OSSã®æ大ã®éãã¯ãããµãã¼ããã§ãããã¨ã¯ä¸è¨ã®éãã§ããæ¢ã¾ãã¨äººãæ»ã¬ã·ã¹ãã ã§ã¯ããµãã¼ããã®è¦æ±åº¦åããã¾ãã§éãã¾ãããã¼ã±ãããã¼ãºã¯ããã¾ãããã ããé¡ã¯è¶³ããªããããããä»å¾ã¯ITã§é£ã£ã¦è¡ããã°ãªããªã人éã¯ãããããæ¸ãã ããã¨ããè¦è¾¼ã¿ããã¿ã¦ããããããçµæã¨ãã¦ãã¼ã±ããã®é給ã¯åã£ã¦ãã¾ãã
äºã¤ç®ã¯ãNot Invented Hereçå群ã«å¯¾ããç·©åå¤ã¨ãã¦ã®ä½ç¨ã§ãã
Linuxã®åç¨ãµã¼ãã¹ä»¥æ¥ãOSSããæ¥æ¬ã®SIå±ãç¹ã«ã¦ã¼ã¶ã¼ããã§ã®Not Invented Hereçå群ãç·©åãã¦ããã®ã¯äºå®ã§ããOSSã§ãããããªããã¯å¤§ãããã½ã¼ã¹ã³ã¼ããè¦ããã®ã§ãã®æ°ã«ãªãã°ãªãã¨ããªããã¨ããç³è¡£ã¯SIå±ããã«ã¨ã£ã¦ã¯å¹æçãªãã©ã»ãã«ãªã£ã¦ãã¾ããã½ã¼ã¹ãããããã¨è¨ã£ã¦ãããããã®ã¾ã¾å®å
¨ã«ä½¿ãããããã®æ°ã«ãªãã°ãµãã¼ãã§ãããã¨ããã®ã¯ãï¼ããä¸åº¦æ¢ãã¦è¨ãã¾ããï¼ã¨ã³ã¿ã¼ãã©ã¤ãºã¬ãã«ã§ã¯å¹»æ³ã«ããã¾ãããã»ã»ãªãã§ããã大æããã®ç¡¬ç´çãªçµç¹ãå¹»æ³ã好ããªã®ã¯ããåç¥ã®ã¨ããã§ããï¼éã«è¨ãã¨ãNot Invented Hereãå®ã¯ãã¾ãæ ¹æ ããªãã®ãç¾å®ã ã£ãããã¾ãï¼åç¨ã ã¨ãNot Invented Hereãã¨ããã¤ã¤ããOSSãªãSIã§ä½¿ã£ã¦ããããã¨ããã¨ããã¯å®ã¯å¤ããªã£ã¦ãã¾ãã
ä¸ã¤ç®ã¯ç«¶ååªä½ã§ãã
å¼·çã«å
端系ã®æè¡ã¯ã©ãããããã ããOSSã§åºã¦ãããã¨ãå¤ããããã¯éçºãµã¤ããåºã使ã£ã¦ãããã¨ãããã¨ãæå³ããçµæã§ã¯ããã¨ã¯æãã¾ãããçµæã¨ãã¦ãå
端系ã®ã½ããã¦ã§ã¢ã®éçºã¸ã®ç«¶åæé¤ã®å¯ä½ç¨ããã¡ã¾ããåããã®ãä½ããã¨ããå ´åã競åãOSSã§ããå ´åãéçºäºç®ã®ç²å¾ã®ãã¼ãã«ã¯å¼·çã«ãããã¾ããçµæã¨ãã¦ãåç¨ã®å¾è¿½ãã§ãªã製åãOSSã«ããå ´åãé度ãªç«¶äºããæé¤ããããã¨ã大ããã
ã»ã»ã»ãã ããããã¯OSSã®å質ã«ç©´ããªãå ´åã§ãããå質ã«åé¡ãããå ´åã¯ãå¾è¿½ãã®åç¨ãã©ãã©ãåºã¦ãã¾ããã¾ãããã§ã«åç¨ã®ã½ããã»ã¦ã§ã¢ãããå ´åã¯ããªãã¬ã¼ã¹ã¡ã³ãã³ã¹ãããããï¼ããããå è¡ãã¼ã±ããã競åç¶æ ãªã®ã§ã競ååªä½ã«ã¯ãªãã¾ããã
ï¼Hadoopã¯ãã®æå³ã§ã¯é¢ç½ãã±ã¼ã¹ã ã¨æãã¾ããã¾ãOSSã«ãªã£ã¦ãããã¨ã¯ééããªãåç¨ã®ç«¶åæé¤ã«ã¯ãªãã¾ãããä¼¼ããããªè£½åã§åè¦æ¨¡ã®ãã®ã¯ãããåç¨ã§ã¯åºã¦ããªãã§ãããããã®ä¸æ¹ã§ãæã¡æãééããã¨æãã¾ããHadoopã¯MR2.0ã®ãããªãã®ã«æã伸ã°ãã®ã§ã¯ãªããã¾ã¡ãããªãï¼å¹´åã®æ®µéã§NNã®HAã«ãªã½ã¼ã¹ã®50%以ä¸ãçªã£ããã¹ãã§ããããã®å ´åMapRããã®ä»ã®ãã³ãã¼ã¯ãé¡ä¼¼ã®ãã£ã¹ããªãå½Hadoopã®ãéçºã«ã¯ãããã¨ãèºèºããã¯ãã§ããã»ã¨ãã©ã®å¾çºâHadoopâã¯ãNN/HDFSã®ä¿¡é ¼æ§åé¡ãã®è§£æ±ºã ãã«æ³¨åãã¦ããã®ã¯çç±ãããã¾ãããã®ãããã¯Apacheã®éçã§ãããã
PS:ã¨æ¸ããã¨ããã§ææããã£ãã®ã§è£è¶³ãã¦ããã¾ãã
http://d.hatena.ne.jp/shiumachi/20120408/1333881928
å¶å
ããããææãããã¨ããããã¾ããã
å°ããã®ããã°ã®è¨äºã¯å¾¡å¾çºã®çµé¨ããã®å人çãªææ³ãªã®ã§ãã©ãå¤æããããã¯ãèªã¿æã«ãä»»ããã¾ããï¼
ã¤ã¾ããã¨ã³ã¿ã¼ãã©ã¤ãºã§ã®OSSã¯ãé説çã§ã¯ãããããããªãã«ãããããªå¸å ´ã«ã¯ãªã£ã¦ãã¾ãããããªæãã§ããå¾æ¥ã®ç§æçãªOSSã¨ã¯å¥ã«ããã®å¯¾ç«è»¸ã®åç¨ã½ããã¦ã§ã¢ã®è¶³ä¸ãä¸éæã«ãªã£ã¦ãã¦ããï¼å®éã®OSSã®éçºã¯ä¼æ¥ã«ããã¶ã«ã ã£ãã§ãããã¨ããã®ãç¾ç¶ã§ããã°ãå½ç¶ä½ç½®ã¥ããå¤ãã£ã¦ãã¾ããããããããã¨ã§ãã
ï¼ãªã®ã§ãO.S.S.ã¨ã³ã¿ã¼ãã©ã¤ãºã§è¡ãã¾ããããã¨ããã話ã§ã以ä¸ã§ãããå¥ã«ãã®ãã¿ãè¨ãããããã ãã®ããã°ã§ã¯ãªãã§ãã念ã®ããï¼