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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ÄÄÇ»ÅÍ ¹× Åë½Å½Ã½ºÅÛ

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ÇѱÛÁ¦¸ñ(Korean Title) ¼­¹ö Ŭ·¯½ºÅÍ È¯°æ¿¡¼­ ÀÚÀ²ÇнÀ±â¹ÝÀÇ ¿¡³ÊÁö È¿À²ÀûÀΠŬ·¯½ºÅÍ °ü¸® ±â¹ý
¿µ¹®Á¦¸ñ(English Title) An Energy Efficient Cluster Management Method based on Autonomous Learning in a Server Cluster Environment
ÀúÀÚ(Author) Á¶¼ºÃ¶   °ûÈı٠  Á¤±Ô½Ä   Sungchul Cho   Hukeun Kwak   Kyusik Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 04 NO. 06 PP. 0185 ~ 0196 (2015. 06)
Çѱ۳»¿ë
(Korean Abstract)
¿¡³ÊÁö Àý°¨Çü ¼­¹ö Ŭ·¯½ºÅÍ´Â ¿¡³ÊÁö Àý°¨À» °í·ÁÇÏÁö ¾Ê´Â ±âÁ¸ ¼­¹ö Ŭ·¯½ºÅÍ¿¡ ºñÇØ ¼­ºñ½º Ç°ÁúÀ» º¸ÀåÇϸ鼭 Àü·Â¼Òºñ¸¦ Àý°¨ÇÏ´Â °ÍÀ» ¸ñÇ¥·Î ÇÑ´Ù. ¿¡³ÊÁö Àý°¨Çü ¼­¹ö Ŭ·¯½ºÅÍ¿¡¼­´Â ÇöÀçÀÇ ºÎÇϸ¦ ó¸®ÇÏ´Â µ¥ ÇÊ¿äÇÑ ÃÖ¼Ò¼öÀÇ ¼­¹öµé¸¸ ON Çϵµ·Ï °íÁ¤ ¶Ç´Â °¡º¯ ÁÖ±â·Î ¼­¹öµéÀÇ Àü¿ø¸ðµå¸¦ Á¶Á¤ÇÑ´Ù. ÀÌ¿¡ ´ëÇÑ ±âÁ¸ ¿¬±¸µéÀº Àü·Â Àý°¨ ¶Ç´Â ¼­ºñ½º Ç°ÁúÀ» º¸ÀåÇÏ·Á°í ³ë·ÂÇØ¿ÔÁö¸¸ ¿¡³ÊÁö È¿À²¼ºÀ» Àß °í·ÁÇÏÁö´Â ¸øÇß´Ù. º» ³í¹®¿¡¼­´Â ¿¡³ÊÁö Àý°¨Çü Ŭ·¯½ºÅÍ¿¡¼­ ÀÚÀ²ÇнÀ±â¹ÝÀÇ ¿¡³ÊÁö È¿À²ÀûÀΠŬ·¯½ºÅÍ °ü¸® ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ÀÚÀ²ÇнÀÀ» ÅëÇØ ÃÖÀûÈ­µÈ ÆĶó¹ÌÅ͵éÀ» ÀÌ¿ëÇÏ¿© Àü·Â ¼Ò¸ð ´ëºñ ÃÖ°íÀÇ ¼º´ÉÀ» ¾òÀ» ¼ö ÀÖµµ·Ï ¼­¹ö Àü¿ø¸ðµå¸¦ Á¶Á¤ÇÑ´Ù. Á¦¾È¹æ¹ýÀº ¼­¹ö Àü¿ø¸ðµå Á¶Á¤À» À§ÇØ ¾Æ·¡ÀÇ °úÁ¤À» ¹Ýº¹ ¼öÇàÇÑ´Ù. ù°, ÇöÀç ºÎÇÏ ¹× Æ®·¡ÇÈ ÆÐÅÏÀ» º¸°í ÇöÀç ¿öÅ©·Îµå ÆÐÅÏ À¯ÇüÀ» »çÀü¿¡ Á¤ÀÇÇÑ ´ë·Î ºÐ·ùÇÑ´Ù. µÑ°, ÇнÀ Å×À̺íÀ» Ž»öÇÏ¿© ÇØ´ç ¿öÅ©·Îµå ÆÐÅÏ À¯Çü¿¡ ´ëÇØ ¿¹Àü¿¡ ÇнÀÀÌ ¼öÇàµÇ¾ú´ÂÁö È®ÀÎÇÑ´Ù. ¸¸ÀÏ ¼öÇàµÇ¾ú´Ù¸é ÀÌ¹Ì ÀúÀåµÈ ÆĶó¹ÌÅ͸¦ ÀÌ¿ëÇÑ´Ù. ±×·¸Áö ¾ÊÀ¸¸é, ÇнÀÀ» ¼öÇàÇÏ¿© ¿¡³ÊÁö È¿À²¼º °üÁ¡¿¡¼­ ÃÖ°íÀÇ ÆĶó¹ÌÅ͸¦ ¾ò¾î ÀúÀåÇÑ´Ù. ¼Â°, ¾ò¾îÁø ÆĶó¹ÌÅ͸¦ ÀÌ¿ëÇÏ¿© ¼­¹ö Àü¿ø¸ðµå¸¦ Á¶Á¤ÇÑ´Ù. Á¦¾È¹æ¹ýÀ» ±¸ÇöÇÏ¿© 16°³ÀÇ ¼­¹ö Ŭ·¯½ºÅÍ È¯°æ¿¡¼­ 3°¡Áö ´Ù¸¥ ºÎÇÏ ÆÐÅϵéÀ» ÀÌ¿ëÇÏ¿© ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÇè °á°ú´Â Á¦¾È¹æ¹ýÀÇ ¿¡³ÊÁö È¿À²¼ºÀÌ ¶Ù¾î³²À» º¸¿©ÁÖ°í ÀÖ´Ù. ¹ðÅ· ºÎÇÏÆÐÅÏ, ½ÇÁ¦ ºÎÇÏÆÐÅÏ, °¡»ó ºÎÇÏÆÐÅÏ °¢°¢¿¡ ´ëÇÏ¿©, Á¦¾È¹æ¹ýÀÇ ´ÜÀ§Àü·Â´ç good ÀÀ´ä ¼ö°¡ ±âÁ¸ÀÇ Á¤Àû ¼­¹ö Àü¿ø¸ðµå Á¦¾î¹æ¹ýÀÇ 99.9%, 107.5%, 141.8%ÀÌ°í, ±âÁ¸ÀÇ ¿¹Ãø¹æ¹ýÀÇ 102.0%, 107.0%, 106.8%ÀÌ´Ù.
¿µ¹®³»¿ë
(English Abstract)
Energy aware server clusters aim to reduce power consumption at maximum while keeping QoS(Quality of Service) compared to energy non-aware server clusters. They adjust the power mode of each server in a fixed or variable time interval to let only the minimum number of servers needed to handle current user requests ON. Previous studies on energy aware server cluster put efforts to reduce power consumption further or to keep QoS, but they do not consider energy efficiency well. In this paper, we propose an energy efficient cluster management based on autonomous learning for energy aware server clusters. Using parameters optimized through autonomous learning, our method adjusts server power mode to achieve maximum performance with respect to power consumption. Our method repeats the following procedure for adjusting the power modes of servers. Firstly, according to the current load and traffic pattern, it classifies current workload pattern type in a predetermined way. Secondly, it searches learning table to check whether learning has been performed for the classified workload pattern type in the past. If yes, it uses the already-stored parameters. Otherwise, it performs learning for the classified workload pattern type to find the best parameters in terms of energy efficiency and stores the optimized parameters. Thirdly, it adjusts server power mode with the parameters. We implemented the proposed method and performed experiments with a cluster of 16 servers using three different kinds of load patterns. Experimental results show that the proposed method is better than the existing methods in terms of energy efficiency: the numbers of good response per unit power consumed in the proposed method are 99.8%, 107.5% and 141.8% of those in the existing static method, 102.0%, 107.0% and 106.8% of those in the existing prediction method for banking load pattern, real load pattern, and virtual load pattern, respectively.
Å°¿öµå(Keyword) Àü¿ø¸ðµå Á¦¾î   QoS   ¼ÒºñÀü·Â   ÀÚÀ²ÇнÀ   ¿¹Ãø ¾Ë°í¸®Áò   Power Mode Control   QoS   Power Consumption   Autonomous Learning   Prediction Algorithm  
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