Á¤º¸°úÇÐȸ ³í¹®Áö B : ¼ÒÇÁÆ®¿þ¾î ¹× ÀÀ¿ë
ÇѱÛÁ¦¸ñ(Korean Title) |
ÀÌÁúÀûÀÎ ¸ÖƼµ¥ÀÌŸº£À̽º ȯ°æ¿¡¼ Àü¿ª Á÷·Ä¼ºÀ» À§ÇÑ ¾ö°ÝÇÑ Á¶°Ç |
¿µ¹®Á¦¸ñ(English Title) |
Strict Conditions for Global Serializability in a Heterogeneous Multidatabase Environment |
ÀúÀÚ(Author) |
ÀÌ»ó±Ù
ȲÁ¾¼±
SangKeun Lee
Chongsun Hwang
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 24 NO. 11 PP. 1158 ~ 1169 (1997. 11) |
Çѱ۳»¿ë (Korean Abstract) |
ºñ·Ï ÀÌÀüÀÇ ¿¬±¸µéÀÌ Áö¿ª ÀÚÄ¡¼ºÀ» ħÇØÇÏÁö ¾ÊÀ¸¸é¼ ¼º°øÀûÀ¸·Î Àü¿ª Á÷·Ä¼ºÀ» º¸ÀåÇϱâ´Â ÇÏ¿´Áö¸¸, Áö¿ª ÀÌÁú¼ºÀÌ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇؼ´Â ¸¹Àº ¿¬±¸°¡ ÀÌ·ç¾îÁöÁö ¾Ê¾Ò´Ù. º» ³í¹®¿¡¼´Â, Áö¿ª ÀÌÁú¼ºÀ» Àü¿ª Æ®·£Àè¼Ç°£ÀÇ ºñÁ¤»óÀûÀÎ Á÷Á¢ Ãæµ¹·Î Ư¡Áö¿ì°í, ÀÌ·¯ÇÑ Ãæµ¹ÀÌ ±âÁ¸ÀÇ Àü¿ª µ¿½Ã¼º Á¦¾î À̷аú ƼÄÏ ¿¬»êÀÇ ÃÖÀûÈ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÑ´Ù. ¶ÇÇÑ, Àü¿ª Æ®·£Àè¼Ç °ü¸®ÀÚ°¡ ÀÌÁúÀûÀÎ ¸ÖƼµ¥ÀÌŸº£À̽º ȯ°æ¿¡¼ Àü¿ª Á÷·Ä¼ºÀ» º¸ÀåÇϱâ À§ÇÑ ¾ö°ÝÇÑ Á¶°ÇÀ» Á¦¾ÈÇÑ´Ù. ƯÈ÷, »õ·Î¿î Á÷·Ä¼º ÇüÅ·Π¾ö°ÝÇÑ Ãæµ¹ Á÷·Ä¼º°ú ¾ö°ÝÇÑ °øÀ¯ Á÷·Ä¼ºÀ» Á¦½ÃÇϴµ¥, ÀÌµé »õ·Î¿î Á÷·Ä¼ºÀÇ Æ¯ÀÌÇÑ Á¡Àº Áö¿ª ÀÌÁú¼ºÀ» Çã¿ëÇÏ¸é¼ Àü¿ª Á÷·Ä¼ºÀ» º¸ÀåÇϱâ À§Çؼ´Â Àü¿ª Æ®·£Àè¼ÇÀÇ ¾ö°ÝÇÑ ½ÇÇàÀ» ¿ä±¸ÇÑ´Ù´Â °ÍÀÌ´Ù. ¶ÇÇÑ, ÀÌ µÎ Á÷·Ä¼ºÀ» ½ÃÇàÇÏ´Â ¾ö°ÝÇÑ Àü¿ª Æ®·£Àè¼Ç °ü¸®ÀÚ¸¦ Á¦¾ÈÇÑ´Ù.
|
¿µ¹®³»¿ë (English Abstract) |
Although the previous approaches to global serializability have successfully led to the achievement of global serializability without violation of local autonomy, relatively not much work on the impacts of local heterogeneity has been done. In this paper, we characterize local heterogeneity as abnormal direct conflicts among global transactions and analyze the impacts of abnormal direct conflicts on the theory of global concurrency control and the optimization of ticket operations. Then, strict conditions for global serializability are provided, which are in order for global transaction manager to enforce global serializability in a heterogeneous multidatabase environment. In particular, two new types of serializability, strict conflicting serializability and strict sharing serializability, are proposed. The novelty of two new criteria lies in the fact that strictness af global transactions is found to be a mainly contributing property in achieving global serializability with tolerance of local heterogeneity. We also suggest strict global transaction managers to enforce the two types of serializability.
|
Å°¿öµå(Keyword) |
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|