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Discuss The Advantages And Disadvantages Of The Two Methods That We Presented In Section 19.5.2 For Generating Globally Unique Time Stamps? |
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Answer» The centralized approach has the problem of a possible BOTTLENECK at the central site and the problem of electing a new central site if it goes down. The distributed approach has the problem that many messages must be exchanges to KEEP the system fair, or ONE site can get ahead of all other sites and DOMINATE the DATABASE. The centralized approach has the problem of a possible bottleneck at the central site and the problem of electing a new central site if it goes down. The distributed approach has the problem that many messages must be exchanges to keep the system fair, or one site can get ahead of all other sites and dominate the database. |
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