But at the same time, Ruby On Rails proved to be unprepared for creating Web services with an incessant and growing demand for resources. Twitter was always at the limit of its resources, and very frequently during 2007, the number of requests to its databases exceeded its possibilities, and it was taken out of service. During 2007 and 2008, most of Twitter's developers' efforts were focused on how to make the system more stable and reliable. That is, to establish reasonable uptime times, since these problems irritated users a lot.
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