Bøger af Charles Bell

"Learn how to make arduino and Raspberry Pi-based sensor networks."--Cover.

Server bottlenecks and failures are a fact of life in any database deployment, but they dont have to bring everything to a halt. This practical book explains replication, cluster, and monitoring features that can help protect your MySQL system from outages, whether its running on hardware, virtual machines, or in the cloud.Written by engineers who designed many of the tools covered, this book reveals undocumented or hard-to-find aspects of MySQL reliability and high availabilityknowledge thats essential for any organization using this database system. This second edition describes extensive changes to MySQL tools. Versions up to 5.5 are covered, along with several 5.6 features.Learn replication fundamentals, including use of the binary log and MySQL Replicant LibraryHandle failing components through redundancyScale out to manage read-load increases, and use data sharding to handle large databases and write-load increasesStore and replicate data on individual nodes with MySQL ClusterMonitor database activity and performance, and major operating system parametersKeep track of masters and slaves, and deal with failures and restarts, corruption, and other incidentsExamine tools including MySQL Enterprise Monitor, MySQL Utilities, and GTIDs

This 1833 study of the hand by Sir Charles Bell, a leading professor of surgery and anatomy, is one of the Bridgewater Treatises, which arose from the preoccupation of nineteenth-century Christians with interpreting God's creation in the light of contemporary scientific developments. Bell's treatise suggests that by looking in close detail at small subjects, God's role in creation can be clearly seen, whereas more general studies of the universe and the great natural cycles of astronomy and geology can obscure the intelligence behind their specific features. Bell stresses the importance of the hand in human history, the progress of society and the development of technology and design. He considers aspects of the mechanical systems of other animals, and sees their structure as a product of their function. This comparison serves to link humans with other creatures, but also defines their superiority through the sublimity of design.