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Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...
In this case, if the transaction's timestamp is after the object's read timestamp, the read timestamp is set to the transaction's timestamp. If a transaction wants to write to an object, but the transaction started before the object's read timestamp it means that something has had a look at the object, and we assume it took a copy of the object ...
The term "timestamp" derives from rubber stamps used in offices to stamp the current date, and sometimes time, in ink on paper documents, to record when the document was received. Common examples of this type of timestamp are a postmark on a letter or the "in" and "out" times on a time card .
This signed hash + the timestamp is sent back to the requester of the timestamp who stores these with the original data (see diagram). Since the original data cannot be calculated from the hash (because the hash function is a one way function ), the TSA never gets to see the original data, which allows the use of this method for confidential data.
The current average rate for a 30-year fixed mortgage is 7.11% for purchase and 7.09% for refinance, up 8 basis points from 7.03% for purchase and 6 basis points from 7.03% for refinance this time ...
10. Hopdoddy. Hopdoddy Burger Bar serves elevated burgers made from fresh, never-frozen beef. Its patties are ground in-house and hand-formed every day for the best quality.
From January 2008 to December 2012, if you bought shares in companies when William J. Ryan joined the board, and sold them when he left, you would have a -30.6 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
A signed 32-bit value covers about 68 years before and after the 1970-01-01 epoch. The minimum representable date is Friday 1901-12-13, and the maximum representable date is Tuesday 2038-01-19. One second after 2038-01-19T03:14:07Z this representation will overflow in what is known as the year 2038 problem.