Cloud Computing Theory and Practice chapter 2 problem 7 Tuple-spaces can be thought of as an implementation of a distributed shared- memory. Tuple-spaces have been developed for many programming languages including Java, Lisp, Python, Prolog, Smalltalk, and Tcl. Explain briefly how tuple spaces work. How secure and scalable are the tuple spaces you are familiar with, e.g., JavaSpaces?
Solution
Definition :
A tuple space is an execution of the associative memory model for distributed/parallel computing. It offers a library of tuples, which can be accessed simultaneously. Tuples are terms with zero or more arguments and a key.
Explanation:
The collection of tuples supports some basic operations, such as adding a tuple to the space (write) and removing a tuple from the space (take). The tuple collection is kept and managed over a network of multiple tuple space servers.
A tuple space is, as its name suggests, a place where processes can put, read, and take tuples, which are in turn just sequences of values is a tuple made up of a string, an integer, and a floating-point number; a tuple space can contain zero or more copies of that tuple, or of tuples containing other types of values, simple or complex.
A process puts something in tuple space with put(value, value, ...). It can take something out with take(...), or copy something (leaving the original in tuple space) with copy(...). The arguments to take(...) and copy(...) are either actual values, or variables with specific types; values match themselves, while types match things of that type.
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Cloud Computing Theory and Practice chapter 2 problem 7 Tuple-spaces c.docx
1. Cloud Computing Theory and Practice chapter 2 problem 7 Tuple-spaces can be thought of as an
implementation of a distributed shared- memory. Tuple-spaces have been developed for many
programming languages including Java, Lisp, Python, Prolog, Smalltalk, and Tcl. Explain briefly
how tuple spaces work. How secure and scalable are the tuple spaces you are familiar with, e.g.,
JavaSpaces?
Solution
Definition :
A tuple space is an execution of the associative memory model for distributed/parallel
computing. It offers a library of tuples, which can be accessed simultaneously. Tuples are terms
with zero or more arguments and a key.
Explanation:
The collection of tuples supports some basic operations, such as adding a tuple to the space
(write) and removing a tuple from the space (take). The tuple collection is kept and managed
over a network of multiple tuple space servers.
A tuple space is, as its name suggests, a place where processes can put, read, and take tuples,
which are in turn just sequences of values is a tuple made up of a string, an integer, and a
floating-point number; a tuple space can contain zero or more copies of that tuple, or of tuples
containing other types of values, simple or complex.
A process puts something in tuple space with put(value, value, ...). It can take something out with
take(...), or copy something (leaving the original in tuple space) with copy(...). The arguments to
take(...) and copy(...) are either actual values, or variables with specific types; values match
themselves, while types match things of that type.
