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Erlang (/ ˈ ɜːr l æ ŋ / UR-lang) is a general-purpose, concurrent, functional high-level programming language, and a garbage-collected runtime system.The term Erlang is used interchangeably with Erlang/OTP, or Open Telecom Platform (OTP), which consists of the Erlang runtime system, several ready-to-use components (OTP) mainly written in Erlang, and a set of design principles for Erlang ...
The Erlang C formula expresses the probability that an arriving customer will need to queue (as opposed to immediately being served). [10] Just as the Erlang B formula, Erlang C assumes an infinite population of sources, which jointly offer traffic of erlangs to servers. However, if all the servers are busy when a request arrives from a source ...
The functional block which is run as a transaction is a commonplace Erlang construct called a Functional Object (or Fun) [10] and is called by the single Mnesia statement mnesia:transaction(F). This can lead to clearer source code than the paired BEGIN / COMMIT syntax of SQL, and so avoids its problem of unclosed transactions within a procedure.
Erlang (programming language), a programming language Erlang (unit) , a unit to measure traffic in telecommunications or other domains Erlang distribution , a probability distribution describing the time between events
In telecommunications networks, traffic intensity is a measure of the average occupancy of a server or resource during a specified period of time, normally a busy hour.It is measured in traffic units and defined as the ratio of the time during which a facility is cumulatively occupied to the time this facility is available for occupancy.
The Erlang distribution is the distribution of a sum of independent exponential variables with mean / each. Equivalently, it is the distribution of the time until the k th event of a Poisson process with a rate of λ {\displaystyle \lambda } .
Erlang Shen, or simply Erlang, is a god in Chinese folk religion and Daoism, associated with water (flood control), justice, warriorhood, hunting, and demon subdual. He is commonly depicted as a young man with a third, truth-seeing eye in the middle of his forehead, wielding a three-pronged spear, and being accompanied by his loyal hunting dog, Xiaotian Quan.
As a result of using Erlang, LYME and LYCE applications perform well under high load [1] and if distribution and fault tolerance is needed. [ 2 ] The query and data manipulation language of Mnesia is also Erlang (rather than SQL ), therefore a web-application for LYME is developed using only a single programming language.