Improving the network scalability of Erlang

Chechina, Natalia and Li, Huiqing and Ghaffari, Amir and Thompson, Simon and Trinder, Phil (2016) Improving the network scalability of Erlang. Journal of Parallel and Distributed Computing, 90-91 . pp. 22-34. ISSN 0743-7315. (doi:https://doi.org/10.1016/j.jpdc.2016.01.002) (Full text available)

Abstract

As the number of cores grows in commodity architectures so does the like- lihood of failures. A distributed actor model potentially facilitates the de- velopment of reliable and scalable software on these architectures. Key com- ponents include lightweight processes which ‘share nothing’ and hence can fail independently. Erlang is not only increasingly widely used, but the un- derlying actor model has been a beacon for programming language design, influencing for example Scala, Clojure and Cloud Haskell. While the Erlang distributed actor model is inherently scalable, we demon- strate that it is limited by some pragmatic factors. We address two network scalability issues here: globally registered process names must be updated on every node (virtual machine) in the system, and any Erlang nodes that com- municate maintain an active connection. That is, there is a fully connected O(n^2) network of n nodes. We present the design, implementation, and initial evaluation of a con- servative extension of Erlang – Scalable Distributed (SD) Erlang. SD Erlang partitions the global namespace and connection network using s groups. An s group is a set of nodes with its own process namespace and with a fully connected network within the s group, but only individual connections out- side it. As a node may belong to more than one s group it is possible to construct arbitrary connection topologies like trees or rings.

Item Type: Article
Projects: [UNSPECIFIED] RELEASE
Uncontrolled keywords: Erlang, distributed system, SD Erlang, s_group, scalability
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Programming Languages and Systems Group
Depositing User: Simon Thompson
Date Deposited: 10 Feb 2016 13:26 UTC
Last Modified: 02 Mar 2016 19:09 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/54099 (The current URI for this page, for reference purposes)
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