Release

C20f7f4a8aa455aa6e0c2a0092883cd0?s=47 Roberto Aloi
October 17, 2012

 Release

A high-level paradigm for reliable large-scale server software.
Copyright 2012 - Erlang Solutions Ltd. (http://www.erlang-solutions.com)

C20f7f4a8aa455aa6e0c2a0092883cd0?s=128

Roberto Aloi

October 17, 2012
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Transcript

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    RELEASE STATEMENT OF AIMS “To scale the radical concurrency- oriented

    programming paradigm to build reliable general-purpose software, such as server-based systems, on massively parallel machines (10^5 cores).”
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    • OPEN SOURCE • CONCURRENCY-ORIENTED • LIGHTWEIGHT PROCESSES (10.000 PER

    CORE) • ASYNCHRONOUS MESSAGE PASSING • SHARE-NOTHING MODEL • PROCESS LINKING / MONITORING • SUPERVISION TREES AND RECOVERY STRATEGIES • TRANSPARENT DISTRIBUTION MODEL • SOFT-REAL TIME • LET-IT-FAIL PHILOSOPHY • HOT-CODE UPGRADES WHAT IS ERLANG ... AND MUCH MORE
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    WP4 Scalable Infrastructure WP3 SD Erlang Language WP2 Virtual Machine

    WP5 Tools WP6 Case Studies LIMITATIONS ARE PRESENT AT THREE LEVELS
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    • PUSH THE RESPONSIBILITY FOR SCALABILITY FROM THE PROGRAMMER TO

    THE VM • ANALYZE PERFORMANCE AND SCALABILITY • IDENTIFY BOTTLENECKS AND PRIORITIZE CHANGES AND EXTENSIONS • TACKLE WELL-KNOWN SCALABILITY ISSUES • ETS TABLES (SHARED GLOBAL DATA STRUCTURE) • MESSAGE PASSING, COPYING AND FREQUENTLY COMMUNICATING PROCESSES VM LANGUAGE INFRASTRUCTURE
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    VM LANGUAGE INFRASTRUCTURE • TWO MAJOR ISSUES • FULLY CONNECTED

    CLUSTERS • EXPLICIT PROCESS PLACEMENT • SCALABLE DISTRIBUTED (SD) ERLANG • NODES GROUPING • NON-TRANSITIVE CONNECTIONS • IMPLICIT PROCESS PLACEMENT • PART OF THE STANDARD ERLANG/OTP PACKAGE • NEW CONCEPTS INTRODUCED • LOCALITY, AFFINITY AND DISTANCE
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    E r l a n g ( p ro ce

    s s e s) VM LANGUAGE INFRASTRUCTURE
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    E r l a n g ( p ro ce

    s s e s) OT P (a p p l i c at i o n s) VM LANGUAGE INFRASTRUCTURE
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    ? (n o d e s) E r l a

    n g ( p ro ce s s e s) OT P (a p p l i c at i o n s) VM LANGUAGE INFRASTRUCTURE
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    ? (n o d e s) E r l a

    n g ( p ro ce s s e s) OT P (a p p l i c at i o n s) VM LANGUAGE INFRASTRUCTURE Scalability Layer Missing
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    • MIDDLEWARE LAYER • SET OF ERLANG APPLICATIONS • CREATE

    AND MANAGE CLUSTERS OF (HETEROGENEOUS) ERLANG NODES • API TO MONITOR AND CONTROL ERLANG DISTRIBUTED SYSTEMS • EXISTING TRACING/LOGGING/DEBUGGING TOOLS PLUGGABLE • BROKER LAYER BETWEEN USERS AND CLOUD PROVIDERS • AUTO-SCALING VM LANGUAGE INFRASTRUCTURE CCL /sɪˈsɪlɪ/ ... AND MUCH MORE
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    • TOOLS • MONITORING, TRACING, DEBUGGING • FOCUS ON MASSIVE

    PARALLEL SYSTEMS • REFACTORING TO SD ERLANG (WRANGLER) • CASE STUDIES • SIM-DIASCA TOOLS AND CASE STUDIES
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    QUESTIONS? MORE INFO AT: h t t p : /

    / r e l e a s e - p r o j e c t . e u @robertoaloi