Cascon intro
- 1. © 2016 IBM Corporation 1 Agenda – CASCON 2016 • Why Node.js ? • Node.js quick look • Node.js community • IBM involvement
- 2. © 2016 IBM Corporation • What is it ? • Ecosystem • Productivity • Performance Why Node.js ? 2
- 3. © 2016 IBM Corporation 3 Why Node.js – What is it? • JavaScript != Java • Node.js = Server-side JavaScript • Event-oriented • Non-blocking • Asynchronous
- 4. http://www.modulecounts.com/ © 2016 IBM Corporation • There is a module for that • 300K modules • #1 on module counts • #1 on Github (#projects) • #1 on StackOverflow(2015) Why Node.js ? – Ecosystem 4
- 5. © 2016 IBM Corporation • Most used runtime in Bluemix TM Why Node.js ? – Ecosystem 5
- 6. Why Node.js ? – Productivity © 2016 IBM Corporation • Faster development less code • PayPal - https://www.paypal-engineering.com/2013/11/22/node-js-at-paypal/ • Took 1/2 time with less people • 33% fewer lines of code • NextFlix- http://www.infoworld.com/article/2610110/javascript/paypal-and-netflix-cozy-up- to-node-js.html 6
- 7. Why Node.js ? – Productivity © 2016 IBM Corporation • Reuse of “isomorphic” code components • Availability of JavaScript talent • Developer satisfaction 7
- 8. Why Node.js ? – Performance © 2016 IBM Corporation Event based: perfect fit for asynchronous non-blocking I/0 8
- 9. Why Node.js ? - Performance © 2016 IBM Corporation • Thousands of concurrent connections • PayPal - https://www.paypal-engineering.com/2013/11/22/node-js-at-paypal/ • Double number of requests/sec • Response times 35% lower • Groupon – http://www.nearform.com/nodecrunch/node-js-becoming-go-technology-enterprise/ • Reduced page load times by 50% 9
- 10. © 2016 IBM Corporation 10 • Key characteristics • Components • Event loop Node.js – Quick Look
- 11. © 2016 IBM Corporation 11 • Small (linux.tar.xz) • Download 8.2MB • Uncompressed 35.5 MB • Fast startup • 40 ms • Small footprint • 16.5 MB Node.js – Deep Dive – Key Characteristics https://nodejs.org/en/download/ https://benchmarking.nodejs.org/
- 12. Node.js – Deep Dive - Components © 2016 IBM Corporation V8 – Javascript Engine V8 JavaScript Engine Libuv Other Dependencies ICU Cares Zlib http_parser … Node Binding Layer Operating System Node Libraries Modules (npm or local) + Application OpenSSL 12
- 13. Node.js – Deep Dive – Event Loop © 2016 IBM Corporation 13
- 14. © 2016 IBM Corporation 14 • History • Day to Day Node.js Community
- 15. © 2016 IBM Corporation 15 • 2009 – written by Ryan Dhal • Jan 2010 - npm • Sep 2010 – Joyent sponsors Node.js • June 2011 – Windows support • 2012 – 2014 – Hand over to Isaac Schlueter, then Timothy J. Fontaine • December 2014 – io.js fork • June 2015 – Node.js Foundation • Oct 2015 – Node.js 4.x unites io.js/node.js 0.12.x lines • Oct 2016 – Node.js 6.x Node.js Community - History
- 16. © 2016 IBM Corporation 16 • TSC - Technical Steering Committee • CTC – Core technical Committee • Collaborators (~76) • Working Groups (Build, LTS, Benchmarking, API etc.) • Teams Node.js Community – Day to Day https://github.com/nodejs/TSC/ https://github.com/nodejs/node/ https://github.com/nodejs/node/blob/master/WORKING_GROUPS.md https://github.com/orgs/nodejs/teams
- 17. © 2016 IBM Corporation 17 • Node.js Community Involvement • V8 Community Involvement • Platform Availability • Tooling Node.js - IBM
- 18. © 2016 IBM Corporation 18 • Leadership • Founding member of Node.js Foundation (1 board member) • 4 CTC/TSC members (+2 past members) • Facilitating multiple working groups Node.js IBM - Node.js Community Involvement
- 19. © 2016 IBM Corporation 19 • Regular contributors • Active in working groups LTS, build, post-mortem, build, security, api, citgm, dev-policy, benchmarking, internationalization • 11 IBMr’s with commit rights • including #2, #5, #15, #28, #39, #42, #46 • Driving support for platforms - Linux on PPC, AIX and Linux on Z Node.js IBM - Node.js Community Involvement
- 20. © 2016 IBM Corporation 20 • Deep expertise at V8 • Developed ports to IBM Platforms • Contribution back to official V8 repositories: https://github.com/v8/v8 • PPC: V8 4.3 and later have full functional PPC implementation • s390: V8 5.1 and later have full functional implementation • ~10-15 commits per week to V8 to maintain PPC/zlinux port • Port to z/OS in progress: • https://github.com/ibmruntimes/v8z/tree/3.28-zos Node.js IBM – V8 Community Involvement
- 21. © 2016 IBM Corporation 21 Node.js IBM – Platform Availability • IBM SDK for Node.js – Shipping Node.js releases since 2013 – 0.10.x + 0.12.x + 4.x + 6.x – Linux on x / p / z, AIX, Windows, Mac – Working on support for z/OS • Community
- 22. © 2016 IBM Corporation 22 Node.js Long Term Support (LTS) https://github.com/nodejs/lts • Current Release – every 6 months – Semver major • LTS release every October – Even semver majors – 30 months of support
- 23. © 2016 IBM Corporation 23 • Appmetrics • Health Center • NodeReport • Core inspection - IDDE/LLNODE • GCMV Node.js IBM – Tooling
- 24. © 2016 IBM Corporation 24 Node.js IBM – Appmetrics https://www.npmjs.com/package/appmetrics
- 25. © 2016 IBM Corporation 25 Node.js IBM – Tooling - Healthcenter https://marketplace.eclipse.org/content/ ibm-monitoring-and-diagnostic-tools- health-center • Free download • Node.js + Java
- 26. © 2016 IBM Corporation 26 Node.js IBM – Tooling - NodeReport NodeReport example - heap out of memory error NodeReport content: ● Event summary ● Node.js and OS versions ● JavaScript stack trace ● Native stack trace ● Heap and GC statistics ● Resource usage ● libuv handle summary ● Environment variables ● OS ulimit settings https://github.com/nodejs/nodereport © 2016 IBM Corporation
- 27. © 2016 IBM Corporation 27 • MDB/LLNODE/IDDE • Working in community to standardize Node.js IBM – Tooling - Core Inspection
- 28. • Free download • --trace_gc • --trace_gc_nvp • --trace_gc_verbose • Node.js + Java © 2016 IBM Corporation 28 Node.js IBM – Tooling - GCMV https://marketplace.eclipse.org/content/ ibm-monitoring-and-diagnostic-tools- garbage-collection-and-memory- visualizer-gcmv
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