Liquid Stream Processing Across Web Browsers and Web Servers
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The document discusses liquid stream processing in web browsers and servers, highlighting the usage of WebRTC technology. It includes an example of a JavaScript code snippet for sending temperature data through a defined topology. The authors address aspects such as operator elasticity and fault tolerance in stream processing.
![{
topology : {
id : “HAS_topology”,
operators : [
{
id : “producer”,
script : “pi_prod.js”,
constraints : [“temperature”],
},
…
],
bindings : [
{
from : “producer”,
to : [“filter”, “web_consumer_1”]
type : “broadcast”
},
…
]
}
}
5](https://image.slidesharecdn.com/icwe-150915093612-lva1-app6892/85/Liquid-Stream-Processing-Across-Web-Browsers-and-Web-Servers-5-320.jpg)
Liquid Stream Processing Across Web Browsers and Web Servers
- 1. Liquid Stream Processing Across Web Browsers and Web Servers Masiar Babazadeh @masiarb Andrea Gallidabino @agallidabino Cesare Pautasso @pautasso University of Lugano Switzerland name.surname@usi.ch 1
- 3. WebRTC 3
- 4. var k = require('wls.js'); setInterval(function(){ getTemperature( function(temp, sensor_id){ k.send({ "temperature" : temp, "id" : sensor_id, "ts" : new Date().getTime(), }); } ); }, 1000); 4
- 5. { topology : { id : “HAS_topology”, operators : [ { id : “producer”, script : “pi_prod.js”, constraints : [“temperature”], }, … ], bindings : [ { from : “producer”, to : [“filter”, “web_consumer_1”] type : “broadcast” }, … ] } } 5
- 6. 6 C C P C F
- 7. 6 C C P C F
- 8. 7
- 9. 8
- 10. 8 Filter Peers
- 11. 8 Filter Peers Compute the ranking
- 12. F CP F 9
- 13. F CP F 9
- 14. F CP F C 9
- 15. F CP F C 9
- 16. F CP F C 9
- 17. F C P 10
- 18. F C P 10
- 19. 11 F C P
- 20. 11 F C P
- 21. 11 F P
- 22. 11 F P C
- 23. 11 F P C
- 35. FX 14 C C P C
- 36. FX 14 C C P C
- 37. 14 C C P C
- 38. F 14 C C P C
- 39. 15
- 40. P F C 16
- 41. 17 P F C
- 42. F 18 1
- 43. 19 Every 10k msgs Every 5k msgs 1 Disconnection
- 44. 20 2
- 45. 21 2
- 46. 22 2
- 47. 23
- 48. 2424
- 49. 2424
- 50. 2424
- 51. 2424
- 52. 2424
- 53. 2424
- 54. 2424
- 55. 2424
- 56. 2424
- 57. 2424
- 58. 25 WebRTC
- 59. 26 Thank you. Liquid Stream Processing Across Web Browsers and Web Servers Masiar Babazadeh @masiarb Andrea Gallidabino @agallidabino Cesare Pautasso @pautasso name.surname@usi.ch