Observability and Control Theory

Ee5407f7a79eb620c4fd54c136847b33?s=47 Piyush Verma
November 16, 2019
Programming
0
200

Observability and Control Theory

Ee5407f7a79eb620c4fd54c136847b33?s=128

Piyush Verma

November 16, 2019
Tweet

More Decks by Piyush Verma

See All by Piyush Verma
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
31
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
57
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
50
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
31
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
44
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
16
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
19
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
39
Ee5407f7a79eb620c4fd54c136847b33?s=48 meson10
0
110

Other Decks in Programming

See All in Programming
9f33218af7ae5c04e102fcc3076f2f5c?s=48 yhkaplan
1
350
6a87c9bfc71c805c3f5f248b359365d3?s=48 mu2in
0
560
933291444e456bfb511a66a2fa9c6929?s=48 j5ik2o
1
400
B069f7370d535b5060250cfa6bd38b83?s=48 kuroyam
1
110
6139fd48daa26e786794598c4a6b546a?s=48 ninjinkun
2
320
C2916036a7a60f722f34faad5ef38316?s=48 minako__ph
1
550
2102a6b8760bd6f57f672805723dd83a?s=48 line_developers_tw
0
2.7k
15934fa2aa7b2ce21f091e9b7cffa856?s=48 manfredsteyer
1
250
15934fa2aa7b2ce21f091e9b7cffa856?s=48 manfredsteyer
1
350
1102d6e3810fcc652a8b2887d1642ade?s=48 47degacademy
0
210
4861686276b2f990387eaef28b099db0?s=48 niyarin
1
370
933291444e456bfb511a66a2fa9c6929?s=48 j5ik2o
4
1k

Featured

See All Featured
39488f9d172ab92fd352f2cd7b73258d?s=48 mza
80
4k
Ded01cdab114abe4ec13511e4c25b9bb?s=48 andyhume
60
2.4k
1177e050db6bafe62885362edf6e3537?s=48 lauravandoore
8
1.1k
F383c6a4dc55e331bbe2987b622cee6b?s=48 stephaniewalter
256
11k
B3d6434763caa0ef5dc4b792662c49f7?s=48 smashingmag
281
46k
433acaea1012b25d97ae66da9b998dad?s=48 malarkey
392
60k
282d599b414022eba5096510f675b6e2?s=48 chrislema
231
16k
A60068bce2e73de3a37ca9d2dbe36092?s=48 bryan
100
11k
F57e2136eb9895eb95ff5dc8a1c02677?s=48 zakiwarfel
87
3.2k
24fc194843a71f10949be18d5a692682?s=48 gr2m
82
11k
761be20b5ebd271008bcee1244fc5b52?s=48 matthewcrist
71
7k
C620790ae5bf5b50c245b2e0ef95f338?s=48 deanohume
294
27k

Transcript

  1. Observability & Control Theory

  2. Question

  3. Question

  4. Question

  5. Monitoring!! Answer

  6. • You monitor what you know • You react after

    it has failed. • What about unknown-unknowns? • Doesn’t avoid failures. • Tells something broke and now it isn’t. • Always a comparative operator. Question: What is Monitoring?

  7. • Systems are Distributed. • What about? ◦ Accuracy ◦

    Latency ◦ Correctness ◦ Consistency • It’s till or from Now. What are we missing?

  8. Monitoring Timeline Late 2000s • SOA Early 2010 • Microservices

    1990s • Servers 2000s • Monolith Now Lambda

  9. The REAL question If a tree falls in a forest

    and nobody heard it, did it make a sound?

  10. The REAL answer All falling trees yield Logs.

  11. Software, by default, is opaque. To debug & control a

    running system, you need observation pre-built.

  12. Observability

  13. Need - Debugging - Pattern Detection

  14. None

  15. Unlike monitoring, observability is not failure-centric. If your job allows,

    you can use it to understand system performance, just-like-that. ¯\_(ツ)_/¯

  16. Stability

  17. Control Theory

  18. Control Theory

  19. Example

  20. TCP Flow Control

  21. TCP Flow Control

  22. TCP Congestion Control

  23. TCP Congestion Control

  24. Practical Applications

  25. • Constrained Optimization Problems • Constraint Scaling Problems Practical Applications

  26. Auto-Scaling

  27. Cache

  28. Gateway

  29. Load-Balancer

  30. Progressive Streaming

  31. Software, by default, is opaque. To debug & control a

    running system, you need observation pre-built.

  32. Thank You - Piyush Verma