Обзор использования mRuby для создания легковесных API. Что такое mRuby и чем оно лучше или хуже Ruby.

1. Lightweight APIs in mRuby
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2. Who am I
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3. Who am I
Name's Mikhail Bortnyk
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4. Who am I
Name's Mikhail Bortnyk
Ruby developer and team leader in R&R Music Ukraine
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5. Who am I
Name's Mikhail Bortnyk
Ruby developer and team leader in R&R Music Ukraine
Co-creator of Kottans school
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6. Who am I
Name's Mikhail Bortnyk
Ruby developer and team leader in R&R Music Ukraine
Co-creator of Kottans school
Geek, polyglot, software development addict
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7. Who am I
Name's Mikhail Bortnyk
Ruby developer and team leader in R&R Music Ukraine
Co-creator of Kottans school
Geek, polyglot, software development addict
github: @vessi
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8. Who am I
Name's Mikhail Bortnyk
Ruby developer and team leader in R&R Music Ukraine
Co-creator of Kottans school
Geek, polyglot, software development addict
github: @vessi
twitter: @mikhailbortnyk
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9. What is mRuby
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10. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
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11. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
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12. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
can compile your software into bytecode
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13. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
can compile your software into bytecode
can generate C code for embedding bytecode
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14. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
can compile your software into bytecode
can generate C code for embedding bytecode
author: Yukihiro 'matz' Matsumoto
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15. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
can compile your software into bytecode
can generate C code for embedding bytecode
author: Yukihiro 'matz' Matsumoto
github: github://mruby/mruby
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16. What is mRuby
mRuby is lightweight implementation of Ruby complying (partially) to ISO/IEC
30170:2012
can be linked and embedded into your application
can compile your software into bytecode
can generate C code for embedding bytecode
author: Yukihiro 'matz' Matsumoto
github: github://mruby/mruby
latest version: 1.1.0
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17. Typical Rails project
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18. Typical Rails project (I am so
sorry for it, mom!)
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19. Typical Rails project
it's based on Rack
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20. Typical Rails project
it's based on Rack
it contains a lot of business processes
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21. Typical Rails project
it's based on Rack
it contains a lot of business processes
it responds to many routes
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22. Typical Rails project
it's based on Rack
it contains a lot of business processes
it responds to many routes
often too heavy to serve tons of lightweight requests without scaling
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23. Typical Rails project
it's based on Rack
it contains a lot of business processes
it responds to many routes
often too heavy to serve tons of lightweight requests without scaling
So, what is the solution?
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24. Solutions
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25. Solutions
You have a problem and decide to use threads. Two now problems have you.
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26. Solutions
You have a problem and decide to use threads. Two now problems have you.
You have a problem and decide to use functional languages. Now your problems are
immutable.
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27. Solutions
You have a problem and decide to use threads. Two now problems have you.
You have a problem and decide to use functional languages. Now your problems are
immutable.
You have a problem and decide to use Java. Now you have ProblemsFactory.
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28. Solutions
You have a problem and decide to use threads. Two now problems have you.
You have a problem and decide to use functional languages. Now your problems are
immutable.
You have a problem and decide to use Java. Now you have ProblemsFactory.
You have a problem and decide...
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29. Kill it with fire!
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30. Kill it with fire!
Microservices
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31. Microservices
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32. Microservices
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33. Microservices
The idea is to split big project in bunch of independent lightweight services.
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34. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
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35. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
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36. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
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37. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
be stable
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38. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
be stable
don't switch technology stack aggresively
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39. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
be stable
don't switch technology stack aggresively
So, I decided to use mRuby. What do we have for serving web here?
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40. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
be stable
don't switch technology stack aggresively
So, I decided to use mRuby. What do we have for serving web here?
mod_mruby. Apache module that executes mRuby code inside Apache process.
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41. Microservices
The idea is to split big project in bunch of independent lightweight services.
Requirements:
be fast
be lightweight
be stable
don't switch technology stack aggresively
So, I decided to use mRuby. What do we have for serving web here?
mod_mruby. Apache module that executes mRuby code inside Apache process.
ngx_mruby. Perfectly the same but with Nginx flavour.
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42. Little demonstration
Microservice without any service
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43. Little demonstration
Used software:
nginx (ALL)
docker (ALL)
docker-compose (ALL)
mongodb (ALL)
ab (ALL)
unicorn gem (rack)
rack gem (rack)
rack-routing gem (rack)
mongo gem (rack)
ngx_mruby (mRuby)
mruby-mongo (mRuby)
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44. Rack execution
$> cd testlab/rack
$> docker-compose up
$> ab -n 10000 -c 100 http://192.168.0.100:10080/api/contacts
# and kill docker-compose with ^C
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45. Rack stats (page 1)
Document Path: /api/contacts
Document Length: 537 bytes
Concurrency Level: 100
Time taken for tests: 7.897 seconds
Complete requests: 10000
Failed requests: 4399
(Connect: 0, Receive: 0, Length: 4399, Exceptions: 0)
Non-2xx responses: 5601
Total transferred: 5080859 bytes
HTML transferred: 3434440 bytes
Requests per second: 1266.27 [#/sec] (mean)
Time per request: 78.972 [ms] (mean)
Time per request: 0.790 [ms] (mean, across all concurrent requests)
Transfer rate: 628.29 [Kbytes/sec] received
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46. Rack stats (page 2)
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 4 4.1 2 34
Processing: 1 74 72.1 23 423
Waiting: 1 74 72.0 22 423
Total: 2 78 72.2 27 426
Percentage of the requests served within a certain time (ms)
50% 27
66% 135
75% 147
80% 154
90% 174
95% 192
98% 216
99% 232
100% 426 (longest request)
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47. mRuby execution
$> cd testlab/rack
$> docker-compose up
$> ab -n 10000 -c 100 http://192.168.0.100:10080/api/contacts
# and kill docker-compose with ^C
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48. mRuby stats (page 1)
Document Path: /api/contacts
Document Length: 98 bytes
Concurrency Level: 100
Time taken for tests: 6.721 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 2140000 bytes
HTML transferred: 980000 bytes
Requests per second: 1487.83 [#/sec] (mean)
Time per request: 67.212 [ms] (mean)
Time per request: 0.672 [ms] (mean, across all concurrent requests)
Transfer rate: 310.93 [Kbytes/sec] received
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49. mRuby stats (page 2)
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 3 5.9 0 29
Processing: 5 64 27.5 68 132
Waiting: 5 64 27.6 68 131
Total: 14 67 24.4 69 132
Percentage of the requests served within a certain time (ms)
50% 69
66% 78
75% 83
80% 88
90% 102
95% 106
98% 112
99% 120
100% 132 (longest request)
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50. Problems
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51. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
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52. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
you have to recompile mRuby each time you add some dependency
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53. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
you have to recompile mRuby each time you add some dependency
oftenly gems are written in pure C
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54. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
you have to recompile mRuby each time you add some dependency
oftenly gems are written in pure C
mRuby has no require keyword, so you code will not be so DRY as you want
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55. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
you have to recompile mRuby each time you add some dependency
oftenly gems are written in pure C
mRuby has no require keyword, so you code will not be so DRY as you want
still not so fast as pure C implementation :(
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56. Problems
Everything has its price. ngx_mruby and Nginx and mRuby are not exceptions.
you have to recompile mRuby each time you add some dependency
oftenly gems are written in pure C
mRuby has no require keyword, so you code will not be so DRY as you want
WRONG!
still not so fast as pure C implementation :(
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57. mruby-require to the rescue!
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58. mruby-require to the rescue!
mruby-require allows you both to don't hold some gems in your mRuby virtual machine and
to require your own code.
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59. mruby-require to the rescue!
mruby-require allows you both to don't hold some gems in your mRuby virtual machine and
to require your own code.
located at: github://mattn/mruby-require
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60. mruby-require to the rescue!
mruby-require allows you both to don't hold some gems in your mRuby virtual machine and
to require your own code.
located at: github://mattn/mruby-require
gems that are located in build_config.rb before mruby-require - are included in mRuby
VM, after - are not
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61. mruby-require to the rescue!
mruby-require allows you both to don't hold some gems in your mRuby virtual machine and
to require your own code.
located at: github://mattn/mruby-require
gems that are located in build_config.rb before mruby-require - are included in mRuby
VM, after - are not
requirements are loaded at each execution
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62. Miss Rack?
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63. Miss Rack?
mruby-hibari is the abstraction that is pretty similiar to well-known Rack interface. But just
faster a lot.
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64. Miss Rack?
mruby-hibari is the abstraction that is pretty similiar to well-known Rack interface. But just
faster a lot.
Find it at github://kentaro/mruby-hibari
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65. Seeking for opensource
developers!
I am looking for support to continue development of mruby-mongo. Any help will be
appreciated.
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66. Still actual :(
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67. Questions?
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68. Thank you!
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