talk at YAPC::EU 2015 3 sep 14:30, Aula Magna hall

1. Great Tools
Heavily Used In
Japan, You Don't
Know.

2. I am
Junichi Ishida
(aka uzulla)
Tokyo/Japan
Hachioji.pm

4. I am not lestrrat !
(I wear glasses)

5. by the way.
• many Japanese perl mongers came to this
YAPC::EU.
• Please go talk to them if you have any
questions.
• Let's introduce some modules by people who
are here

6. YUSUKEBE
• He is a famous perl
monger in japan.
• He'll talk this YAPC::EU.
today 15:00 at Aula F1

7. App::revealup
• "HTTP Server application for viewing
Markdown formatted text as slides"
• This is Cool Markdown based presentation
tool.
• Yusukebe will talk about this tool at today
15:00 in Aula F1 . so, I skip this.

8. WebService::Simple
• Simple Interface To Web Services APIs
• popular for beginners
• but very useful

9. example
use WebService::Simple;
# make instance
my $flickr = WebService::Simple->new(
base_url => "http://api.flickr.com/services/rest/",
param => { api_key => "your_api_key", }
);
# send GET request with params
my $response = $flickr->get(
{ method => "flickr.test.echo", name => "value" }
);
# parse respose
my $thing = $response->parse_response;

10. that's all !
• this is very simple. i like this a lot.

11. MOZNION
• His project "Perl::Lint" was
accepted for TPF Grant.

12. Perl::Lint
• "Yet Another Perl Source Code Linter"
• faster than other lint tools.
• Next up His talk in this hall. so, skip!

13. Perl::PrereqScanner::Lite
• a lightweight prereq scanner for perl.
• that is x30 faster than Perl::PrereqScanner
• http://moznion.hatenadiary.com/entry/
2014/03/21/231805

14. • "why need fast ?"
• "Because we are japanese !!!!"

15. PAPIX
• he gives perl classes as a
hobby
• He will talk about His
teaching experience at
tomorrow(4 sep) Aula F2

16. WebService::Mackerel
• Control Panel API Client for mackerel.io
• Change Server label on mackerel
• add/remove watch servers.
• (this is not agent)

17. Mackerel ?
• Mackerel.io is Performance monitor tool on
cloud.
• "A Revolutionary New Kind of Application
Performance Management"
• Some popular japanese servicers are starting
to use it.

20. SONGMU
• He will talk at 4 sep 15:00
Aula F2

21. Riji
• markdown and git based blog tool.
• Builtin httpd server for entry preview
• static HTML file generate
• entries are version controlled by git
• Atom feed support

22. how to setup, add entry,
and see preview.
$ cpanm Riji
$ mkdir some_dir; cd some_dir
$ riji setup
$ vi article/entry/start.md
$ git add . ; git commit -a
$ riji server
$ open http://localhost:3650/entry/start.html

23. publish static files
# edit blog meta data once.(author, title...)
$ vi riji.yml
# generate htmls in blog dir
$ riji publish
• Of course, Static files are fast and secure!

24. KARUPANERU
RA
• He will talk about
performance tuning, at 4
sep 12:00 in Salon de
Grados

25. mRuby (perl module)
• https://metacpan.org/pod/mRuby
• mRuby is mruby binding for perl5.
• (mruby is lightweight and easily embeddable
Ruby interpreter)

26. example
use mRuby;
my $mruby = mRuby->new(file => $filename);
my $ret = $mruby->run();

27. why need mruby?
• mRuby can be used to share code in web and
mobile apps(Android,iOS) (ex: calculation
score).
• also, Some web server can using mruby as
module, that for nginx, Apache, H2O(httpd).

28. LESTRRAT
• "It's not me."
• He already talked (at today
12:00 in Salon de Grados).

29. STF
• STF is HTTP based S3-like storage.
• http://stf-storage.github.io/

30. metrics from 2014 jun
• 100 TB
• 600,000,000 objects
• it's serving 400Mbps at peak hours without a
hitch.

31. MIYAGAWA
• oh men, He is not Japanese(sawyerx said at
today's keynote!)
• and...too famous. skip!

32. • That's all, japanese perl monger that they
came to this YAPC::EU.

33. Ofcourse, More
Perl monger in
japan

34. KAZUHO
• Author of H2O (HTTP/2 support optimized
httpd)

35. Test::mysqld
• mysqld runner for tests
• Makes new temporary empty mysqld process.
• mysqld process will be terminate on the end
of execute.

36. example
use DBI;
use Test::mysqld;
my $mysqld = Test::mysqld->new(
my_cnf => {
'skip-networking' => '', # no TCP socket
}
);
my $dbh = DBI->connect(
$mysqld->dsn(dbname => 'test'),
);

37. Server::Starter
• "a superdaemon for hot-deploying server
programs"
• Gracefull restart(hot-deploying)
• Only exit old process if new process is
successfully booted.(safe!)
• No resource leak

38. Requirements a (your)
server program.
• Support Gracefull shutdown
• Use socket FD passed from server starter to
app

39. usage (with Starman)
start_server
--interval 5
--port 8000
--signal-on-hup=QUIT # for Starman
--
starman --preload-app myapp.psgi
• start_server command will install when install
Server::Starter.

40. Starlet
• "a simple, high-performance PSGI/Plack HTTP
server"
• Very heavily used in japan.

41. example
$ plackup -s Starlet app.psgi
• some available parameters for performance
tuning.
• https://github.com/kazuho/Starlet

42. use Server::Starter usage
$ start_server --port=8000 --
plackup -s Starlet app.psgi
• this is very popular style in japan.

43. KAZEBURO

44. GrowthForecast
• http://kazeburo.github.io/GrowthForecast/
• "Lightning Fast Graphing/Visualization"
• Make a graph all sorts of metrics via a WebAPI
• Easiest way to draw some metrics graph.

45. install
• (skip, sorry!)
• http://kazeburo.github.io/GrowthForecast/
#install
• (Need RRDtool. it install may be bit hard)

46. set cron (sample task)
*/5 * * * *
curl
-F number=`mysql -BN -e 'select count(*) from member' game`
http://gf.host/api/game/member/register 2>&1 > /dev/null
• count some table row num
• ... and send metric to GF server every 5min.
• /game/member/register is graph name
• zero-conf!

47. result
• easy! simple! convenient!
• You can add graph in a
minute !

48. HRForecast
• Usage similar as
GrowthForecast
• Difference between
Growthforcast are:
• Resolution is per hour.
• Can post past date
metric data.
• Does not need RRDtool.

49. Cookie::Baker
• "Cookie string generator / parser"
• It can cook cookies!

50. • "Why do you need this ?"
• "This is CGI.pm free"
• "understand."

51. Gazelle
• Very fast psgi server
• faster than Starman, Starlet.

52. x2 Faster than starman
• https://github.com/kazeburo/Gazelle/wiki/
Benchmark

53. • "why does it need to be so fast ?"
• "because we are japanese !!!!!"

54. TOKUHIROM

55. Web::Query
• "Yet another scraping library like jQuery"
• very friendly scraping

56. example
use Web::Query;
wq('http://hachiojipm.org/')
->find('h2.entry-title a')
->each(sub {
my $i = shift;
printf("%d %sn", $i+1, $_->text);
});
• this is like a jQuery

57. Furl
• "Lightning-fast URL fetcher"
• Simple and Fast http client

58. GET example
use Furl;
my $furl = Furl->new(
agent => 'MyGreatUA/2.0',
timeout => 10,
);
my $res = $furl->get('http://example.jp/');
print $res->content;

59. POST example
use Furl;
my $furl = Furl->new(
agent => 'MyGreatUA/2.0',
timeout => 10,
);
my $res = $furl->post(
'http://example.jp/', # URL
[ X-MY-HEADER=>'ohmy' ], # headers
[ foo => 'bar' ], # form data (HashRef/FileHandle are also okay)
);
print $res->content;

60. why not LWP??
• "Why does it need to be faster ?"
• "because, we are japanese !!!!"
Ofcourse, we need that.

61. That's it for now
I want introduce you more, but that's all the time
I have.
Router::Boom, DBIx::QueryLog,
Mojolicious::Plugin::Web::Auth, Test::Time,
Test::Time::At, Text::LTSV, App::PRT,
Plack::App::PHPCGI, DBIx::Sunny, Proclet,
Harriet, DBIx::TransactionManager,
Data::MessagePack, Teng, Daiku, Minilla,
DBIx::Schema::DSL, App::Watcher,
HTTP::Parser::XS, XML::Tree::PP, Test::TCP, ....

62. Awesome Perl
• Awesome-list for perl
• awesome-list is a list of nice module/tools.
• https://github.com/hachiojipm/awesome-perl
• maintain by hachioji.pm

63. Awesome Perl: Patches Welcome
• I am waiting for your pull-requests!

64. Finally! that's all !!
• If my talk too fast...
• (Why? because...)
• this slide uploaded here.
• http://bit.ly/uzulla_yapceu2015