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Operation Oriented Web Applications
                        Yokohama.pm#7
                            @kazeburo
Log::Minimal
#!/usr/bin/env perl

use strict;
use warnings;
use Log::Minimal;

critf("%s","foo");
warnf("%d %s", 1, "foo");

sub hoge {
    infoff("foo");
    debugff("bar");
};
hoge();

local $Log::Minimal::AUTODUMP = 1;
infof({ key => 'val' });
warnf("data is %s", { key => 'val' });
$ LM_DEBUG=1 perl /tmp/logminimal.pl


2011-05-11T15:57:49 [CRITICAL] foo at /tmp/logminimal.pl line 7
2011-05-11T15:57:49 [WARN] 1 foo at /tmp/logminimal.pl line 8


2011-05-11T15:57:49 [INFO] foo at /tmp/logminimal.pl line 11 ,/tmp/
logminimal.pl line 14
2011-05-11T15:57:49 [DEBUG] bar at /tmp/logminimal.pl line 12 ,/tmp/
logminimal.pl line 14


2011-05-11T15:57:49 [INFO] {'key' => 'val'} at /tmp/logminimal.pl line 17
2011-05-11T15:57:49 [WARN] data is {'key' => 'val'} at /tmp/logminimal.pl
line 18
local $Log::Minimal::PRINT = sub {
    my ( $time, $type, $message, $trace) = @_;
    print STDERR “[$type] $message $trace”;
};




local $Log::Minimal::LOG_LEVEL = "WARN";
infof("foo"); #print nothing
warnf(“xaicron++”);
local $Log::Minimal::AUTODUMP = 1;
warnf(“response => %s”,[ 200, [‘Content-Type’,‘text/
plain’],[‘OK’]]);

# 2011-05-11T15:56:14 [WARN] response => [200,
['Content-Type','text/plain'],['OK']] at ..




sub myerror {
    local $Log::Minimal::TRACE_LEVEL = 1;
    infof(@_);
}
myerror(“foo”);
use Log::Minimal;
use Plack::Builder;

builder {
    enable "Log::Minimal", autodump => 1;
    sub {
        my $env = shift;
        warnf("warn message");
        debugf("debug message");
        ...
    }
};



$ plackup -a demo.psgi
HTTP::Server::PSGI: Accepting connections at http://0:5000/
2011-05-11T16:32:24 [WARN] [/foo/bar/baz] warn message at /
tmp/demo.psgi line 8
2011-05-11T16:32:24 [DEBUG] [/foo/bar/baz] debug message at /
tmp/demo.psgi line 9
DBIx::Sunny
selectrow_arrayref($query, {}, @bind);




selectrow_hashref($query, {}, @bind);




selectall_arrayref($query, { Slice => {} }, @bind);




prepare($query) && execute(@bind)
use DBIx::Sunny;

my $dbh = DBIx::Sunny->connect(...);




use DBI;
use DBIx::Sunny;

my $dbh = DBIx->connect(...,{
    RootClass => ‘DBIx::Sunny’
});
DBIx::Sunny::Schema
package NoNoPaste::Data;
use parent qw/DBIx::Sunny::Schema/;

__PACKAGE__->query(
    'add_entry',
    id => 'Str',
    nick => { isa => 'Str', default => 'anonymouse' },
    body => 'Str',
    q{INSERT INTO entries ( id, nick, body, ctime )
        values ( ?, ?, ?, NOW() )},
);

__PACKAGE__->select_row(
    'entry',
    'id' => 'Uint',
    q{SELECT id,nick,body,ctime FROM entries WHERE id =?};
);

__PACKAGE__->select_all(
    'entries_multi',
    'id' => { isa => 'ArrayRef[Uint]' },
    q{SELECT id,nick,body,ctime FROM entries WHERE id IN (?)}
);
use parent qw/DBIx::Sunny::Schema/;

__PACKAGE__->                   (
     '          ',
          =>     /       ,
     [     =>        /       ,[..]],
     ‘    ’,
);
prepare && execute && fetchrow_arrayref->[0];




prepare && execute && fetchrow_hashref;




prepare && execute && push @result, $_ while fetchrow_hash;




prepare && execute
my $dbh = DBI->connect(...);
my $master = NoNoPaste::Data->new( dbh => $dbh );

# readonly   query
my $slave = NoNoPaste::Data->new( dbh => $dbh,
                                 readonly => 1 );
#
my $row = $master->add_entry(
    id => $id,
    nick => $nick,
    body => $body,
);

#
my $rows = $slave->entry_list( offset => $offset );
GreenBuckets
use Digest::MurmurHash qw/murmur_hash/;

for ( 1..100 ) {
    say murmur_hash(sprintf "test%03d", $_ );
}
use Digest::MurmurHash qw/murmur_hash/;

for ( 1..100 ) {
    say murmur_hash(sprintf "test%03d", $_ );
}
CREATE TABLE objects (
    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
    fid INT UNSIGNED NOT NULL,
    bucket_id INT UNSIGNED NOT NULL,
    rid SMALLINT UNSIGNED NOT NULL,
    gid SMALLINT UNSIGNED NOT NULL,
    filename VARCHAR(1024),
    INDEX (fid, bucket_id),
    INDEX (bucket_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin




SELECT * FROM objects WHERE fid = murmur($filename) AND
bucket_id = $bucket AND filename = $filename
CREATE TABLE entries_int (
    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
    fid INT UNSIGNED NOT NULL,
    bid INT UNSIGNED NOT NULL,
    filename VARCHAR(255) NOT NULL,
    INDEX (fid, bid),
    INDEX (bid)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin




CREATE TABLE entries_char (
    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
    filename VARCHAR(255) NOT NULL,
    bid INT UNSIGNED NOT NULL,
    UNIQUE INDEX (filename, bid),
    INDEX (bid)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin
.--------------------------------------------------.
| table_name   | total_kb | data_kb    | index_kb |
+--------------+-----------+-----------+-----------+
| entries_char | 3360.0000 | 1552.0000 | 1808.0000 |
| entries_int | 2080.0000 | 1552.0000 | 528.0000 |
'--------------+-----------+-----------+-----------'

               (filename      32    )
@nodes = sort {
    murmur_hash(join "/", $a->{node_id},$bucket,$filename)
    <=>
    murmur_hash(join "/", $b->{node_id},$bucket,$filename)
} @nodes;
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7
Operation Oriented Web Applications / Yokohama pm7

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Operation Oriented Web Applications / Yokohama pm7

  • 1. Operation Oriented Web Applications Yokohama.pm#7 @kazeburo
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  • 7. #!/usr/bin/env perl use strict; use warnings; use Log::Minimal; critf("%s","foo"); warnf("%d %s", 1, "foo"); sub hoge { infoff("foo"); debugff("bar"); }; hoge(); local $Log::Minimal::AUTODUMP = 1; infof({ key => 'val' }); warnf("data is %s", { key => 'val' });
  • 8. $ LM_DEBUG=1 perl /tmp/logminimal.pl 2011-05-11T15:57:49 [CRITICAL] foo at /tmp/logminimal.pl line 7 2011-05-11T15:57:49 [WARN] 1 foo at /tmp/logminimal.pl line 8 2011-05-11T15:57:49 [INFO] foo at /tmp/logminimal.pl line 11 ,/tmp/ logminimal.pl line 14 2011-05-11T15:57:49 [DEBUG] bar at /tmp/logminimal.pl line 12 ,/tmp/ logminimal.pl line 14 2011-05-11T15:57:49 [INFO] {'key' => 'val'} at /tmp/logminimal.pl line 17 2011-05-11T15:57:49 [WARN] data is {'key' => 'val'} at /tmp/logminimal.pl line 18
  • 9. local $Log::Minimal::PRINT = sub { my ( $time, $type, $message, $trace) = @_; print STDERR “[$type] $message $trace”; }; local $Log::Minimal::LOG_LEVEL = "WARN"; infof("foo"); #print nothing warnf(“xaicron++”);
  • 10. local $Log::Minimal::AUTODUMP = 1; warnf(“response => %s”,[ 200, [‘Content-Type’,‘text/ plain’],[‘OK’]]); # 2011-05-11T15:56:14 [WARN] response => [200, ['Content-Type','text/plain'],['OK']] at .. sub myerror { local $Log::Minimal::TRACE_LEVEL = 1; infof(@_); } myerror(“foo”);
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  • 16. use Log::Minimal; use Plack::Builder; builder {     enable "Log::Minimal", autodump => 1;     sub {         my $env = shift;         warnf("warn message");         debugf("debug message");         ...     } }; $ plackup -a demo.psgi HTTP::Server::PSGI: Accepting connections at http://0:5000/ 2011-05-11T16:32:24 [WARN] [/foo/bar/baz] warn message at / tmp/demo.psgi line 8 2011-05-11T16:32:24 [DEBUG] [/foo/bar/baz] debug message at / tmp/demo.psgi line 9
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  • 21. selectrow_arrayref($query, {}, @bind); selectrow_hashref($query, {}, @bind); selectall_arrayref($query, { Slice => {} }, @bind); prepare($query) && execute(@bind)
  • 22. use DBIx::Sunny; my $dbh = DBIx::Sunny->connect(...); use DBI; use DBIx::Sunny; my $dbh = DBIx->connect(...,{ RootClass => ‘DBIx::Sunny’ });
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  • 28. package NoNoPaste::Data; use parent qw/DBIx::Sunny::Schema/; __PACKAGE__->query( 'add_entry', id => 'Str', nick => { isa => 'Str', default => 'anonymouse' }, body => 'Str', q{INSERT INTO entries ( id, nick, body, ctime ) values ( ?, ?, ?, NOW() )}, ); __PACKAGE__->select_row( 'entry', 'id' => 'Uint', q{SELECT id,nick,body,ctime FROM entries WHERE id =?}; ); __PACKAGE__->select_all( 'entries_multi', 'id' => { isa => 'ArrayRef[Uint]' }, q{SELECT id,nick,body,ctime FROM entries WHERE id IN (?)} );
  • 29. use parent qw/DBIx::Sunny::Schema/; __PACKAGE__-> ( ' ', => / , [ => / ,[..]], ‘ ’, );
  • 30. prepare && execute && fetchrow_arrayref->[0]; prepare && execute && fetchrow_hashref; prepare && execute && push @result, $_ while fetchrow_hash; prepare && execute
  • 31. my $dbh = DBI->connect(...); my $master = NoNoPaste::Data->new( dbh => $dbh ); # readonly query my $slave = NoNoPaste::Data->new( dbh => $dbh, readonly => 1 ); # my $row = $master->add_entry( id => $id, nick => $nick, body => $body, ); # my $rows = $slave->entry_list( offset => $offset );
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  • 50. use Digest::MurmurHash qw/murmur_hash/; for ( 1..100 ) { say murmur_hash(sprintf "test%03d", $_ ); }
  • 51. use Digest::MurmurHash qw/murmur_hash/; for ( 1..100 ) { say murmur_hash(sprintf "test%03d", $_ ); }
  • 52. CREATE TABLE objects ( id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, fid INT UNSIGNED NOT NULL, bucket_id INT UNSIGNED NOT NULL, rid SMALLINT UNSIGNED NOT NULL, gid SMALLINT UNSIGNED NOT NULL, filename VARCHAR(1024), INDEX (fid, bucket_id), INDEX (bucket_id) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin SELECT * FROM objects WHERE fid = murmur($filename) AND bucket_id = $bucket AND filename = $filename
  • 53. CREATE TABLE entries_int ( id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, fid INT UNSIGNED NOT NULL, bid INT UNSIGNED NOT NULL, filename VARCHAR(255) NOT NULL, INDEX (fid, bid), INDEX (bid) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin CREATE TABLE entries_char ( id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, filename VARCHAR(255) NOT NULL, bid INT UNSIGNED NOT NULL, UNIQUE INDEX (filename, bid), INDEX (bid) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_bin
  • 54. .--------------------------------------------------. | table_name | total_kb | data_kb | index_kb | +--------------+-----------+-----------+-----------+ | entries_char | 3360.0000 | 1552.0000 | 1808.0000 | | entries_int | 2080.0000 | 1552.0000 | 528.0000 | '--------------+-----------+-----------+-----------' (filename 32 )
  • 55. @nodes = sort { murmur_hash(join "/", $a->{node_id},$bucket,$filename) <=> murmur_hash(join "/", $b->{node_id},$bucket,$filename) } @nodes;

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