Riak-Light
Fast and lightweight Perl client for Riak
```perl # create a new instance - using pbc only my $client = Riak::Light->new( host => '127.0.0.1', port => 8087 );
$client->is_alive() or die "ops, riak is not alive";
# store hashref into bucket 'foo', key 'bar'
# will serializer as 'application/json'
$client->put( foo => bar => { baz => 1024 });
# store text into bucket 'foo', key 'bar'
$client->put( foo => baz => "sometext", 'text/plain');
$client->put_raw( foo => baz => "sometext"); # does not encode !
# fetch hashref from bucket 'foo', key 'bar'
my $hash = $client->get( foo => 'bar');
my $text = $client->get_raw( foo => 'baz'); # does not decode !
# delete hashref from bucket 'foo', key 'bar'
$client->del(foo => 'bar');
# check if exists (like get but using less bytes in the response)
$client->exists(foo => 'baz') or warn "ops, foo => bar does not exist";
# list keys in stream (callback only)
$client->get_keys(foo => sub{
my $key = $_[0];
# you should use another client inside this callback!
$another_client->del(foo => $key);
});
```
Install
It is available on CPAN
cpan Riak::Light
https://metacpan.org/release/Riak-Light/
Test Coverage
---------------------------- ------ ------ ------ ------ ------ ------ ------
File stmt bran cond sub pod time total
---------------------------- ------ ------ ------ ------ ------ ------ ------
blib/lib/Riak/Light.pm 100.0 100.0 100.0 100.0 80.0 48.4 99.5
...b/Riak/Light/Connector.pm 100.0 100.0 n/a 100.0 0.0 32.4 96.6
.../lib/Riak/Light/Driver.pm 100.0 100.0 n/a 100.0 0.0 4.0 93.3
blib/lib/Riak/Light/PBC.pm 100.0 n/a n/a 100.0 n/a 10.1 100.0
...lib/Riak/Light/Timeout.pm 100.0 n/a n/a 100.0 n/a 0.7 100.0
...ak/Light/Timeout/Alarm.pm 100.0 100.0 n/a 100.0 0.0 0.7 94.3
...k/Light/Timeout/Select.pm 100.0 n/a n/a 100.0 0.0 0.4 90.2
...t/Timeout/SelectOnRead.pm 100.0 n/a n/a 100.0 0.0 0.2 91.3
...ght/Timeout/SetSockOpt.pm 100.0 100.0 n/a 100.0 0.0 0.5 96.8
.../Light/Timeout/TimeOut.pm 100.0 100.0 n/a 100.0 0.0 0.9 94.9
blib/lib/Riak/Light/Util.pm 100.0 n/a n/a 100.0 0.0 1.7 87.5
Total 100.0 100.0 100.0 100.0 15.4 100.0 96.1
---------------------------- ------ ------ ------ ------ ------ ------ ------
Simple Benchmark
Using Perl 5.12.2 under MacOSX 10.8.3 / 4GB Ram / 2.4 GHz Intel Core 2 Duo and Riak 1.3.0 (localhost)
Only GET (benchmark/compare_all_only_get.pl)
Rate Data::Riak (REST) Net::Riak (REST) Riak::Tiny (REST) Data::Riak::Fast (REST) Net::Riak (PBC) Riak::Light (PBC)
Data::Riak (REST) 318/s -- -33% -42% -46% -69% -92%
Net::Riak (REST) 478/s 50% -- -12% -20% -54% -87%
Riak::Tiny (REST) 544/s 71% 14% -- -8% -47% -86%
Data::Riak::Fast (REST) 594/s 87% 24% 9% -- -42% -84%
Net::Riak (PBC) 1031/s 224% 116% 89% 73% -- -73%
Riak::Light (PBC) 3774/s 1086% 690% 593% 535% 266% -- --
Only PUT (benchmark/compare_all_only_put.pl)
Rate Net::Riak (REST) Data::Riak (REST) Riak::Tiny (REST) Net::Riak (PBC) Data::Riak::Fast (REST) Riak::Light (PBC)
Net::Riak (REST) 418/s -- -16% -22% -55% -58% -88%
Data::Riak (REST) 499/s 19% -- -7% -46% -50% -86%
Riak::Tiny (REST) 534/s 28% 7% -- -42% -46% -85%
Net::Riak (PBC) 924/s 121% 85% 73% -- -6% -74%
Data::Riak::Fast (REST) 988/s 137% 98% 85% 7% -- -73%
Riak::Light (PBC) 3604/s 763% 623% 575% 290% 265% --
Timeout Providers (benchmark/compare_timeout_providers.pl)
Rate Riak::Light 6 Riak::Light 3 Riak::Light 2 Riak::Light 4 Riak::Light 5 Riak::Light 1
Riak::Light 6 2158/s -- -16% -21% -21% -32% -38%
Riak::Light 3 2564/s 19% -- -6% -6% -20% -26%
Riak::Light 2 2727/s 26% 6% -- 0% -15% -22%
Riak::Light 4 2727/s 26% 6% 0% -- -15% -22%
Riak::Light 5 3191/s 48% 24% 17% 17% -- -9%
Riak::Light 1 3488/s 62% 36% 28% 28% 9% --
where
1 - undef / no IO timeout
2 - using Time::HiRes (alarm)
3 - using IO::Select (DEFAULT)
4 - using IO::Select only in read operations
5 - using setsockopt
6 - using Time::Out
Features
- be PBC only (ok)
- supports timeout (ok)
- use Moo (ok)
- doesn't create an object per key (ok)
- support an option to not die, but return undef (deprecated, will be removed to the next version)
- be optimized for speed. (ok)
- try to get 100% coverage. (ok)
- benchmark with Data::Riak, Net::Riak REST, etc... (ok)
- documentation (ok)
- support raw data (ok)
- support list keys (ok)
- debug/trace mode (to do)
- refactor to use Moo::Roles instead other objects (to do)
- extract timeout provider to an external project (to do)