Yesterday I joined Beijing Perl Workshop and met lots of friends again, Joe, Roger, Qiang .... Below are my casual notes for yesterday's sessions. Just put it at here for memory.
Mojolicious Introduction - by 扶凯
Basic function introduction
Client
Mojo::UserAgent
Debug
Enable an option in Perl code.
DB
asyn, Non blocking mysql
Get
mojo get url /info
Ask question:
- Client intefaces are compatible with CSS3 Should coresponde with jQuery selector. ...
Session 2: Perl on Fedora by 李瑞彬
General build process
CPAN and RPM
- perl-{distr -- }yum install perl-yum install perl('lwp');...yum install cpanspec
SystemTap
yum install perl-devel
Perl release Strategy
Fedoral updates Perl in time as well as core moduls
support Perl6 - Rakudo Star
Fedora 19
3D print, SystemTap, OpenShit(Clouding)
Idea: markdown ==> PPT yum list -C perl-*|wc -l
Session3 ElasticSearch
By Argv陈子 from RenRen.com
Features
Search and anylytics engine for the cloud JSON0-orented RESTful APIa Schema Build on Apache lucene
ES for Perler - Extract info to Index-weekly
Mentioned a log tool: http://logstash.net
Logstash originally deved by Ruby, port to Perl5
log too: Kibana1,2,3
Chen's work summarized into CPAN module: message::passing::filter::regexp by Argv.
log visulization: deftermin anomalous metrics
Reference: https://github.com/etsy/skyline https://github.com/etsy/oculus
Useful commands: apt-get install -y git cpanminus virtualbox cpanm Rex git clone https://github.com/chenryn/esdevops cd esdevops rex init --name esdevops
Dancer -- by XX
Mentioned a useful template: ToTo: framework based on bootstrap
Rex - Missed
MogileFS在企业中的应用 by 扶凯(again)
Challege for small/internet startup, const is key for them Dango.com based on GFS Brad Fizapatrik
Mogile Fs is suitable for some internet vedio sites. Scale: xxx T Architecure Trackers Storage nodes: C version is fast and good for large file. most of Distribute FS are not POSIX compatible ?
Yahoo cluster - from US Yahoo six year ...
360 engineer, former RenRen, Yahoo engineer. so 360 and RenRen use this framework pantheon.
130 000 ....
20 people - maintenance
monitor blockneck - IO
cpan -i pantheon
Table driven, use range tool to perform operation to all the nodes
sqlite3 作为table的管理数据库 sudo !!
half poll , half pull
How to update:
ACID: ...
Nagios:
During small talk ,this guy mentioned he applied the way that he did in US Yahoo in operational department in RenRen.com, which improved efficiency dramatically and reduced headcounts to insingle digits in his previous department.
Perl on my work
- Testing - Test::More, testcase in Perl package as workload
- Diagnosis - Dig infomation from syslog, parse failure log
- Automation - Get dataset/file, submit job, autoPuty, FTP/Telnet/SSH/Rlogin
- Simplicity - Web interface,
lightening talk
My thinkpad was under low battery condition, so I didn't take any notes for lightening talk.... ...
