Beach

2nd beach
middletown, ri,
2014/06/20

Vagrant 1.6 release

http://www.vagrantup.com/blog/vagrant-1-6.html#features

Now supports Docker-Based development environments.

MongoDB - Shell Commands Reference

http://docs.mongodb.org/manual/reference/method/

1. Collection
2. Cursor
3. Database
4. Query Plan
5. Bulk Write
6. User Management
7. Role Management
8. Replication
9. Sharding
10. Subprocess
11. Constructors
12. Connection
13. Native

Docker - v1.0 release

https://www.docker.com/whatisdocker/

How is this different from Virtual Machines?

Virtual Machines
Each virtualized application includes not only the application - which may be only 10s of MB - and the necessary binaries and libraries, but also an entire guest operating system - which may weigh 10s of GB.
 
Docker
The Docker Engine container comprises just the application and its dependencies. It runs as an isolated process in userspace on the host operating system, sharing the kernel with other containers. Thus, it enjoys the resource isolation and allocation benefits of VMs but is much more portable and efficient.

AWS - ELB Overview

• load balance traffic across multiple Availability Zones.
• detects unhealthy Amazon EC2 instances, it no longer routes traffic to them.
• integration with Auto Scaling.
• abstracts out the complexity of managing, maintaining, and scaling load balancers themselves.

https://aws.amazon.com/articles/1636185810492479

Linux - Top and Load Average

Excellent write up about what load average represents:
http://www.linuxjournal.com/article/9001

Interviews

Actually interviewed some people this week.
While reviewing one candidate's resume I realized this lady was coding since I was 5.

Tomcat - Server.xml

http://tomcat.apache.org/tomcat-7.0-doc/config/

• Server (the whole Catalina servlet container) {isa component}
• Listener
• Service {isa component}
• Executor (shared thread
• Connector(s)  [http, ajp]
• Engine (receives and processes all requests from Connector(s)  {isa container}
• Valve(s) {isa component}
• Listener
• Realm (users and roles)
• Host(s) (virtual hosts) {isa container}
• Valve(s) {isa component}
• Listener
• Realm (users and roles)
• Context(s) (web app) {isa container}
• Realm (users and roles)
• Valve(s) {isa component}