Apps/ServerArchitecture

Overview

• The appsync server provides
  • appsync APIs
  • the static myapps website
  • a MySQL database that mirrors all writes
• The sauropod server is a Node.js server
  • keeps sessions in memory (DB tokens)
  • proxies the calls to the HBAse server
• The HBase cluster manage the data

appsync/myapps

• Points of contact
  • Ops: Gozer
  • Devs: Tarek
• Servers
  • appsync-stage1.vm1.labs.sjc1.mozilla.com (https://stage-myapps.mozillalabs.com/)
• stack
  • CentOS 6
  • Python 2.6
  • nginx
  • gunicorn
  • appsync server
• status - DEPLOYED
• CI / CD : http://hudson.build.mtv1.svc.mozilla.com/view/9.%32Apps

memcached

• Points of contact
  • Ops: Gozer
  • appsync-stage1.vm1.labs.sjc1.mozilla.com
• stack
  • CentOS 6
  • Python 2.6
  • nginx
  • gunicorn
  • appsync server
• status - DEPLOYED

Sauropod Node.JS server

• Points of contact
  • Ops: Gozer
  • Devs: ?
• Servers
  • sauropod-stage1.vm1.labs.sjc1.mozilla.com
• stack
  • CentOS6
  • node.js 0.6.3 from mozilla-services package repository
  • direct checkout from github
• status - Hackishly deployed
• CI / CD - not yet

Sauropod HBase stack

• Points of contact
  • Ops: Gozer
  • Devs: rtilder
• Servers
  • appsync-hbase-stage1.vm1.labs.sjc1.mozilla.com
    • "master": running the namenode
    • Zookeeper quorum node
    • Also running as an HDFS data node and HBase region server
  • appsync-hbase-stage2.vm1.labs.sjc1.mozilla.com
    • "slave": running HDFS data node and HBase region server
    • Zookeeper quorum node
• stack
  • CentOS6
  • Sun JVM 1.6.0
  • Cloudera HBase distro version CDH3U2
• status - DEPLOYED
• CI / CD - none

open questions

• how to load balance sauropod ? client-side ? Zeus ?
• backup on the sauropod nodes ?