In any busy operations environment, there are countless tasks to perform - some monthly, or weekly, some daily or more frequently, and some on an ad-hoc basis. And automation is key to performing fast, efficient and consistently repeatable software deployments and recovery. There are many generic tools available, both commercial and open source, to aid with the automation of operational tasks. Some of these tools are even deployed in the database world. However, there are a small number of specialist domain-specific automation tools available also, and we are going to compare two of these products: MongoDB?s own Ops Manager, and ClusterControl from Severalnines. We will cover: * Installation and maintenance * Complexity of architecture * Options for redundancy * Comparative functionality * Monitoring, Dashboard, Alerting * Backing up and restoring * Automated deployment of advanced configurations * Upgrading existing deployments Participants should take away a clear understanding of the differences between these tools, and how they help automate and manage MongoDB operations.

1. Copyright 2017 Severalnines AB
An Analysis of Ops Manager vs. ClusterControl
27th
September 2017
Ruairí Newman, Senior Support Engineer, Severalnines
Presenter
ruairi@severalnines.com
Automating and
Managing MongoDB

2. Copyright 2012 Severalnines ABCopyright 2012 Severalnines AB
Who are Severalnines?
Re-Defining Database
Management
The “Anti-Startup”
+ 2011 EuroCloud Sweden &
Europe Best Startup Award
+ 2016 Information Age Data 50
Awards Database Category
+ 2016 Computing Vendor
Excellence Award - Cloud &
Infrastructure and DevOps
Solution Award
+ Finalist - Computing IT
Awards
Self-Funded, Profitable,
with No VC Capital
Your All-Inclusive, Open
Source Database
Management System

3. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
High-Level Feature Comparison
ClusterControl Ops Manager
Deploy Replica Set, Sharded Cluster Yes Yes
Metrics Monitored Host metrics, MongoDB Metrics Host metrics, MongoDB Metrics
Custom Dashboards Yes, plus “Advisors” Yes
Cloud/IaaS Provider Integration AWS S3 (for Backups)* AWS S3 (for Backups)
Consistent Backups (Sharded) Yes Yes
User & Group Mgmt, LDAP Yes Yes
Secure Installation Default Supported
Auto Recovery Explicit No
Scriptable Command Line Yes No

4. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
Installation:
● Ops Manager
○ Downloadable from mongodb.com
○ Enterprise MongoDB Subscription
○ MongoDB Licences for for servers required to support Ops Manager
○ Production vs Test deployment
● ClusterControl
○ Downloadable from severalnines.com--install-cc script
○ Installs required open source dependencies
○ Community edition, Advanced, and Enterprise
Installation Requirements:
● Ops Manager
○ Production
○ “Test”
● ClusterControl
The Basics - Getting Started

5. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
Standard Installation of MongoDB Ops Manager

6. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
Highly Available Ops Manager Architecture
In this scenario, a highly
available Ops Manager
requires 8 physical servers,
not including the HTTP load
balancer.
Apart from the HTTP
Services, the solution requires
3 MongoDB replica sets of 3
data nodes each;
One each for the Application
Database, and the Backup
Blockstore Databases #1 &
#2.

7. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
ClusterControl uses a single MySQL /
MariaDB database server, to which
its core services connect to store and
retrieve data.
Redundancy can be achieved
through deploying a database
snapshot on a second node, and
installing the ClusterControl
applications.
With a HTTP proxy in front, requests
can be directed to the live node.
ClusterControl services such as
auto-recovery should be stopped on
the second node to avoid
complications.
ClusterControl Architecture

8. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
Installation

9. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
❏ EC2 instances
❏ 4 x “t2.small” CentOS 7.3 EC2 instances: 1 for ClusterControl, 3 for a
MongoDB Replica Set deployment
❏ Obtain and install ClusterControl installation script from severalnines.com
❏ Deploy a 3-node MongoDB Replica Set
❏ Review key functionality
Installation of ClusterControl

10. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
Installation of Ops Manager “Test”
❏ EC2 instances
❏ 1 x “t2.large” CentOS 7.3 EC2 instance for Ops Manager “test” install
❏ 3 x “t2.small” CentOS 7.3 EC2 instances for 3-Node MongoDB Replica Set
❏ Obtain and install MongoDB installation RPM
❏ Deploy a 3-node MongoDB Replica Set
❏ Review key functionality

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Integrations

12. Copyright 2017 Severalnines ABCopyright 2017 Severalnines AB
s9s -- the ClusterControl command line

13. Copyright 2017 Severalnines AB
Thank You!