1.
MongoDB Administration 101
Dave Finnegan
Senior Solution Architect, MongoDB Inc.

2.
Agenda
• MongoDB Philosophy
• Data Model
• High Availability through Replication
• Scalability through Sharding
• Deployment Architectures & Operations
2

3.
MongoDB Philosophy

4.
MongoDB and Enterprise IT Stack
4
Applications
CRM, ERP, Collaboration, Mobile, BI
Data Management
Online Data Offline Data
Hadoop EDW
Management & Monitoring
Security & Auditing
RDBMS
RDBMS
Infrastructure
OS & Virtualization, Compute, Storage, Network

5.
MongoDB Operations for
Developers
Dave Finnegan
Senior Solution Architect, MongoDB Inc.

6.
Operational Database Landscape
5

7.
Data Model

8.
Document Data Model
Relational MongoDB
7
{
first_name: ‘Paul’,
surname: ‘Miller’,
city: ‘London’,
location: [45.123,47.232],
cars: [
{ model: ‘Bentley’,
year: 1973,
value: 100000, … },
{ model: ‘Rolls Royce’,
year: 1965,
value: 330000, … }
}
}

9.
Documents are Rich Data Structures
8
{
first_name: ‘Paul’,
surname: ‘Miller’,
cell: ‘+447557505611’
city: ‘London’,
location: [45.123,47.232],
Profession: [banking, finance, trader],
cars: [
{ model: ‘Bentley’,
year: 1973,
value: 100000, … },
{ model: ‘Rolls Royce’,
year: 1965,
value: 330000, … }
}
}
Fields can contain an array of
sub-documents
Fields
Typed field values
Fields can
contain arrays
String
Number
Geo-
Coordinates

10.
Document Model Benefits
• Agility and flexibility
–Data model supports business change
–Rapidly iterate to meet new requirements
• Intuitive, natural data representation
–Eliminates ORM layer
–Developers are more productive
• Reduces the need for joins, disk seeks
–Programming is more simple
–Performance delivered at scale
9

11.
Replication

12.
Why Replication?
• High Availability (HA) through data duplication
• Distributed access at low latency
• Workload isolation – OLTP, Query, Analytics
11

13.
Replica Sets
Application
12
• Replica Set – two or more copies
• Self-healing shard
• Addresses availability
considerations:
– High Availability
– Disaster Recovery
– Maintenance
• Deployment Flexibility
– Data locality to users
– Workload isolation: operational & analytics
Driver
Primary
Secondary
Secondary
Replication

14.
Replica Set – Creation

15.
Replica Set – Initialize

16.
Replica Set – Failure

17.
Replica Set – Failover

18.
Replica Set – Recovery

19.
Replica Set – Recovered

20.
Scalability Through Sharding

21.
Working Set Exceeds Physical
Memory
20
Indexes
Indexes
Indexes
Working Set
Working Set
Working Set
Physical Memory

22.
Scaling: Sharding
21
mongod
Key Range
0..100
Read/Write Scalability

23.
Scaling: Sharding
22
Key Range
0..
Key Range
50..100
mongod mongod
Read/Write Scalability

24.
Scaling: Sharding
23
Key Range
0..25
Key Range
25..
Key Range
5150..75
Key Range
75..100
mongod mongod mongod mongod
Read/Write Scalability

25.
MongoDB Architecture
28

26.
Deployment Architectures &
Operations

27.
Single Data Center
30
• Automated failover
• Tolerates server failures
• Tolerates rack failures
• Number of replicas
defines failure tolerance
Primary – A Primary – B Primary – C
Secondary Secondary – B – A Secondary – A
Secondary – C Secondary – C Secondary – B

28.
Active/Standby Data Center
Primary – A Primary – B Primary – C
Secondary – B Secondary – C Secondary – A
Secondary – A Secondary – B Secondary – C
• Tolerates server and rack failure
• Standby data center
31
Data Center - West
Data Center - East

29.
Active/Active Data Center
Primary – A Primary – B Primary – C
Secondary Secondary – C – A Secondary – B
Secondary – A Secondary – B Secondary – C
Secondary – B Secondary – C Secondary – A
Arbiter – A Arbiter – B Arbiter – C
• Tolerates server, rack, data center failures, network
partitions
32
Data Center - West
Data Center - East
Data Center - Central

30.
Read Global/Write Local
33
Primary:NYC
Primary:LON
Secondary:NYC
Primary:SYD
Secondary:LON
Secondary:NYC
Secondary:SYD
Secondary:LON
Secondary:SYD

31.
MongoDB Management Service

32.
MongoDB Management Service
Management for MongoDB, created by the engineers who
develop the database
• Automation, for single-click
provisioning, scaling &
upgrades
• Monitoring, with charts,
dashboards and alerts on 100+
metrics
• Backup and restore, with point-in-
35
time recovery, support for
sharded clusters

33.
Security

34.
Defense in Depth Security Architecture
37

35.
Enterprise-Grade Security
38
Business Needs Security Features
Authentication In Database
LDAP*
Kerberos*
x.509 Certificates*
Authorization Built-in Roles
User-Defined Roles
Field-Level Redaction
Auditing Admin Operations*
Queries (via Partner Solutions)
Encryption Network: SSL (with FIPS 140-2)*
Disk: Partner Solutions
*Included with MongoDB Enterprise

36.
Resources for Ops

37.
For More Information
Resource Location
Resource Location
MongoDB Downloads mongodb.com/download
Free Online Training mongodb.com/education
Webinars and Events mongodb.com/events
White Papers mongodb.com/white-papers
Case Studies mongodb.com/customers
Presentations mongodb.com/presentations
Documentation docs.mongodb.org
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38.
Thank you!