Presented at 3|SHARE's EVOLVE'14 - The Adobe Experience Manager Community Summit on Tuesday November 18th, 2014 at the Hard Rock Hotel in San Diego, CA. evolve14.com

1. AEM WI TH MONGODB
NOVEMBER 17, 2014
P R E S E N T E D B Y
N a t e N e l s o n
Fruit or Technology?

2. 2
• Who am I?
– Nate Nelson, 3|Share ROM Team
• nate.nelson@3sharecorp.com
• Who are you?
– Role with AEM
– Experience with mongoDB

3. 3
AEM WI TH MONGODB
Introduction
Questions?
Fruit or Technology?
How is it related to AEM?
What does it mean to us?
What does it mean to our customers?
How do I use it?
How do I support it?
“humongous”
-Required for clustering
-Initial release 2009
-Currently 2.6.x
-Document-oriented
database, part of NoSQL
family
-Cross-Platform

4. 4
AEM WI TH MONGODB
Introduction
Pros
Improves clustering
High availability
Well documented
Cons
More technology to support
Young software, new to AEM
Memory usage
“YES, I get to learn some
new stuff!!!”
“greeeeeeaaaat, more
technology to support…”
“I thought I got away
from DBAs…”

5. 5
AEM WI TH MONGODB
Introduction
When to use it?
Required for author clustering
Should I use it on stand alone authors?
Should I use it on publishers?
When not to use it?
?

6. 6
AEM WI TH MONGODB
Installation
Installed separately from AEM
Setup mongodb first
Local or dev purposes
• Easy to get up and running
Production installations
• Planning is essential
• This is where mistakes are made
http://docs.mongodb.org
/manual/installation/

7. 7
AEM WI TH MONGODB
Installation
How to connect AEM to MongoDB
java -jar AEM_6.0_Quickstart.jar –unpack
edit crx-quickstart/bin/start
CQ_RUNMODE = crx3,crx3mongo
JVM Options
-Doak.mongo.uri=mongodb://localhost:27017
Start AEM
Watch mongod.log and AEM error log
Be Patient

8. 8
What is a replica set?
Deploy in odd numbers
What is an Arbiter?
AEM WI TH MONGODB
High Availability

9. Can be geographically distributed
9
Install the majority of nodes in
primary location
Don’t want AEM connecting to
MongoDB from different data
centers
AEM WI TH MONGODB
High Availability

10. 10
AEM WI TH MONGODB
High Availability
Setting up replication
Install mongodb on each member
From one member connect to Mongodb shell
rs.initiate()
rs.add("<hostname><:port>")
rs.addArb("<hostname><:port>")
rs.conf()
rs.status()
Connecting to replica set
-
Doak.mongo.uri=mongodb://mongohost1:27017,mongohost2:27017/?replicaSet=aem
6&connectTimeoutMS=10000
Setup replication first then
install AEM 6
Test auto failover, both
with AEM and MongoDB

11. 11
AEM WI TH MONGODB
Supporting MongoDB
Production support
Back up MongoDB separately
• Only need to back up one node
Monitor it
• mongod process
• Replication status
Watch memory usage
Security concerns?
http://docs.mongodb.org/manual
/core/backups/
http://docs.mongodb.org/manual
/administration/monitoring/

12. http://docs.mongodb.org/manual
/reference/command/
12
Terminology to RDBMS
Table, View = Collection
Row = JSON Document
Index = Index
Join = Embedded Document
AEM WI TH MONGODB
Supporting MongoDB
Useful commands to know
From MongoDB shell
show dbs
use aem-author
db.stats()
rs.status()
db.currentOp()
db.serverStatus()
show log
Tools
mongodump,mongorestore
mongotop
mongostat
built in web interface

13. 13
AEM WI TH MONGODB
Live Demonstration
config files
AEM start file
mongo shell
mongotop
Mongostat
Show active connections
live failover

14. 14
Plan and get to know
MongoDB first
AEM WI TH MONGODB
Final Notes
-Required for clustering
-Setup MongoDB first
-Use replication in production
-Install 3 or more nodes in odd numbers
-Test failover process
-Be consistent across environments
-Make sure to setup permissions prior to install, also
pid file directory
-Run under a separate user

15. 15
• Thank you
– Nate Nelson, 3|Share ROM Team
• nate.nelson@3sharecorp.com
• 3|Share ROM blog