This is the slide deck of the Zend webinar "Unveiling Zend Server Cluster Manager". This webinar introduces Zend Server Cluster Manager, Zend's new solution for managing clustered PHP applications. We'll discuss how you can use Zend Server Cluster Manager to help ensure high availability and to make managing, adding, and removing servers easy. We'll go into depth on the features of Zend Server Cluster Manager including session clustering, central monitoring and management, and more. You can watch the related webinar at http://bit.ly/mSXl5B, after a short registration.

1. Introducing
Zend Server Cluster Manager
Joshua Solomin
Zend Technologies
To watch the webinar please go to:
http://www.zend.com/webinar/ZSCM/70170000000bHvH-webinar-
unveiling-zscm-20100629.flv
© All rights reserved. Zend Technologies, Inc.

2. Housekeeping
•All phone lines are muted
•Submit the questions via WebEx chat any time
•Q&A at the end
•Recording will be available
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3. Zend Server
PHP Stack Performance Monitoring &
Optimization Code Tracing
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4. When Your Application Grows…
PHP Stack Performance
Optimization
Monitoring &
Code Tracing
• How do you scale?
• How do you find problems?
• How do you isolate problems?
• How do you provide failover?
• How do you ensure consistent
configuration?
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5. Zend Server + Zend Server Cluster Manager
PHP Stack Performance Monitoring & Session Configuration Centralized
Optimization Code Tracing Clustering Management Monitoring
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6. Solutions for the Full Application Lifecycle
Partners/Integrations
PHP Application
Lifecycle
Partners/Integrations
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7. Zend Server Cluster Manager Architecture
MySQL
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8. Session Clustering
“Go on failing. Go on. Only next time, try to fail better. “
Samuel Beckett
© 2009 All rights reserved. Zend Technologies, Inc.

9. PHP Session Storage with Zend Server
• Configured by Zend Server Cluster Manager
• Uses daemons running on all Zend Server instances
• Session data stored in-memory or on disk
• Redundancy is built-in
• Fast, scales well and provides a reliable failover
• Very simple to set up and manage
• Good fit to cloud environments
• Graceful shutdown – for server maintenance and scale down
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10. How it Works
SCD SCD SCD SCD
Server A Server B Server C Server D
Load Balancer
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11. 1st Request: no session ID
Session is created on server B,
Server D, being the least loaded server, is selected as backup
SCD SCD SCD SCD
Server A Server B Server C Server D
Load Balancer
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12. 2nd Request: has session ID
Cookie says “B is master, D is backup”
Server C relays request to Server B (master)
Server B updates Server D (backup) after session_write_close()
SCD SCD SCD SCD
Server A Server B Server C Server D
Load Balancer
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13. 3rd Request: master goes down
Server A tries to reach Server B (master), then switches to Server D (backup).
Server D will become master and find a new backup (Server C)
SCD SCD SCD SCD
Server A Server B Server C Server D
X
Load Balancer
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14. Learn More About Session Storage
• Technical white paper on how to
Implement a Scalable Failover Solution
for PHP Sessions
http://www.zend.com/en/products/server-cluster-manager
• Webinar – “Scalable High-Availability
Session Storage with Zend Server
Cluster Manager”
View live webinar or a recording on www.zend.com
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15. Centralized Monitoring
“It is nice to know that the computer understands the problem.
But I would like to understand it too. “
Eugene Wigner
© 2009 All rights reserved. Zend Technologies, Inc.

16. From Individual Zend Server Monitoring…
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17. … to Centralized Monitoring
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18. Monitoring & Code Tracing
• New cluster-specific event types added:
 Server Added/Removed
 Server Configuration Out of Sync
 Server not Responding
• Events are aggregated for improved usability
• Events and code trace meta-data written to the central DB
• Actual code trace files are saved on the server disk
• Periodical cleanup of events and traces in the nodes
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19. Configuration Management
“You have people that don't have configuration management, don't have
vulnerability management, don't have patch management.
Kevin Mitnick
© 2009 All rights reserved. Zend Technologies, Inc.

20. Configuration Management
• Ensures consistent PHP configuration across a cluster
• All servers added to a cluster automatically configured
• A periodical background configuration check
• Alerts on configuration mismatch
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21. High Scalability
© 2009 All rights reserved. Zend Technologies, Inc.

22. Scalability with Zend Server Cluster Manager
• Scalable session clustering mechanism
• Adding Zend Server instances to a cluster is fast and easy
• Centralized monitoring and diagnostics
• Works well in the Cloud
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23. Zend Server Cluster Manager
vs. Zend Platform
© 2009 All rights reserved. Zend Technologies, Inc.

24. Zend Server Cluster Manager vs. Zend Platform
• Uses current-generation Zend Server technology
• Supports highly dynamic server environments, e.g. Cloud
• Much simpler installation, using OS native installers
• Improved configuration management, e.g. monitoring
• Much improved ease-of-use, greatly simplified web UI
• Much friendlier licensing
• Zend committed to helping Zend Platform customers with
the migration to Zend Server Cluster Manager
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25. Where do I go from here?
• Read more on www.zend.com
• Download trials (Zend Server+Zend Server Cluster Manager)
• Contact us through zend.com, Facebook, Twitter
• Meet us at ZendCon in Santa Clara, CA, Nov 1-4, 2010
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26. Q&A
© 2009 All rights reserved. Zend Technologies, Inc.

27. Webinar
To watch the webinar please go to:
http://www.zend.com/webinar/ZSCM/70170000000bHvH-
webinar-unveiling-zscm-20100629.flv
or
http://bit.ly/mSXl5B
(short registration required)
27 © All rights reserved. Zend Technologies, Inc.