Experience how XAP scales web servers based on load. Learn how our In-Memory Data Grid performs automatic recovery when a machine failes.

1. GigaSpaces Scalability Live Demo

9. Stock Application Home Page Stock data exposed via REST

11. Application Home Page – Statistics Space (data) statistics JVM statistics Web statistics

14. Web Container Auto-Scaling Load Balancer monitors web availability Web Web Load-Balancer

15. Web Web Web Load-Balancer Web Container Auto-Scaling A new machine is started when the requests-per-second threshold is breached

16. Increase Load – Auto-scale-out Click View Stocks twice A total of 3 “View Stocks” pages are open. Note that the gauge is above threshold.

17. Increase Load – Auto-scale-out Wait for a machine to start automatically.

18. Increase Load – Auto-scale-out When the machine starts, the number of web Processing Units (PUs) increases from 2 to 3

19. Decrease Load – Auto-scale-in Close 2 “View Stocks” pages (leave only 1 open) Note the gauge is below threshold

20. Decrease Load – Auto-scale-in Wait until a Web_Container machine is automatically terminated (scaling in back to 2 machines). This might take a few minutes

23. Automatic Failover of Data Grid Stock updates are replicated to backup Partition 1 Active Partition 2 Backup Partition 2 Active Partition 1 Backup Write Data Replication

24. Automatic Failover of Data Grid When a machine fails, backup becomes primary Partition 1 Active Partition 2 Active Partition 1 Backup Partition 2 Active Write Data

25. Automatic Recovery of Data Grid A new machine is started, backups are deployed Partition 2 Backup Partition 1 Backup Partition 1 Active Partition 2 Active Write Data Replication

26. Automatic Recovery of Data Grid Number of active instances is re-balanced Replication Partition 1 Active Partition 2 Backup Partition 2 Active Partition 1 Backup Write Data