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Multi-Server Cloud Environments

Multi-Server Cloud Environments. How to fight latency and add redundancy. Stop me if this is familiar. <Person a> We need a redundant system. <Person b> The Cloud! I heard that makes it easy! <Person a> Perfect, let’s get IT to make that happen, next order of business...

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Multi-Server Cloud Environments

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  1. Multi-Server Cloud Environments How to fight latency and add redundancy

  2. Stop me if this is familiar <Person a> We need a redundant system. <Person b> The Cloud! I heard that makes it easy! <Person a> Perfect, let’s get IT to make that happen, next order of business... … later that week... <IT> $@%$@# this is hard, why doesn’t the cloud make this easy?!

  3. Your first day in the cloud

  4. Complications of Cloud Redundancy • Database Replication and port over • Load Balancing App Servers • Search (SOLR, Sphinx) Scalability and Redundancy • Caching Servers • Shared File Systems

  5. How does the cloud make it easier • Easy to replace damaged “hardware” • Easy to test software changes with temporary servers • Easy to test OS upgrades and switch out • Easy to upgrade “hardware”

  6. How does the cloud make it harder • Hard to predict network proximity • Persistence • Whole Zone Failures

  7. As soon as Nick finds a solution

  8. Amazon RDS • Multi-AZ • Point-In-Time Restore • Automatic Replication • Seamless Hardware Upgrades • Automatic Maintenance and Patches

  9. Elastic Load Balancer • Really simple load balancing • Multi-Server redundant • Actually cheaper than a small instance • Server Monitoring built in • Lightning Fast packet level balancing

  10. CloudSearch • Really fast Search • Automatic vertical and horizontal scaling • Basically all core SOLR features • Many plugin SOLR features too • Easy API

  11. NFS Sucks!

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