- Most likely you do NOT need cloud computing
- The best way to think about cloud computing is “Data Center with API”
- You will spend weeks and months fine tuning your cloud based application
- You are about to deal with 100s and 1000s of remote nodes
- You cannot rely on the fact that environment will be homogeneous
- Debugging problem on a cloud scale requires deep understanding of distributed computing
- IP multicast will likely not work or work with significant networking limitations.
- Traffic inside is very cheap or free – but traffic outside is expensive and can “get you” very quickly
- If you have to use cloud all the time, the economics change and it may be cheaper to traditionally rent in a data center
- Up time and per-computer reliability is low – comprehensive failover support on grid middleware is a must
- Static IPs are not guaranteed
- Almost always plan on having multiple clouds
- External clouds may present data sharing problems
- Carefully think through dev/qa/prod layout and how this is all organized
- Clunky (re)deployment of your application onto the cloud can stop your development process
- Connections are often one-directional so comprehensive communication capabilities supporting one-directional connectivity and disjoint clouds in grid middleware is a must
- Cloud are implemented based on hardware virtualization – make sure your grid middleware can dynamically provision such images on demand
- Stick with open source stack
- Linear scalability can only be achieved in a control test environment. Real world applications will exhibit non-linear scalability.
- [His] Personal recommendation: use Amazon EC2/S3 services
Observations and comments on cloud computing, cyber security, cognitive computing and big data analytics. Hi, Impact
Friday, September 12, 2008
20 Real-Life Challenges of Cloud Computing
Nikita Ivanov of GridGain offers some excellent insight into the nuts and bolts of getting the cloud to work. Definitely worth a read. To summarize:
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