Question

I am looking for a generic way to ‘securely’ share information between different nodes in an cluster. This information will just be a string however this transfer must happen via SSL.

Performance is not an concern but the information must always be latest.

I have looked at various options –

1. Use ehcache in a clustered mode. But currently it does not allow communication between nodes using SSL.

2. Store the information in the Database and access it. However I don’t want to go this route since someone with DB access can change the values and I want to avoid this(Can’t explain why).

Is there a solution(preferably free) which will allow me to achieve the above?

Answer 1

I researched this issue and finally decided to use Hazelcast cluster to share information.

From the Hazelcast website –

Hazelcast will help you when you need to:

• Share data/state among many servers (e.g. web session sharing)
• Cache your data (distributed cache)
• Cluster your application Provide secure communication among servers Partition your in- memory data Distribute workload onto many servers
  Take advantage of parallel processing
• Provide fail-safe data management

I followed these steps to setup everything – http://serversidestuff.blogspot.sg/2012/11/sharing-information-across-cluster.html