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Comment: changed cluster to cohort

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The OMRS Cluster Cohort Registry Store stores information about the repositories registered in the open metadata repository clustercohort. 

 

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Figure 1: Cluster Cohort registry stores in an open metadata repository clustercohort

Each server in the open metadata repository cluster cohort runs an OMRS Cluster Cohort Registry to manage its registration with the cluster cohort and maintain the contents of its local cluster cohort registry store. 

 

 

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Figure 2: logical structure of the cluster cohort registry store

Each member in the open metadata repository cluster cohort is represented in the cluster cohort registry store with a member registration record.  This has 3 values in it:

  • Repository Metadata Collection Id - this is a unique string that identifies the repository.
  • Registration Timestamp - this is the time that the server registered its repository.
  • Remote Connection - this is the connection information that a remote server can use to create a connector to query values in the repository.

Inside the cluster cohort registry store is a record of the local server's registration and a list of registration record for each remote repository that it knows about.

 

The OMRS Cluster Cohort Registry store is implemented as an OCF Connector so the implementation is configurable.  The initial implementation is a file based store that uses JSON.

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