Job Description :
Business Requirement
User has interface to Mobile and Web to see Card transactions. This mobile/web gets transactions data from Elastic Search (ver 2.0 Indexing happens here and also delta of transactions is appended to existing data for a consumer. There are some REST APIs between Processor and Elastic search to push delta of transactions.

Current problem
The indexing is not working correctly and there are some breakages in transaction reports due to this.
Solution
Upgrade Elastic Search 2.0 to latest version 6.3
Replace REST APIs with C# drivers
Nature of project
Critical as it involves dollars and already in production. Deployment cannot go wrong. Needs thorough testing
             

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