We are trying to build an index using 2 data sources. Data source A is the actual database where all records are updated regularly. Data source B is a referential database. It contains ids of some elements of data source A and other information associated with it.
So what we need to achieve is create documents using data source A and then monitor data source A for any updates. Update(add fields) using data source B and monitor those fields using data source B.
Does any body has any idea how this can be achieved using logstash or do we need to write code(java) specifically for that purpose without logstash.