Matt Burgess created NIFI-3413:
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Summary: Implement a GetChangeDataCapture processor
Key: NIFI-3413
URL: https://issues.apache.org/jira/browse/NIFI-3413
Project: Apache NiFi
Issue Type: New Feature
Components: Extensions
Reporter: Matt Burgess
Database systems such as MySQL, Oracle, and SQL Server allow access to their
transactional logs and such, in order for external clients to have a "change
data capture" (CDC) capability. I propose a GetChangeDataCapture processor to
enable this in NiFi.
The processor would be configured with a DBCPConnectionPool controller service,
as well as a Database Type property (similar to the one in QueryDatabaseTable)
for database-specific handling. Additional properties might include the CDC
table name, etc. Additional database-specific properties could be handled
using dynamic properties (and the documentation should reflect this).
The processor would accept no incoming connections (it is a "Get" or source
processor), would be intended to run on the primary node only as a single
threaded processor, and would generate a flow file for each operation (INSERT,
UPDATE, DELETE, e,g,) in one or some number of formats (JSON, e.g.). The flow
files would be transferred in time order (to enable a replication solution, for
example), perhaps with some auto-incrementing attribute to also indicate order
if need be.
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