Redshift load frequency, connection and concurrent load problem

[alok87]

With many redshiftsink resources, the number of connections to Redshift increases. When so many Redshift tables are concurrently sinked and loaded it becomes a problem.

As all maxWaitSeconds are applied together and are same !
Almost all tables load starts at the same time, making the load slow.

Need to figure out a way to solve this.

[alok87]

Also created a stackoverflow question for it https://stackoverflow.com/questions/67278497/realtime-data-pipeline-to-redshift-bottleneck-parallel-load-of-multiple-tables

[alok87]

This greatly solves this #233