Tracking the update or changes in mysql table
This topic is very interesting for me now, so because it Up, some last information:

Replication is good, but what if You need replicate data to different technology Target System (for example Redshift)

I found and test few implementations for change data capture:

1) MariaDB MaxScale CDC - my personal test was unsuccessful (and builded from source and binary distribution return link for missed plugin). Ask a questions, wait for answer.

2) StreamSets - simulate slave, ship changes to Kafka MQ. Tested on real loading, work perfect

3) Yelp 

4) Maxwell Daemon - under test now, example with NiFi - NiFI examples

5) Python Library - also simulate a slave for remote server

6) Lapidus - NodeJS implementations

Few other links also founded, some under active maintenance, some look like forgotten.

From the tests, StreamSets look very good, Maxwell also very interesting
MaxScale - sure it work, but may be available only under subscription support.

From "other" side - Talend as primary data integration tools, Redshift, memSQL.