Just a heads-up, @llabe027, you technically don’t need to stop shredding process - but it is useless if you want to load data only in Snowflake.
Snowplow pipeline consists of three (actually more, but this is irrelevant now) steps: Enrich, Transform, Load. Where Enrich is always primary and common step, no matter what you’re going to do with your data: load to particular DB, process with Spark or Athena or anything else.
EmrEtlRunner by default launches Enrich and then RDB Shredder (Transform step) and RDB Loader (Load step, obviously) to load data to Redshift. But if you’re planning to load only to Snowflake, you can get away without RDB Shredder/Loader as @egor mentioned and instead launch Snowflake Transformer and Snowflake Loader, which will use same enriched data. Difference is that Snowflake loading cannot be launched via EmrEtlRunner, but instead dataflow-runner should be used, which is more generic (nothing snowplow-specific) tool to orchestrate jobs.
Also, am I right that you use Setup Guide from our wiki?