question Re: How does spark support connecting to two different databases in a single app in Archives of Support Questions (Read Only)

How does spark support connecting to two different databases in a single app

naresh_ar7 — Mon, 01 Oct 2018 23:40:04 GMT

I'm thinking to connect spark from MySQL to Postgres in one single app could anyone help me how to do it I have tried adding jars of both the DB's in the classpath but either of the one works, please shed light or guide me on this

Re: How does spark support connecting to two different databases in a single app

sandyy006 — Tue, 02 Oct 2018 13:03:00 GMT

@Naresh AR

You can create 2 different dataframes with 2 different jdbc sources(one with mysql and another one with postgres) and make sure both the jdbc jars are present in spark's classpath.

Re: How does spark support connecting to two different databases in a single app

naresh_ar7 — Fri, 05 Oct 2018 03:42:38 GMT

@Sandeep Nemuri my use case was to move the MySQL data to PostgreSQL for which my cluster has 5tb ram and data may grow (as of now 200Million) is that achievable from spark and will that affect the cluster.

Previously data transfer was from sqoop to hive and then any target db