Hello everyone

I’m newcomer for here and mainly using elixir language. Currently I’m trying to connect my system (Elixir) with an Azure Database for PostgreSQL using ssl certificate. I downloaded the certificate from the blue documents page (f.e.: BaltimoreCyberTrustRoot.crt.pem), but every time I try to run the system it throws the following error:

12:50:29.007 [error] Postgrex.Protocol (pid<0.165.0>) failed to connect: ** (DBConnection.ConnectionError) ssl connect: closed
12:50:29.019 [error] Postgrex.Protocol (pid<0.164.0>) failed to connect: ** (DBConnection.ConnectionError) ssl connect: closed
12:50:30.981 [error] Postgrex.Protocol (pid<0.165.0>) failed to connect: ** (DBConnection.ConnectionError) ssl connect: closed
12:50:31.254 [error] Postgrex.Protocol (pid<0.164.0>) failed to connect: ** (DBConnection.ConnectionError) ssl connect: closed
12:50:31.445 [error] Could not create schema migrations table. This error usually happens due to the following:

• The database does not exist
• The “schema_migrations” table, which Ecto uses for managing
  migrations, was defined by another library
• There is a deadlock while migrating (such as using concurrent
  indexes with a migration_lock)

To fix the first issue, run “mix ecto.create”.

To address the second, you can run “mix ecto.drop” followed by
“mix ecto.create”. Alternatively you may configure Ecto to use
another table and/or repository for managing migrations:

config :database, Database.Repo,
  migration_source: "some_other_table_for_schema_migrations",
  migration_repo: AnotherRepoForSchemaMigrations

The full error report is shown below.

** (DBConnection.ConnectionError) connection not available and request was dropped from queue after 2983ms. This means requests are coming in and your connection pool cannot serve them fast enough. You can address this by:

1. Ensuring your database is available and that you can connect to it
2. Tracking down slow queries and making sure they are running fast enough
3. Increasing the pool_size (albeit it increases resource consumption)
4. Allowing requests to wait longer by increasing :queue_target and :queue_interval

Can someone help me?