Error connecting Postgres cluster on AWS

Describe the bug After upgrading to 1.8.0.Final the Postgres DataSource fails to connect. It works against a local DB, but fails with the AWS Aurora Postgres instance. The same AWS Postgres connection from DBeaver is working fine. With Quarkus 1.5.2.Final it works.

Expected behavior We expected that the connection is successful

Actual behavior Cannot connect to the AWS Postgres instance

To Reproduce

1. Define a datasource with the AWS Postgres instance
2. Execute quarkus
3. Make a connection -> Exception

Configuration

quarkus.datasource.jdbc.url=jdbc:postgresql://<aws instance>/<db name>
quarkus.datasource.db-kind=postgresql
quarkus.datasource.username=postgres
quarkus.datasource.password=postgres

Environment (please complete the following information):

• Output of uname -a or ver: Windows 10
• Output of java -version: 11
• GraalVM version (if different from Java):
• Quarkus version or git rev: 1.8.0.Final
• Build tool (ie. output of mvnw --version or gradlew --version): mvn 3.6.3

Additional context

2020-09-09 10:23:48,977 ERROR [io.qua.application] (main) Failed to start application (with profile prod): org.flywaydb.core.internal.exception.FlywaySqlException:
Unable to obtain connection from database: The connection attempt failed.
-------------------------------------------------------------------------
SQL State  : 08001
Error Code : 0
Message    : The connection attempt failed.
at org.flywaydb.core.internal.jdbc.JdbcUtils.openConnection(JdbcUtils.java:65)
at org.flywaydb.core.internal.jdbc.JdbcConnectionFactory.<init>(JdbcConnectionFactory.java:80)
at org.flywaydb.core.Flyway.execute(Flyway.java:453)
at org.flywaydb.core.Flyway.migrate(Flyway.java:158)
at io.quarkus.flyway.runtime.FlywayRecorder.doStartActions(FlywayRecorder.java:54)
at io.quarkus.deployment.steps.FlywayProcessor$createBeansAndStartActions-1520831253.deploy_0(FlywayProcessor$createBeansAndStartActions-1520831253.zig:80)
at io.quarkus.deployment.steps.FlywayProcessor$createBeansAndStartActions-1520831253.deploy(FlywayProcessor$createBeansAndStartActions-1520831253.zig:40)
at io.quarkus.runner.ApplicationImpl.doStart(ApplicationImpl.zig:543)
at io.quarkus.runtime.Application.start(Application.java:90)
at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:92)
at io.quarkus.runtime.Quarkus.run(Quarkus.java:61)
at io.quarkus.runtime.Quarkus.run(Quarkus.java:38)
at io.quarkus.runtime.Quarkus.run(Quarkus.java:106)
at io.quarkus.runner.GeneratedMain.main(GeneratedMain.zig:29)
Caused by: org.postgresql.util.PSQLException: The connection attempt failed.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:315)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:51)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:225)
at org.postgresql.Driver.makeConnection(Driver.java:465)
at org.postgresql.Driver.connect(Driver.java:264)
at io.agroal.pool.ConnectionFactory.createConnection(ConnectionFactory.java:200)
at io.agroal.pool.ConnectionPool$CreateConnectionTask.call(ConnectionPool.java:419)
at io.agroal.pool.ConnectionPool$CreateConnectionTask.call(ConnectionPool.java:401)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at io.agroal.pool.util.PriorityScheduledExecutor.beforeExecute(PriorityScheduledExecutor.java:65)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1126)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.io.EOFException
at org.postgresql.core.PGStream.receiveChar(PGStream.java:443)
at org.postgresql.core.v3.ConnectionFactoryImpl.enableGSSEncrypted(ConnectionFactoryImpl.java:436)
at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:144)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:213)
... 12 more

[OleKsimov]

Our team has faced the same problem. We have Java 11, Postgres 11, Azure cluster, and flyway for migrations. Everything works fine for Quarkus 1.7.0 or 1.7.1, but Flyway fails to connect to datasource when the version is 1.8.0 or 1.8.1. We’ve tried to connect to remote DB and to localhost container with Postgres, it works. Something wrong happens during connection to Azure.

[wswoboda]

The problem should be fixed with driver version 42.2.18. Please bump the version in one of the next releases. https://github.com/pgjdbc/pgjdbc/issues/1868