Cannot connect to Postgres database , there is authentication issue [duplicate] - spring

Question

I have recently tried my hands on Postgres. Installed it on local (PostgreSQL 13.0).
Created a maven project and used Spring Data JPA, works just fine. Whereas when I tried using Gradle project, I am not able to connect to the DB and keep getting the following error.
org.postgresql.util.PSQLException: The authentication type 10 is not
supported. Check that you have configured the pg_hba.conf file to
include the client's IP address or subnet, and that it is using an
authentication scheme supported by the driver. at
org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:614)
~[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:222)
~[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
~[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.jdbc.PgConnection.(PgConnection.java:194)
~[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.Driver.makeConnection(Driver.java:450)
~[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.Driver.connect(Driver.java:252)
~[postgresql-42.1.4.jar:42.1.4] at
java.sql.DriverManager.getConnection(Unknown Source) [na:1.8.0_261]
at java.sql.DriverManager.getConnection(Unknown Source)
[na:1.8.0_261] at
org.postgresql.ds.common.BaseDataSource.getConnection(BaseDataSource.java:94)
[postgresql-42.1.4.jar:42.1.4] at
org.postgresql.ds.common.BaseDataSource.getConnection(BaseDataSource.java:79)
[postgresql-42.1.4.jar:42.1.4]
I tried using JDBCTemplate as well. Doesn't work
Modified the pg_hba.cfg file referring to this post - Doesn't work
Used the deprecated Lib of - Doesn't Work either.
Please Suggest me a solution for this problem.
My code and Config:
#Configuration
public class DataSourceConfig {
#Bean
public DriverManagerDataSource getDataSource() {
DriverManagerDataSource dataSourceBuilder = new DriverManagerDataSource();
dataSourceBuilder.setDriverClassName("org.postgresql.Driver");
dataSourceBuilder.setUrl("jdbc:postgresql://localhost:5432/postgres");
dataSourceBuilder.setUsername("postgres");
dataSourceBuilder.setPassword("root");
return dataSourceBuilder;
}
}
#Component
public class CustomerOrderJDBCTemplate implements CustomerOrderDao{
private DataSource dataSource;
private JdbcTemplate jdbcTemplateObject;
#Autowired
ApplicationContext context;
public void setDataSource() {
//Getting Bean by Class
DriverManagerDataSource dataSource = context.getBean(DriverManagerDataSource.class);
this.dataSource = dataSource;
this.jdbcTemplateObject = new JdbcTemplate(this.dataSource);
}
#Override
public Customer create(Customer customer) {
setDataSource();
String sql = "insert into CustomerOrder (customerType, customerPayment) values (?, ?)";
//jdbcTemplateObject.update(sql, customerOrder.getCustomerOrderType(), customerOrder.getCustomerOrderPayment());
KeyHolder holder = new GeneratedKeyHolder();
jdbcTemplateObject.update(new PreparedStatementCreator() {
#Override
public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
PreparedStatement ps = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
ps.setString(1, customer.getType());
ps.setString(2, customer.getPayment());
return ps;
}
}, holder);
long customerId = holder.getKey().longValue();
customer.setCustomerID(customerOrderId);
return customer;
}
}
dependencies
implementation('org.springframework.boot:spring-boot-starter-web')
compile("org.springframework.boot:spring-boot-devtools")
compile(group: 'org.postgresql', name: 'postgresql', version: '42.1.4')
compile("org.springdoc:springdoc-openapi-ui:1.4.1")
compile("org.springframework:spring-jdbc:5.2.5.RELEASE")
password_encryption is set like this:
postgres=# show password_encryption;
password_encryption
---------------------
scram-sha-256
(1 row)

Answer 1

I solved similar issue by applying below steps in PostgreSQL Version 13:
Change password_encryption to md5 in postgresql.conf
Windows: C:\Program Files\PostgreSQL\13\data\postgresql.conf
GNU/Linux: /etc/postgresql/13/main/postgresql.conf
Change scram-sha-256 to md5 in pg_hba.conf
Windows: C:\Program Files\PostgreSQL\13\data\pg_hba.conf
GNU/Linux: /etc/postgresql/13/main/pg_hba.conf
host all all 0.0.0.0/0 md5
Change Password ( this restore password in md5 format).
Example: ALTER ROLE postgres WITH PASSWORD 'root';
Make sure you set listen_addresses = '*' in postgresql.conf if you are working non production environment.

Answer 2

According to the wiki, the supported JDBC driver for SCRAM-SHA-256 encryption is 42.2.0 or above.
In my case, the driver was 41.1.1. Change it to 42.2.0 or above. That fixed it for me.
(Maven, pom.xml):
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.0</version>
</dependency>

Answer 3

Get your pg_hba.conf File in the Directory
C:\Program Files\PostgreSQL\13\data\pg_hba.conf
And Simply Change scram-sha-256 under Column Method to trust.
It worked For me!

Answer 4

By setting password_encryption to scram-sha-256 (which is the default value in v13) you also get scram-sha-256 authentication, even if you have md5 in pg_hba.conf.
Now you are using an old JDBC driver version on the client side that does not support that authentication method, even though PostgreSQL introduced it in v10, three years ago.
You should upgrade your JDBC driver. An alternative would be to set password_encryption back to md5, but then you'll have to reset all passwords and live with lower security.

Answer 5

<?xml version="1.0" encoding="UTF-8"?>
4.0.0
<groupId>org.example</groupId>
<artifactId>postgresJDBC</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>11</java.version>
<maven.compiler.target>${java.version}</maven.compiler.target>
<maven.compiler.source>${java.version}</maven.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.18</version>
</dependency>
</dependencies>
you have to check your maven dependency if you are using postgresql 9.1+ then your dependency should be like above
to know about maven dependency refer this link How do you add PostgreSQL Driver as a dependency in Maven?

Answer 6

Change METHOD to "trust" in pg_hba.conf

Answer 7

In case you are struggling to get this working in Docker:
Firstly: run the container with -e POSTGRES_HOST_AUTH_METHOD=md5 (doc)
docker run -e POSTGRES_HOST_AUTH_METHOD=md5 -e POSTGRES_PASSWORD=doesntmatter -p 5432:5432 --name CONTAINERNAME -d postgres
Secondly: allow md5 encryption as discussed in other answers:
docker exec -ti -u postgres CONTAINERNAME bash -c "echo 'password_encryption=md5' >> /var/lib/postgresql/data/postgresql.conf"
Thirdly: restart the container
docker restart CONTAINER NAME
Fourthly: you need to recreate the postgres password in md5 format
docker exec -ti -u postgres CONTAINERNAME psql
alter role postgres with password 'THE-NEW-PASSWORD';
* please be aware scram-sha-256 is much better than md5 (doc)

Answer 8

use these :
wget https://jdbc.postgresql.org/download/postgresql-42.2.24.jar
Copy it to your hive library
sudo mv postgresql-42.2.24.jar /opt/hive/lib/postgresql-42.2.24.jar

Answer 9

For me, updating the postgres library helped fixing this.

Answer 10

working fine with version 12.6 ... just downgrade the PostgreSQL

Answer 11

You might need to check the version of Postgres you are running. Migh need to update spring version if the version is being pointed through spring parent.
In my case: since current postgres is at v13. Modified spring parent version: it was on 1.4; made it to match to 2.14. Finally update maven dependency and re-run the application.This fixed the issue.

Answer 12

Suggestions:
Current JDBC driver will help (e.g. postgresql-42.3.6.jar)
Copy it to the /jars folder under your spark install directory (I'm assuming a single machine here in this example)
Python - install "findspark" to make pyspark importable as a regular library
Here is an example I hope will help someone:
import findspark
findspark.init()
from pyspark.sql import SparkSession
sparkClassPath = "C:/spark/spark-3.0.3-bin-hadoop2.7/jars"
spark = SparkSession \
.builder \
.config("spark.driver.extraClassPath", sparkClassPath) \
.getOrCreate()
df = spark.read \
.format("jdbc") \
.option("url", "jdbc:postgresql://{YourHostName}:5432/{YourDBName}") \
.option("driver", "org.postgresql.Driver") \
.option("dbtable", "{YourTableName}") \
.option("user", "{YourUserName") \
.option("password", "{YourSketchyPassword") \
.load()
Install pgadmin if you have not already done so.
Try it via Docker

Answer 13

You need to download postgresql..jar and then move it into .../jre/lib/ext/ folder. It worked for me

Answer 14

Even after changing pg_hba.conf to MD5 on everything it didn't work.
What worked was doing this:
show password_encryption;
If it shows up as being scram-sha-256 do this:
set password_encryption = 'md5';
Restart server, this solved my issue

Answer 15

Use latest maven dependency for Postgres in pom.xml

Answer 16

Changing trust for ipv4 local connect worked for me.
Solution:
Get your pg_hba.conf File in the Directory C:\Program Files\PostgreSQL\13\data\pg_hba.conf
And Simply Change scram-sha-256 under Column Method to trust.

Answer 17

I guess the solution to this problem is using version 9.6.
It works just fine after changing the version.

Answer 18

Open pg_hba.conf
Set IPv4 local connections to trust