Unable to acquire a connection from driver jpa

NamedQuery; import javax. Table; import javax. Size; import javax. Iterator; import java. List; import javax. EntityManager; import javax. EntityManagerFactory; import javax. EntityTransaction; import javax. Persistence; import javax. Final [EL Warning]: DatabaseException Exception in thread "main" javax. Verify that you have set the expected driver class and URL. Check your login, persistence.

The jdbc. Add a comment. Active Oldest Votes. I got the same exception. Declare a persistence. It looks like your persistence. Is it on the classpath? James Sutherland. There is no password set for the database. And After I did the changes to the persistance. I did the both the changes. But still it gives the same problem. The Exception is [EL Info]: I don't understand where the problem is?

With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime. HikariConfig - isolateInternalQueries HikariConfig - jdbc4ConnectionTest HikariConfig - jdbcUrl HikariConfig - leakDetectionThreshold HikariConfig - maxLifetime HikariConfig - maximumPoolSize HikariConfig - metricRegistry HikariConfig - metricsTrackerFactory HikariConfig - minimumIdle HikariConfig - password HikariConfig - poolName HikariConfig - readOnly HikariConfig - registerMbeans HikariConfig - scheduledExecutor HikariConfig - scheduledExecutorService HikariConfig - schema HikariConfig - threadFactory HikariConfig - transactionIsolation HikariConfig - username HikariConfig - validationTimeout HikariPool - HikariPool-1 - Added connection com.

Dialect - HHH Using dialect: org. ProxyLeakTask - Connection leak detection triggered for com. JDBC4Connection 64fd5 on thread http-nioexec-9, stack trace follows java.

Exception: Apparent connection leak detected at com. Hi Brett, thank you for answering so fast! JDBC4Connection dbd. Attempted reconnect 3 times. Giving up. HikariPool - HikariPool-1 - Cannot acquire connection from data source com.

SqlExceptionHelper - Could not create connection to database server. Exception: javax. JDBC4Connection 19ddd00e due to dirty commit state on close. JDBC4Connection 4ba8a JDBC4Connection 19ddd00e on thread http-nioexec-2, stack trace follows java. Data source rejected establishment of connection, message from server: "Too many connections". Connection is not available, request timed out after ms. But now I explicit defined to false. I will try to use FlexyPool. Thank you! Using a non-CP is not really a fix for your issue.

I didn't activated. Weird how you got that enabled explicitly. Using Spring, Hikari, Hibernate, Postgres. Any help would be highly appreciated. ConnectionImpl f0f3 Communications link failure The last packet successfully received from the server was , milliseconds ago. The last packet sent successfully to the server was 5, milliseconds ago. ConnectionImpl f0f3 failed com. CommunicationsException: Communications link failure The last packet successfully received from the server was , milliseconds ago.

CJCommunicationsException: Communications link failure The last packet successfully received from the server was , milliseconds ago. SocketTimeoutException: Read timed out at java. ConnectionImpl ad2. Sign up for free to join this conversation on GitHub. Already have an account?