Wildfly 14 Verbindung zu Remote PostgreSQL "WFLYJCA0047: Verbindung ist nicht gültig"

Ich habe auf CentOS 7 eine neue WildFly-Instanz installiert. Ich versuche, eine Verbindung zu einer entfernten PostgreSQL-Instanz herzustellen.

So mache ich das, indem Sie die PostgreSQL-JDBC-Dose für WildFly bereitstellen und mit dieser eine Datenquelle erstellen. Ich habe das alles über die Webkonsole gemacht.

Hier ist meine Datenquellenkonfiguration:

meine Datenquellenkonfiguration

Hier ist meine Datenquellenkonfiguration in standalone.xml

<datasource jndi-name="java:/PostgresDS" pool-name="PostgresDS"> <connection-url>jdbc:postgresql://10.130.31.43:5432/postgresdb</connection-url> <driver-class>org.postgresql.Driver</driver-class> <datasource-class>org.postgresql.ds.PGSimpleDataSource</datasource-class> <driver>postgresql-42.2.5.jar</driver> <security> <user-name>admin</user-name> <password>admin</password> </security> <validation> <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLValidConnectionChecker"/> <background-validation>true</background-validation> <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLExceptionSorter"/> </validation> </datasource> 

Bei jedem Test der Verbindung wird dieser Fehler zurückgegeben:

2018-10-30 11:28:46,392 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (External Management Request Threads -- 1) IJ000604: Throwable while attempting to get a new connection: null: javax.resource.ResourceException: IJ031084: Unable to create connection at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:345) at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:352) at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:287) at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.createConnectionEventListener(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1326) at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.getConnection(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:499) at org.jboss.jca.core.connectionmanager.pool.AbstractPool.internalTestConnection(AbstractPool.java:1067) at org.jboss.jca.core.connectionmanager.pool.strategy.OnePool.testConnection(OnePool.java:93) at org.jboss.as.connector.subsystems.common.pool.PoolOperations$TestConnectionInPool.invokeCommandOn(PoolOperations.java:240) at org.jboss.as.connector.subsystems.common.pool.PoolOperations$1.execute(PoolOperations.java:97) at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:999) at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:743) at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:467) at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1411) at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:423) at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:243) at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:265) at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:231) at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:243) at org.jboss.as.domain.http.server.DomainApiHandler.handleRequest(DomainApiHandler.java:212) at io.undertow.server.handlers.encoding.EncodingHandler.handleRequest(EncodingHandler.java:72) at org.jboss.as.domain.http.server.DomainApiCheckHandler.handleRequest(DomainApiCheckHandler.java:93) at org.jboss.as.domain.http.server.security.ElytronIdentityHandler.lambda$handleRequest$0(ElytronIdentityHandler.java:62) at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:289) at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:246) at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:254) at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:225) at org.jboss.as.domain.http.server.security.ElytronIdentityHandler.handleRequest(ElytronIdentityHandler.java:61) at io.undertow.server.handlers.BlockingHandler.handleRequest(BlockingHandler.java:56) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:360) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378) at java.lang.Thread.run(Thread.java:748) at org.jboss.threads.JBossThread.run(JBossThread.java:485) Caused by: org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections. at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:280) at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:195) at org.postgresql.Driver.makeConnection(Driver.java:454) at org.postgresql.Driver.connect(Driver.java:256) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:247) at org.postgresql.ds.common.BaseDataSource.getConnection(BaseDataSource.java:94) at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:314) ... 35 more Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at org.postgresql.core.PGStream.<init>(PGStream.java:70) at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:91) at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:192) ... 43 more  2018-10-30 11:28:46,393 ERROR [org.jboss.as.controller.management-operation] (External Management Request Threads -- 1) WFLYCTL0013: Operation ("test-connection-in-pool") failed - address: ([ ("subsystem" => "datasources"), ("data-source" => "PostgresDS") ]) - failure description: "WFLYJCA0040: failed to invoke operation: WFLYJCA0047: Connection is not valid" 

Ich bin verwirrt, im Stacktrace wird localhost:5432erwähnt. Ich habe die Verbindungs-URL definiert, und diese wird auch geschrieben standalone.xml.

Gibt es einen anderen Grund, warum WildFly das definierte nicht verwendet connection-urlund stattdessen standardmäßig verwendet localhost:5432? Und gibt es einen anderen Grund, warum WildFly wirft WFLYJCA0047: Connection is not valid?