java.lang.RuntimeException: java.sql.SQLException: Exception d'E/S: The Network Adapter could not establish the connection

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java.sql.SQLException: Échec de l'ouverture de session de l'utilisateur 'dwh_user'.
java.lang.RuntimeException: java.sql.SQLException: Exception d'E/S: The Network Adapter could not establish the connection
at org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:195)
at org.talend.core.model.metadata.builder.database.ExtractMetaDataUtils.connect(ExtractMetaDataUtils.java:1089)
at org.talend.core.model.metadata.builder.database.ExtractMetaDataFromDataBase.testConnection(ExtractMetaDataFromDataBase.java:314)
at org.talend.metadata.managment.repository.ManagerConnection.check(ManagerConnection.java:272)
at org.talend.repository.ui.wizards.metadata.connection.database.DatabaseForm$31.runWithCancel(DatabaseForm.java:2674)
at org.talend.repository.ui.wizards.metadata.connection.database.DatabaseForm$31.runWithCancel(DatabaseForm.java:1)
at org.talend.repository.ui.dialog.AProgressMonitorDialogWithCancel$1.runnableWithCancel(AProgressMonitorDialogWithCancel.java:77)
at org.talend.repository.ui.dialog.AProgressMonitorDialogWithCancel$ARunnableWithProgressCancel$1.call(AProgressMonitorDialogWithCancel.java:161)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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