org.postgresql.util.PSQLException: Connection to :7432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

talendforge.org | 6 months ago
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  1. 0

    org.postgresql.util.PSQLException: Connection to server:port refused. (Page 1) / Big Data - Configuration, usage and feedback / Talend Community Forum

    talendforge.org | 6 months ago
    org.postgresql.util.PSQLException: Connection to :7432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
  2. 0

    org.postgresql.util.PSQLException: Connection to server:port refused. (Page 1) / Big Data - Configuration, usage and feedback / Talend Community Forum

    talendforge.org | 6 months ago
    org.postgresql.util.PSQLException: Connection to :7432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
  3. 0

    Use Postgres passwords from .pgpass

    GitHub | 4 years ago | chris-martin
    org.postgresql.util.PSQLException: FATAL: password authentication failed for user "username"
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    FATAL: ShmemIndex entry size is wrong for data structure "XLOG Ctl"

    GitHub | 2 years ago | kasheylm
    org.postgresql.util.PSQLException: FATAL: ShmemIndex entry size is wrong for data structure "XLOG Ctl": expected 273304, actual 4209304
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    Problem connecting to a Postgresql Database under Google GWT when APP Engine enabled

    Google Groups | 7 years ago | RSN
    org.postgresql.util.PSQLException: Your security policy has prevented the connection from being attempted. You probably need to grant the connect java.net.SocketPermission to the database server host and port that you wish to connect to.

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Root Cause Analysis

  1. org.postgresql.util.PSQLException

    Connection to :7432 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()
  2. PostgreSQL JDBC Driver
    Driver.connect
    1. org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:247)
    2. org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:65)
    3. org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:149)
    4. org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:35)
    5. org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(AbstractJdbc3gConnection.java:22)
    6. org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(AbstractJdbc4Connection.java:47)
    7. org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.java:30)
    8. org.postgresql.Driver.makeConnection(Driver.java:414)
    9. org.postgresql.Driver.connect(Driver.java:282)
    9 frames
  3. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:664)
    2. java.sql.DriverManager.getConnection(DriverManager.java:208)
    2 frames