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 | 3 months ago
  1. 0

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

    talendforge.org | 3 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 | 3 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.
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    Error while creating connection pool "FATA... | Oracle Community

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    org.postgresql.util.PSQLException: FATAL: database "null" does not exist
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    FATAL: ShmemIndex entry size is wrong for data structure "XLOG Ctl"

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    org.postgresql.util.PSQLException: FATAL: ShmemIndex entry size is wrong for data structure "XLOG Ctl": expected 273304, actual 4209304
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    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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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