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.
  3. 0

    connection refused in centOS with postgresql

    Stack Overflow | 4 years ago | Michał
    org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
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    My SQL queries in JSP won't work on server environments

    Stack Overflow | 1 year ago | Hans
    org.postgresql.util.PSQLException: Connection to postgres.ctmidyquyj6t.eu-central-1.rds.amazonaws.com:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
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    ru.yandex.qatools.embed.postgresql.TestPostgresStarter.java fails

    GitHub | 2 years ago | harishkannarao
    org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

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Root Cause Analysis

  1. java.net.ConnectException

    Connection timed out: connect

    at java.net.DualStackPlainSocketImpl.connect0()
  2. Java RT
    Socket.connect
    1. java.net.DualStackPlainSocketImpl.connect0(Native Method)
    2. java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    3. java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    4. java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    5. java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    6. java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    7. java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    8. java.net.Socket.connect(Socket.java:589)
    8 frames
  3. PostgreSQL JDBC Driver
    Driver.connect
    1. org.postgresql.core.PGStream.<init>(PGStream.java:61)
    2. org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:129)
    3. org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:65)
    4. org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:149)
    5. org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:35)
    6. org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(AbstractJdbc3gConnection.java:22)
    7. org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(AbstractJdbc4Connection.java:47)
    8. org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.java:30)
    9. org.postgresql.Driver.makeConnection(Driver.java:414)
    10. org.postgresql.Driver.connect(Driver.java:282)
    10 frames
  4. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:664)
    2. java.sql.DriverManager.getConnection(DriverManager.java:208)
    2 frames
  5. org.apache.spark
    ResolvedDataSource$.apply
    1. org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$$anonfun$getConnector$1.apply(JDBCRDD.scala:188)
    2. org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$$anonfun$getConnector$1.apply(JDBCRDD.scala:181)
    3. org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:121)
    4. org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation.<init>(JDBCRelation.scala:91)
    5. org.apache.spark.sql.execution.datasources.jdbc.DefaultSource.createRelation(DefaultSource.scala:60)
    6. org.apache.spark.sql.execution.datasources.ResolvedDataSource$.apply(ResolvedDataSource.scala:158)
    6 frames
  6. Spark Project SQL
    DataFrameReader.load
    1. org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:119)
    1 frame
  7. local_project.hawqload_0_1
    HawqLoad.main
    1. local_project.hawqload_0_1.HawqLoad.tJDBCInput_1Process(HawqLoad.java:1489)
    2. local_project.hawqload_0_1.HawqLoad.run(HawqLoad.java:1950)
    3. local_project.hawqload_0_1.HawqLoad.runJobInTOS(HawqLoad.java:1754)
    4. local_project.hawqload_0_1.HawqLoad.main(HawqLoad.java:1641)
    4 frames