java.sql.SQLRecoverableException: IO 错误: The Network Adapter could not establish the connection

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    itpub.net | 3 months ago
    java.sql.SQLRecoverableException: IO 错误: The Network Adapter could not establish the connection
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    Stack Overflow | 5 years ago | Foo who went to a bar.
    java.net.ConnectException: Connection refused: connect
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Root Cause Analysis

  1. java.net.ConnectException

    Connection refused: connect

    at java.net.PlainSocketImpl.socketConnect()
  2. Java RT
    Socket.connect
    1. java.net.PlainSocketImpl.socketConnect(Native Method)
    2. java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    3. java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    4. java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    5. java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    6. java.net.Socket.connect(Socket.java:529)
    6 frames
  3. Oracle jdbc
    OracleDataSource.getConnection
    1. oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:150)
    2. oracle.net.nt.ConnOption.connect(ConnOption.java:130)
    3. oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:353)
    4. oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:422)
    5. oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:686)
    6. oracle.net.ns.NSProtocol.connect(NSProtocol.java:246)
    7. oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1056)
    8. oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308)
    9. oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:538)
    10. oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:228)
    11. oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
    12. oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
    13. oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:280)
    14. oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:207)
    15. oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:157)
    15 frames
  4. oracle.sysman.omsca
    OMSConfigAssistantDriver.main
    1. oracle.sysman.omsca.util.CoreOMSConfigAssistantUtil.checkRepository(CoreOMSConfigAssistantUtil.java:2353)
    2. oracle.sysman.omsca.framework.OMSGenericAdapter.doPreRequisiteChecks(OMSGenericAdapter.java:189)
    3. oracle.sysman.omsca.framework.OMSCAFreshInstall.execute(OMSCAFreshInstall.java:90)
    4. oracle.sysman.omsca.framework.OMSConfigAssistantDriver.main(OMSConfigAssistantDriver.java:210)
    4 frames