java.sql.SQLException: IO Error: The Network Adapter could not establish the connection

atlassian.com | 3 months ago
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    java.sql.SQLException: IO Error: The Network Adapter could not establish the connection
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    Unable to connect to Oracle database when starting - Atlassian Documentation

    atlassian.com | 3 months ago
    java.sql.SQLException: IO Error: The Network Adapter could not establish the connection
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    java.sql.SQLException: I/O-Fehler: The Network Adapter could not establish the connection
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    java.sql.SQLException: The Network Adapter could not establish the connection
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    jdbc connection through client machine

    Oracle Community | 3 years ago | 8a639176-49ef-4646-8606-468629945998
    java.sql.SQLException: The Network Adapter could not establish the connection

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Root Cause Analysis

  1. java.net.ConnectException

    Connection timed out: 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
    OracleDriver.connect
    1. oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:201)
    2. oracle.net.nt.ConnOption.connect(ConnOption.java:123)
    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:678)
    6. oracle.net.ns.NSProtocol.connect(NSProtocol.java:238)
    7. oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1054)
    8. oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308)
    9. oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:536)
    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)
    12 frames
  4. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:582)
    2. java.sql.DriverManager.getConnection(DriverManager.java:185)
    2 frames
  5. BoneCP :: Core Library
    PoolWatchThread.run
    1. com.jolbox.bonecp.BoneCP.obtainRawInternalConnection(BoneCP.java:256)
    2. com.jolbox.bonecp.ConnectionHandle.obtainInternalConnection(ConnectionHandle.java:211)
    3. com.jolbox.bonecp.ConnectionHandle.<init>(ConnectionHandle.java:170)
    4. com.jolbox.bonecp.PoolWatchThread.fillConnections(PoolWatchThread.java:101)
    5. com.jolbox.bonecp.PoolWatchThread.run(PoolWatchThread.java:82)
    5 frames
  6. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    3. java.lang.Thread.run(Thread.java:619)
    3 frames