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

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Check if your server (or a proxy server) is not going up and down. There might be something between a proxy and a client sending intermittent requests to non-functioning hosts as well. There might as well be too many requests in a short amount of time.

,
Expert tip

Check if your server (or a proxy server) is not going up and down. There might be something between a proxy and a client sending intermittent requests to non-functioning hosts as well. There might as well be too many requests in a short amount of time.

Solutions on the web

via Oracle Community by Shaik, 1 year ago
IO Error: The Network Adapter could not establish the connection
via Oracle Community by mbobak, 10 months ago
via Oracle Community by Twila Chavez-Oracle, 1 year ago
via marc.info by Unknown author, 1 year ago
IO Error: The Network Adapter could not establish the connection
via Oracle Community by 950521, 1 year ago
IO Error: The Network Adapter could not establish the connection
via Stack Overflow by user976230
, 1 year ago
IO-fout: The Network Adapter could not establish the connection
java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at oracle.net.nt.MetricsEnabledSocket.connect(TcpNTAdapter.java:631)
at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:164)
at oracle.net.nt.ConnOption.connect(ConnOption.java:137)
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:374)
at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:438)
at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:731)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:368)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1222)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:330)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:678)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:238)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:567)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at oracle.apps.ad.worker.AdJavaWorker.getAppsConnection(AdJavaWorker.java:1050)
at oracle.apps.ad.worker.AdJavaWorker.main(AdJavaWorker.java:278)

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