org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Io exception: Unknown host specified )

Oracle Community | 843859 | 10 years ago
  1. 0

    Intermittent SQL Connection problem - Unknown Host

    Oracle Community | 10 years ago | 843859
    org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Io exception: Unknown host specified )
  2. 0

    Cannot connect to Oracle 12c from Tomcat 6: no matching authentication protocol (ORA-28040)

    Stack Overflow | 3 years ago | Alberto
    org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (ORA-28040: No matching authentication protocol )
  3. 0

    java.sql.SQLException: Io exception: Unknown host specified

    Coderanch | 7 years ago | Ajit Sawant
    java.sql.SQLException: Io exception: Unknown host specified
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    Not able to load OracleDriver class in simple java class

    Stack Overflow | 4 years ago | Krsna Chaitanya
    java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
  6. 0

    Rundeck setup with Oracle

    Google Groups | 4 years ago | Vinayak
    java.sql.SQLException: Io exception: The Network Adapter could not establish the connection

  1. Michael 1 times, last 4 months ago
  2. Jeremy 1 times, last 4 months ago
  3. qavid 2 times, last 5 months ago
  4. Kawada 4 times, last 6 months ago
45 unregistered visitors
Not finding the right solution?
Take a tour to get the most out of Samebug.

Tired of useless tips?

Automated exception search integrated into your IDE

Root Cause Analysis

  1. java.sql.SQLException

    Io exception: Unknown host specified

    at oracle.jdbc.driver.DatabaseError.throwSqlException()
  2. Oracle jdbc
    OracleDriver.connect
    1. oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
    2. oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
    3. oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
    4. oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
    5. oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:420)
    6. oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
    7. oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
    8. oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
    8 frames
  3. org.apache.tomcat
    BasicDataSource.getConnection
    1. org.apache.tomcat.dbcp.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:37)
    2. org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:290)
    3. org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:877)
    4. org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:851)
    5. org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
    5 frames
  4. uk.ac.hefce
    LoginAction.execute
    1. uk.ac.hefce.sql.QueryUtil.getConnection(QueryUtil.java:51)
    2. uk.ac.hefce.cms.actions.HefceObjUtil.getConnection(HefceObjUtil.java:46)
    3. uk.ac.hefce.cms.actions.InitialiseAction.execute(InitialiseAction.java:36)
    4. uk.ac.hefce.cms.actions.LoginAction.execute(LoginAction.java:29)
    4 frames
  5. Struts Core
    ActionCommandBase.execute
    1. org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:53)
    2. org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:64)
    3. org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
    3 frames
  6. Commons Chain
    ChainBase.execute
    1. org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
    2. org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
    3. org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
    3 frames
  7. Struts Core
    ComposableRequestProcessor.process
    1. org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
    1 frame
  8. struts
    ActionServlet.doPost
    1. org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
    2. org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:459)
    2 frames
  9. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
    2. javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    2 frames
  10. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    5. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    6. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    7. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    8. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    8 frames
  11. Embedded GlassFish Web
    ChannelSocket$SocketConnection.runIt
    1. org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
    2. org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
    3. org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
    4. org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
    5. org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
    5 frames
  12. Tomcat Util
    ThreadPool$ControlRunnable.run
    1. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    1 frame
  13. Java RT
    Thread.run
    1. java.lang.Thread.run(Unknown Source)
    1 frame