com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago.

  1. 0

    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

    Stack Overflow | 4 months ago | Anıl Şenocak
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago.
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    How to connect MYSQL database From a Admin system using Eclipse Juno?

    Stack Overflow | 3 years ago | TDJSS
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  3. 0

    Setting up Eclipse with Mysql

    linuxforums.org | 1 year ago
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
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  5. 0

    Configuring mysql database in eclipse

    Stack Overflow | 1 year ago | manik
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 1,446,230,292,928 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
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    编译Druid 0.2.6出错(windows 2003 server 32bit, JDK1.6.0_29-b11,)

    GitHub | 3 years ago | kemp-john
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

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Root Cause Analysis

  1. java.net.ConnectException

    Connection refused: connect

    at java.net.DualStackPlainSocketImpl.connect0()
  2. Java RT
    Socket.<init>
    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)
    9. java.net.Socket.connect(Socket.java:538)
    10. java.net.Socket.<init>(Socket.java:434)
    11. java.net.Socket.<init>(Socket.java:244)
    11 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:168)
    2. com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:262)
    3. com.mysql.jdbc.Connection.createNewIO(Connection.java:1926)
    4. com.mysql.jdbc.Connection.<init>(Connection.java:716)
    5. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
    5 frames
  4. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    4 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:353)
    2. com.mysql.jdbc.Connection.getInstance(Connection.java:295)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
    3 frames
  6. BIRT
    JDBCConnection.open
    1. org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.createConnection(JDBCConnection.java:328)
    2. org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:105)
    3. org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:54)
    4. org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:96)
    4 frames
  7. org.eclipse.datatools.enablement.mysql_1.0.4.v201212120617.jar
    JDBCMySQLConnectionFactory.createConnection
    1. org.eclipse.datatools.enablement.internal.mysql.connection.JDBCMySQLConnectionFactory.createConnection(JDBCMySQLConnectionFactory.java:28)
    1 frame
  8. BIRT
    ConnectionProfile.createConnection
    1. org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
    2. org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359)
    2 frames
  9. org.eclipse.datatools
    PingJob.run
    1. org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
    2. org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
    2 frames
  10. Eclipse Jobs
    Worker.run
    1. org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
    1 frame