com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 2016-04-28 17:15:29,901 INFO 27504 [luigi-interface] hadoop.py:234 - The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

Google Groups | Unknown author | 1 year ago
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    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 2016-04-28 17:15:29,901 INFO 27504 [luigi-interface] hadoop.py:234 - 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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    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failu re 2016-06-03 17:28:55,086 INFO 32365 [luigi-interface] hadoop.py:234 - The last packet sent successfully to the s erver was 0 milliseconds ago. The driver has not received any packets from the server. 2016-06-03 17:28:55,087 INFO 32365 [luigi-interface] hadoop.py:234 - com.mysql.jdbc.exceptions.jdbc4.Communicat ionsException: Communications link failure 2016-06-03 17:28:55,087 INFO 32365 [luigi-interface] hadoop.py:234 - The last packet sent successfully to the s erver was 0 milliseconds ago. The driver has not received any packets from the server.
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    netbeans.org | 2 years 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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    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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    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

    GitHub | 2 years ago | pashtika
    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. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

    Communications link failure 2016-04-28 17:15:29,901 INFO 27504 [luigi-interface] hadoop.py:234 - 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()
  2. 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:422)
    4 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    2. com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1129)
    3. com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:358)
    4. com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2498)
    5. com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2535)
    6. com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2320)
    7. com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
    8. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
    8 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:422)
    4 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    2. com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347)
    3 frames
  6. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:664)
    2. java.sql.DriverManager.getConnection(DriverManager.java:247)
    2 frames
  7. org.apache.sqoop
    Sqoop.run
    1. org.apache.sqoop.manager.SqlManager.makeConnection(SqlManager.java:885)
    2. org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)
    3. org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:744)
    4. org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:767)
    5. org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:270)
    6. org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:241)
    7. org.apache.sqoop.manager.SqlManager.getColumnTypes(SqlManager.java:227)
    8. org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:295)
    9. org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1833)
    10. org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1645)
    11. org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107)
    12. org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:478)
    13. org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
    14. org.apache.sqoop.Sqoop.run(Sqoop.java:143)
    14 frames
  8. Hadoop
    ToolRunner.run
    1. org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    1 frame
  9. org.apache.sqoop
    Sqoop.main
    1. org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179)
    2. org.apache.sqoop.Sqoop.runTool(Sqoop.java:218)
    3. org.apache.sqoop.Sqoop.runTool(Sqoop.java:227)
    4. org.apache.sqoop.Sqoop.main(Sqoop.java:236)
    4 frames