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.

Icesoft | stellans | 7 years ago
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    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai                                                                             lure The last packet successfully received from the server was 485,972 milliseconds a                                                                             go.  The last packet sent successfully to the server was 37 milliseconds ago.
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    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai                                                                             lure The last packet successfully received from the server was 485,972 milliseconds a                                                                             go.  The last packet sent successfully to the server was 37 milliseconds ago.

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Root Cause Analysis

  1. 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()
  2. Java RT
    NativeConstructorAccessorImpl.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    2 frames