java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 252 milliseconds ago. The last packet sent successfully to the server was 3,582,723 milliseconds ago.

GitHub | TheWildHorse | 4 months ago
  1. 0

    GitHub comment 868#239445250

    GitHub | 4 months ago | TheWildHorse
    java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 252 milliseconds ago. The last packet sent successfully to the server was 3,582,723 milliseconds ago.
  2. 0

    MySQL reconnect issue

    GitHub | 4 years ago | SelbieNL
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 46,012,347 milliseconds ago. The last packet sent successfully to the server was 46,012,348 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
  3. 0

    Strange things ;p

    GitHub | 4 years ago | freakyy85
    com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 39,695,385 milliseconds ago. The last packet sent successfully to the server was 39,695,385 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
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  5. 0

    BlockPistonRetractEvent

    GitHub | 4 years ago | squiby
    org.bukkit.event.EventException
  6. 0

    Database connection drop error message in the console.

    GitHub | 4 years ago | cartman-2000
    com.griefcraft.scripting.ModuleException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 62,656,333 milliseconds ago. The last packet sent successfully to the server was 62,656,333 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.

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Root Cause Analysis

  1. java.net.SocketException

    Broken pipe

    at java.net.SocketOutputStream.socketWrite0()
  2. Java RT
    BufferedOutputStream.flush
    1. java.net.SocketOutputStream.socketWrite0(Native Method)[?:1.8.0_101]
    2. java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)[?:1.8.0_101]
    3. java.net.SocketOutputStream.write(SocketOutputStream.java:153)[?:1.8.0_101]
    4. java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)[?:1.8.0_101]
    5. java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)[?:1.8.0_101]
    5 frames
  3. MySQL jdbc
    ResultSetImpl.close
    1. com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3634)[mysql-connector-java-5.1.38.jar:5.1.38]
    2. com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2460)[mysql-connector-java-5.1.38.jar:5.1.38]
    3. com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2625)[mysql-connector-java-5.1.38.jar:5.1.38]
    4. com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2547)[mysql-connector-java-5.1.38.jar:5.1.38]
    5. com.mysql.jdbc.StatementImpl.executeSimpleNonQuery(StatementImpl.java:1454)[mysql-connector-java-5.1.38.jar:5.1.38]
    6. com.mysql.jdbc.RowDataDynamic.close(RowDataDynamic.java:178)[mysql-connector-java-5.1.38.jar:5.1.38]
    7. com.mysql.jdbc.ResultSetImpl.realClose(ResultSetImpl.java:6709)[mysql-connector-java-5.1.38.jar:5.1.38]
    8. com.mysql.jdbc.ResultSetImpl.close(ResultSetImpl.java:851)[mysql-connector-java-5.1.38.jar:5.1.38]
    8 frames
  4. org.xbib.elasticsearch
    StandardSource.execute
    1. org.xbib.elasticsearch.jdbc.strategy.standard.StandardSource.close(StandardSource.java:1130)[elasticsearch-jdbc-2.3.4.0.jar:?]
    2. org.xbib.elasticsearch.jdbc.strategy.standard.StandardSource.execute(StandardSource.java:701)[elasticsearch-jdbc-2.3.4.0.jar:?]
    2 frames