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.

Oracle Community | 3259248 | 4 months ago
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    MEM Server Unavailable Error Message

    Oracle Community | 4 months ago | 3259248
    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.sun.jersey.api.client.ClientHandlerException: java.net.SocketTimeoutException: Read timed out
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    java.net.SocketTimeoutException: Read timed out
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Root Cause Analysis

  1. java.net.SocketTimeoutException

    Read timed out

    at java.net.SocketInputStream.socketRead0()
  2. Java RT
    SocketInputStream.read
    1. java.net.SocketInputStream.socketRead0(Native Method)
    2. java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    3. java.net.SocketInputStream.read(SocketInputStream.java:170)
    4. java.net.SocketInputStream.read(SocketInputStream.java:141)
    4 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:100)
    2. com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:143)
    3. com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:173)
    4. com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2954)
    5. com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:560)
    6. com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1014)
    7. com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2255)
    8. com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)
    9. com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)
    10. com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)
    11. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
    11 frames
  4. Java RT
    Constructor.newInstance
    1. sun.reflect.GeneratedConstructorAccessor41.newInstance(Unknown Source)
    2. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    3. java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    3 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
    2. com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)
    3 frames
  6. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:664)
    2. java.sql.DriverManager.getConnection(DriverManager.java:208)
    2 frames
  7. Spring Framework
    SingleConnectionDataSource.initConnection
    1. org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:153)
    2. org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:144)
    3. org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:155)
    4. org.springframework.jdbc.datasource.SingleConnectionDataSource.initConnection(SingleConnectionDataSource.java:224)
    4 frames
  8. com.mysql.etools
    MysqlAvailabilityCollector$1.run
    1. com.mysql.etools.agent.collection.JdbcConnector$1.getDataSource(JdbcConnector.java:210)
    2. com.mysql.etools.agent.collection.JdbcConnector.initDataSourceCall(JdbcConnector.java:388)
    3. com.mysql.etools.agent.collection.JdbcConnector.access$300(JdbcConnector.java:52)
    4. com.mysql.etools.agent.collection.JdbcConnector$3.execute(JdbcConnector.java:303)
    5. com.mysql.etools.agent.collection.JdbcConnector$3.execute(JdbcConnector.java:300)
    6. com.mysql.etools.agent.collection.PrivilegeFallback.attempt(PrivilegeFallback.java:35)
    7. com.mysql.etools.agent.collection.JdbcConnector.initDataSource(JdbcConnector.java:307)
    8. com.mysql.etools.agent.collection.JdbcConnector.<init>(JdbcConnector.java:286)
    9. com.mysql.etools.agent.collection.JdbcConnector.<init>(JdbcConnector.java:264)
    10. com.mysql.etools.agent.collection.JdbcConnector.<init>(JdbcConnector.java:256)
    11. com.mysql.etools.agent.collection.MysqlConnection.pingCall(MysqlConnection.java:1432)
    12. com.mysql.etools.agent.collection.MysqlConnection.access$3900(MysqlConnection.java:79)
    13. com.mysql.etools.agent.collection.MysqlConnection$7.call(MysqlConnection.java:1394)
    14. com.mysql.etools.agent.collection.MysqlConnection$7.call(MysqlConnection.java:1390)
    15. com.mysql.etools.limits.RateLimit.doWithRateLimit(RateLimit.java:222)
    16. com.mysql.etools.agent.collection.MysqlConnectionRateLimit.doWithRateLimit(MysqlConnectionRateLimit.java:81)
    17. com.mysql.etools.agent.collection.MysqlConnectionRateLimit.doWithRateLimitCore(MysqlConnectionRateLimit.java:62)
    18. com.mysql.etools.agent.collection.MysqlConnection.ping(MysqlConnection.java:1390)
    19. com.mysql.etools.agent.collection.mysql.ConnectionStats.ping(MysqlAvailabilityCollector.java:204)
    20. com.mysql.etools.agent.collection.mysql.MysqlAvailabilityCollector$1.run(MysqlAvailabilityCollector.java:102)
    20 frames
  9. Java RT
    Thread.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2. java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
    3. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    4. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    5. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    6. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    7. java.lang.Thread.run(Thread.java:745)
    7 frames