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Samebug tips

  1. ,
    via ibm.com by Unknown author

    Adjust the timeout barrier so that its more flexible on network delays. It is very important to consider doing that especially when your server application will run in a remote machine. Other than that, avoid whatever causes delays in network.

  2. ,
    via javacodegeeks.com by Unknown author

    This exception emerges when a blocking operation of the two, an accept or a read, is blocked for a certain amount of time, called the timeout.

Solutions on the web

via Oracle Community by 3259248, 1 year ago
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.
via Stack Overflow by Noam
, 2 years ago
Communications link failure The last packet successfully received from the server was 654,699 milliseconds ago. The last packet sent successfully to the server was 17 milliseconds ago.
via Stack Overflow by Leo
, 2 years ago
Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago.
via asquestion.com by Unknown author, 2 years ago
Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago.
via dolinked.com by Unknown author, 2 years ago
Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago.
via Spring JIRA by Tanya Koganov, 1 year ago
Commu nications link failure The last packet successfully received from the server was 1,257,606 milliseconds ago. The last packet sent successfully to t he server was 1,257,607 milliseconds ago.
java.net.SocketTimeoutException: Read timed out	at java.net.SocketInputStream.socketRead0(Native Method)	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)	at java.net.SocketInputStream.read(SocketInputStream.java:170)	at java.net.SocketInputStream.read(SocketInputStream.java:141)	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:100)	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:143)	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:173)	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2954)	at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:560)	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1014)	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2255)	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)	at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:795)	at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:44)	at sun.reflect.GeneratedConstructorAccessor41.newInstance(Unknown Source)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)	at java.sql.DriverManager.getConnection(DriverManager.java:664)	at java.sql.DriverManager.getConnection(DriverManager.java:208)	at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:153)	at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:144)	at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:155)	at org.springframework.jdbc.datasource.SingleConnectionDataSource.initConnection(SingleConnectionDataSource.java:224)	at com.mysql.etools.agent.collection.JdbcConnector$1.getDataSource(JdbcConnector.java:210)	at com.mysql.etools.agent.collection.JdbcConnector.initDataSourceCall(JdbcConnector.java:388)	at com.mysql.etools.agent.collection.JdbcConnector.access$300(JdbcConnector.java:52)	at com.mysql.etools.agent.collection.JdbcConnector$3.execute(JdbcConnector.java:303)	at com.mysql.etools.agent.collection.JdbcConnector$3.execute(JdbcConnector.java:300)	at com.mysql.etools.agent.collection.PrivilegeFallback.attempt(PrivilegeFallback.java:35)	at com.mysql.etools.agent.collection.JdbcConnector.initDataSource(JdbcConnector.java:307)	at com.mysql.etools.agent.collection.JdbcConnector.(JdbcConnector.java:286)	at com.mysql.etools.agent.collection.JdbcConnector.(JdbcConnector.java:264)	at com.mysql.etools.agent.collection.JdbcConnector.(JdbcConnector.java:256)	at com.mysql.etools.agent.collection.MysqlConnection.pingCall(MysqlConnection.java:1432)	at com.mysql.etools.agent.collection.MysqlConnection.access$3900(MysqlConnection.java:79)	at com.mysql.etools.agent.collection.MysqlConnection$7.call(MysqlConnection.java:1394)	at com.mysql.etools.agent.collection.MysqlConnection$7.call(MysqlConnection.java:1390)	at com.mysql.etools.limits.RateLimit.doWithRateLimit(RateLimit.java:222)	at com.mysql.etools.agent.collection.MysqlConnectionRateLimit.doWithRateLimit(MysqlConnectionRateLimit.java:81)	at com.mysql.etools.agent.collection.MysqlConnectionRateLimit.doWithRateLimitCore(MysqlConnectionRateLimit.java:62)	at com.mysql.etools.agent.collection.MysqlConnection.ping(MysqlConnection.java:1390)	at com.mysql.etools.agent.collection.mysql.ConnectionStats.ping(MysqlAvailabilityCollector.java:204)	at com.mysql.etools.agent.collection.mysql.MysqlAvailabilityCollector$1.run(MysqlAvailabilityCollector.java:102)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)