I am getting below error and unable to understand anything. Can anyone help?
Starting job WF_Count_New at 12:52 12/06/2017. [statistics] connecting to socket on port 3764 [statistics] connected Exception in component tMysqlInput_1 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 56 milliseconds ago. The last packet sent successfully to the server was 3,704,051 milliseconds ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1127) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3715) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3604) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4155) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:926) at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:2051) [statistics] disconnected at com.mysql.jdbc.RowDataDynamic.nextRecord(RowDataDynamic.java:408) at com.mysql.jdbc.RowDataDynamic.next(RowDataDynamic.java:387) at com.mysql.jdbc.RowDataDynamic.close(RowDataDynamic.java:165) at com.mysql.jdbc.ResultSetImpl.realClose(ResultSetImpl.java:7471) at com.mysql.jdbc.ResultSetImpl.close(ResultSetImpl.java:918) at local_project.WF_count_new_0_1.WF_Count_New.tMysqlInput_1Process(WF_Count_New.java:4085) at local_project.WF_count_new_0_1.WF_Count_New.runJobInTOS(WF_Count_New.java:7279) at local_project.WF_count_new_0_1.WF_Count_New.main(WF_Count_New.java:7136) Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost. at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3161) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3615) ... 12 more
How do i fix this? I got this multiple times and even restarted the server where i am using it. The server even has 61GB RAM
Looks like the network link between the Talend process and the Mysql database failed.
Are you using a database connection component? Could it be that you close the connection (name) from another (sub)process. For example after an itteration and commit (and close connection)?
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