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Anonymous
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MYSQL - Communications link failure

Hello
I have a issue a with talend V5.6RC and a connexion to a MySQL database:
Echec de la connexion Vous devez modifier les paramètres de la base de données.
  java.lang.RuntimeException: 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 org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:164)
      at org.talend.core.model.metadata.builder.database.ExtractMetaDataUtils.connect(ExtractMetaDataUtils.java:1049)
      at org.talend.core.model.metadata.builder.database.ExtractMetaDataFromDataBase.testConnection(ExtractMetaDataFromDataBase.java:301)       at org.talend.repository.ui.utils.Mana

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6 Replies
Anonymous
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Author

Hi,
Echec de la connexion Vous devez modifier les paramètres de la base de données.
  java.lang.RuntimeException: 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.

For your issue, please see a related resolved forum: https://community.talend.com/t5/Design-and-Development/resolved-Connection-failure-on-mysqlinput/td-...
Best regards
Sabrina
Anonymous
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Author

"this topic and so far there is no real solution. It is not a problem from Talend, it is a problem of the recent release of the JDBC driver for MySQL."
resolved ???
I don't understand
thanks for your help
Didier
Anonymous
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Author

Anonymous
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Author

I have checked many subjet like firewall or timeout parameter without success
Any good ideas will be welcome.
Didier
Anonymous
Not applicable
Author

Hi,
Did this issue also repro on your Talend 5.5.1 studio?
Best regards
Sabrina
Anonymous
Not applicable
Author

I had the same problem working with talend DI versions 5.3 to 5.6 (constantly updated), on a corporative proxy enabled network and a WIN7 PC.
 
Finally worked out by disabling the proxy (I did it from the windows registry. -a little extreme, I know, but i was desperate :lol 0683p000009MACn.png before execute TOS-DI. 
Good luck.
PD: Edited: It seems TOS-DI is unable to work properly on a proxy enabled network. Hoping get solved soon on further releases.