![]() Disable firewall and/or configure firewall/proxy to allow/forward the port.Restart the DB and fix your code accordingly that it closes connections in finally.Verify if mysqld is started without the -skip-networking option. ⢠Refresh DNS or use IP address in JDBC URL instead. Im trying to connect my MySQL database (that I got from OVH) with PhpStorm, but I continuously got the same error: Connection to failed. 10:55:24 AM .spi.SqlExceptionHelper logExceptions WARN: SQL Error: 0, SQLState: 08S01 10:55:24 AM .spi.SqlExceptionHelper logExceptions ERROR: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago.To solve the one or the other, follow the following advices: Something in between Java and DB is blocking connections, e.g.DB server doesn't accept TCP/IP connections.Port number is missing or wrong in JDBC URL.No appropriate protocol (protocol is disabled or cipher suites are inappropriate). The driver has not received any packets from the server. 08S01 Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. Hostname in JDBC URL is not recognized by local DNS server. So I tried to connect MySQL via SSH Tunnel option on Datagrip, however, It cannot connect to server.Im wondering if somebody else can try doing the same thing with their own machine and mysql-connector-java-5.1.10-bin. I still cant connect if I change 127.0.0.1 to localhost. IP address or hostname in JDBC URL is wrong. I can connect directly using mysql client and my username jsptest.This can have one or more of the following causes: If you get an SQLException: Connection refused or Connection timed out or a MySQL specific CommunicationsException: Communications link failure, then it means that the DB isn't reachable at all. I'm quoting from this answer which also contains a step-by-step MySQL+JDBC tutorial: newInstance0 ( Native Method ).Ĭom.4.CommunicationsException: Communications link failure CommunicationsException : Communications link failureĪt sun. createCommunicationsException ( SQLError. newInstance ( DelegatingConstructorAccessorImpl. newInstance ( NativeConstructorAccessorImpl. sql-server ssms datagrip Share Improve this question Follow. The last packet sent successfully to the server was 0 milliseconds ago. Legal Privacy(Error 121) Communication link failure SQLSTATE 08S01. CommunicationsException : Communications link failure I'm getting a rather stupendous error: Exception in thread "main" com. ![]() I'm working on getting my database to talk to my Java programs.Ĭan someone give me a quick and dirty sample program using the JDBC?Ĭontents of the test file: import com.
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