Mysql 谷歌云中的实例 - 通信链路故障

Question

I am getting the following error while connecting to the MySql instance in google cloud.

The connection to the database is over a private IP.

The same setup is working on a normal co-located server.

I am able to use the mysql client to connect to the database over the private IP.

The application being deployed is a Spring based application.

2020-07-30 09:31:03,369 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (JCA PoolFiller) IJ000610: Unable to fill pool: java:jboss/datasources/ACADEMY: javax.resource.ResourceException: IJ031084: Unable to create connection at org.jboss.ironjacamar.jdbcadapters@1.4.22.Final//org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:345) at org.jboss.ironjacamar.jdbcadapters@1.4.22.Final//org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:352) at org.jboss.ironjacamar.jdbcadapters@1.4.22.Final//org.Z9764DC122B E894C72F6314703587F596Z.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:287) at org.jboss.ironjacamar.impl@1.4.22.Final//org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.createConnectionEventListener(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1322) at org.jboss.ironjacamar.impl@1.4.22.Final//org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.fillTo(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1142) at org.jboss.ironjacamar.impl@1.4.22.Final//org.jboss.jca.core.connectionmanager.pool.mcp.PoolFiller.run(PoolFiller.Z 93F725A07423FE1C889F448B33D21F46Z:97) at java.base/java.lang.Thread.run(Thread.java:844) Caused by: com.mysql.cj.jdbc.exceptions.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 com.mysql@8.0.20//com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql@8.0.20//com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql@8.0.20//com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) at com.mysql@8.0.20//com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456) at com.mysql@8.0.20//com.mysql.cj.Z84BEFFD3A0D49636A58CE6080C AA87C7Z.ConnectionImpl.getInstance(ConnectionImpl.java:246) at com.mysql@8.0.20//com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) at org.jboss.ironjacamar.jdbcadapters@1.4.22.Final//org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:321)... 6 more Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

Answer 1

You need to use the JDBC socket factory . You also need to enable Cloud SQL Admin API in the project, and install / authenticate the Cloud SDK before using the socket factory. Follow the instruction in the link above to add the library as a dependency and to create a JDBC URL