Unable to start CAS 6.1

[Andrea Colajacomo]

Hello guys,

we are facing a strange issue.

We have cas running on GCP 

After starting our instance we can see this error in the logs

2022-10-14 10:56:39,178 INFO [org.apereo.cas.configuration.DefaultCasConfigurationPropertiesSourceLocator] - <Configuration files found at [/etc/cas/config] are [[file [/etc/cas/config/cas.properties]]] under profile(s) [[standalone]]>
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
2022-10-14 10:57:05,008 WARN [com.zaxxer.hikari.util.DriverDataSource] - <Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.>
2022-10-14 10:57:05,687 ERROR [com.zaxxer.hikari.pool.HikariPool] - <HikariPool-1 - Exception during pool initialization.>
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.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.18.jar!/:8.0.18]
        at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:562) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.1.jar!/:?]
        at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.1.jar!/:?]
        at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.9.Final.jar!/:5.4.9.Final]

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If we push the previous build it works fine, but nothing has been changed in the cas configuration, nothing on DB side. The only change contained in the new build is something related to the frontend.

We test also network connection and it is fine.

Does anyone have any kind of suggestion ?

Bye

[Krishna Prasad]

Hi Andera,

Please try to reproduce with simple jdbc program if possible. This mostly because of driver url format and driver version of it.

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[Andrea Colajacomo]

Hi Krishna,

finally we found problem, it was regarding tls protocol to use. Forcing use of 1.2 works.

Thanks

Bye