Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Communications link failure #19

Closed
BenHall-1 opened this issue Mar 26, 2020 · 5 comments
Closed

Communications link failure #19

BenHall-1 opened this issue Mar 26, 2020 · 5 comments

Comments

@BenHall-1
Copy link
Contributor

Hey, currently getting this issue when I try to connect to my database...

com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: Communications link failure at com.zaxxer.hikari.pool.HikariPool.throwPoolInitializationException(HikariPool.java:589) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:575) at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:81) at pro.husk.mysql.MySQL.<init>(MySQL.java:68) at codes.benh.XXX.XXX.main(XXX.java:25) Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354) at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202) at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:554) ... 4 more Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:338) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:777) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:486) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:202) at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1340) at com.mysql.cj.NativeSession.connect(NativeSession.java:157) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) ... 12 more Caused by: javax.net.ssl.SSLHandshakeException: Remote host terminated the handshake at java.base/sun.security.ssl.SSLSocketImpl.handleEOF(SSLSocketImpl.java:1321) at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1160) at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1063) at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402) at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:336) at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:188) at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:329) ... 19 more Caused by: java.io.EOFException: SSL peer shut down incorrectly at java.base/sun.security.ssl.SSLSocketInputRecord.decodeInputRecord(SSLSocketInputRecord.java:239) at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:190) at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:108) at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152) ... 25 more

Initialising it with this:
sql = new MySQL("192.168.1.XXX", "3306", "XXX", "XXX", "XXX", "");

@Huskehhh
Copy link
Owner

Hey mate, communications link is usually due to being unable to connect to the database, are you sure it’s accessible? / running

@BenHall-1
Copy link
Contributor Author

Yeah seems to be, I can access it from MySQL workbench on the same PC... hmm I'll try a few things and see if it is user error

@Huskehhh
Copy link
Owner

How'd you go mate?

@BenHall-1
Copy link
Contributor Author

The credentials are correct as I can use them on SQL Workbench... not sure what else to try tbf

@BenHall-1
Copy link
Contributor Author

Nvm I fixed it, I forgot that I was running the MySQL server without an SSL Cert so I needed to use &useSSL=false

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants