Mysql error java.sql.SQLException: Communication failure during handshake.

Question

Hi !!!
I was working ok, with hibernate and mysql but yesterday I try to install the new mysql version (4.1.10) and receive the following error when I try to connect
Initializing Hibernate
INFO - Hibernate 2.1.6
INFO - hibernate.properties not found
INFO - using CGLIB reflection optimizer
INFO - configuring from resource: /hibernate.cfg.xml
INFO - Configuration resource: /hibernate.cfg.xml
INFO - Mapping resource: com/tutorial/hibernate/core/News.hbm.xml
INFO - Mapping class: com.tutorial.hibernate.core.News -> news
INFO - Configured SessionFactory: null
INFO - processing one-to-many association mappings
INFO - processing one-to-one association property references
INFO - processing foreign key constraints
INFO - Using dialect: net.sf.hibernate.dialect.MySQLDialect
INFO - Maximim outer join fetch depth: 2
INFO - Use outer join fetching: true
INFO - Using Hibernate built-in connection pool (not for production use!)
INFO - Hibernate connection pool size: 20
INFO - using driver: org.gjt.mm.mysql.Driver at URL: jdbc:mysql://localhost/unnobanews
INFO - connection properties: {user=news, password=news}
INFO - Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
INFO - No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
WARN - Could not obtain connection metadata
java.sql.SQLException: Communication failure during handshake. Is there a server running on localhost:3306?
at org.gjt.mm.mysql.MysqlIO.init(Unknown Source)
at org.gjt.mm.mysql.Connection.connectionInit(Unknown Source)
at org.gjt.mm.mysql.jdbc2.Connection.connectionInit(Unknown Source)
at org.gjt.mm.mysql.Driver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:140)
Somewhere I red that was necessary to update the jdbc driver, so I updated it from version nro 2 to version nro 3.1.7 but still the error
Phpmyadmin works ok and mysql control center can connect ok too.
But when I try a telnet localhost:3306 I receive and error of connection filed
Anyway the mysql status thowme correct information, that it working ok!
Any idea ?
King regards
Naty

Answer 1

Hibernate 2.1.6
loaded properties from resource hibernate.properties: {hibernate.connection.username=root, hibernate.connection.password="", hibernate.cglib.use_reflection_optimizer=true, hibernate.connection.pool_size=10, hibernate.dialect=net.sf.hibernate.dialect.MySQLDialect, hibernate.connection.url=jdbc:mysql://manoj/manoj, hibernate.connection.driver_class=org.gjt.mm.mysql.Driver}
using CGLIB reflection optimizer
configuring from resource: /hibernate.cfg.xml
Configuration resource: /hibernate.cfg.xml
Mapping resource: com/mec/emp.hbm.xml
Mapping class: com.mec.Employee -> emp
Configured SessionFactory: null
processing one-to-many association mappings
processing one-to-one association property references
processing foreign key constraints
Using dialect: net.sf.hibernate.dialect.MySQLDialect
Maximim outer join fetch depth: 2
Use outer join fetching: true
Using Hibernate built-in connection pool (not for production use!)
Hibernate connection pool size: 10
using driver: org.gjt.mm.mysql.Driver at URL: jdbc:mysql://manoj/manoj
connection properties: {user=root, password=""}
No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
Could not obtain connection metadata
java.sql.SQLException: Server configuration denies access to data source
     at org.gjt.mm.mysql.MysqlIO.init(MysqlIO.java:144)
     at org.gjt.mm.mysql.Connection.<init>(Connection.java:230)
     at org.gjt.mm.mysql.Driver.connect(Driver.java:126)
     at java.sql.DriverManager.getConnection(DriverManager.java:525)
     at java.sql.DriverManager.getConnection(DriverManager.java:140)
     at net.sf.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:101)
     at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:73)
     at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1155)
     at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:789)
     at com.mec.CreateSession.getCurrentSession(CreateSession.java:35)
     at com.mec.TestEmployee.createEmployee(TestEmployee.java:37)
     at com.mec.TestEmployee.main(TestEmployee.java:24)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)
Use scrollable result sets: false
Use JDBC3 getGeneratedKeys(): false
Optimize cache for minimal puts: false
Query language substitutions: {}
cache provider: net.sf.hibernate.cache.EhCacheProvider
instantiating and configuring caches
building session factory
Not binding factory to JNDI, no JNDI name configured
SQL Error: 0, SQLState: 08001
Server configuration denies access to data source
Cannot open connection
java.sql.SQLException: Server configuration denies access to data source
     at org.gjt.mm.mysql.MysqlIO.init(MysqlIO.java:144)
     at org.gjt.mm.mysql.Connection.<init>(Connection.java:230)
     at org.gjt.mm.mysql.Driver.connect(Driver.java:126)
     at java.sql.DriverManager.getConnection(DriverManager.java:525)
     at java.sql.DriverManager.getConnection(DriverManager.java:140)
     at net.sf.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:101)
     at net.sf.hibernate.impl.BatcherImpl.openConnection(BatcherImpl.java:286)
     at net.sf.hibernate.impl.SessionImpl.connect(SessionImpl.java:3326)
     at net.sf.hibernate.impl.SessionImpl.connection(SessionImpl.java:3286)
     at net.sf.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:40)
     at net.sf.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:19)
     at net.sf.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:2231)
     at com.mec.TestEmployee.createEmployee(TestEmployee.java:38)
     at com.mec.TestEmployee.main(TestEmployee.java:24)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)
Process finished with exit code 0