Those are all db connectivity errors. So you user/pass/host/Db-name invalid or permission issues.
Thanks Sebastian Sent from my iPhone > On 30/08/2016, at 4:42 PM, Coscend@OM <om.insig...@coscend.com> wrote: > > Dear OpenMeetings Developers, > > > > We are backing up and restoring database content of OM 3.1.2 from one > instance to another. While restoring, we are getting a database connection > refused error. We would appreciate any vectors to resolve the issue. Below > are the use case, the commands we are using, resulting errors and error log. > > > > > --------- > > USE CASE > > --------- > > 1. Compiled, installed and configured OM 3.1.2. Environment: CentOS 7.3, > MariaDB 10.x, JDK 1.8_u102 > > 2. Declared environmental variables: > > $RED5_HOME=[path_to_dist/red5] > > $OM_CONTEXT=[installation_name_in_webapps] > > 3. For backing up: ./admin.sh -v -b -file test.data.backup.zip > > 4. Compiled and installed another instance of OM 3.1.2. > > 5. For restoring: ./admin.sh -v -i -file test.data.backup.zip --db-type > mysql --drop --db-name test_db_312 > > > > ---------- > > Result: 3 ERRORS > > ---------- > > [ERROR] [main] org.apache.openmeetings.cli.Admin - Install failed > > org.apache.openjpa.util.UserException: A connection could not be obtained > for driver class "com.mysql.jdbc.Driver" and URL > "jdbc:mysql://localhost:3306/test_db_312? > > . > > Caused by: > com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could > not create connection to database server. Attempted reconnect 3 times. > Giving up. > > . > > Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access > denied for user ''@'localhost' to database 'test_db_312' > > > > ========== > > ERROR LOG > > ========= > > [ERROR] [main] org.apache.openmeetings.cli.Admin - Install failed > > org.apache.openjpa.util.UserException: A connection could not be obtained > for driver class "com.mysql.jdbc.Driver" and URL > "jdbc:mysql://localhost:3306/test_db_312?autoReconnect=true&useUnicode=true& > createDatabaseIfNotExist=true&characterEncoding=utf-8&connectionCollation=ut > f8_general_ci&cachePrepStmts=true&cacheCallableStatements=true&cacheServerCo > nfiguration=true&useLocalSessionState=true&elideSetAutoCommits=true&alwaysSe > ndSetIsolation=false&enableQueryTimeouts=false&prepStmtCacheSize=3000&prepSt > mtCacheSqlLimit=1000". You may have specified an invalid URL. > > at > org.apache.openjpa.jdbc.schema.DataSourceFactory.newConnectException(DataSou > rceFactory.java:272) > > at > org.apache.openjpa.jdbc.schema.DataSourceFactory.installDBDictionary(DataSou > rceFactory.java:258) > > at > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getConnectionFactory(JDBC > ConfigurationImpl.java:733) > > at > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDataSource(JDBCConfigu > rationImpl.java:878) > > at > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDataSource2(JDBCConfig > urationImpl.java:920) > > at > org.apache.openjpa.jdbc.schema.SchemaTool.<init>(SchemaTool.java:132) > > at org.apache.openmeetings.cli.Admin.runSchemaTool(Admin.java:475) > > at org.apache.openmeetings.cli.Admin.immediateDropDB(Admin.java:500) > > at org.apache.openmeetings.cli.Admin.dropDB(Admin.java:466) > > at org.apache.openmeetings.cli.Admin.process(Admin.java:268) > > at org.apache.openmeetings.cli.Admin.main(Admin.java:528) > > Caused by: > com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could > not create connection to database server. Attempted reconnect 3 times. > Giving up. > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces > sorImpl.java:62) > > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc > torAccessorImpl.java:45) > > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > > at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) > > at com.mysql.jdbc.Util.getInstance(Util.java:387) > > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917) > > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896) > > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885) > > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860) > > at > com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2163) > > at > com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2088) > > at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) > > at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces > sorImpl.java:62) > > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc > torAccessorImpl.java:45) > > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > > at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) > > at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) > > at > com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) > > at > org.apache.openjpa.jdbc.schema.SimpleDriverDataSource.getSimpleConnection(Si > mpleDriverDataSource.java:91) > > at > org.apache.openjpa.jdbc.schema.AutoDriverDataSource.getConnection(AutoDriver > DataSource.java:39) > > at > org.apache.openjpa.jdbc.schema.SimpleDriverDataSource.getConnection(SimpleDr > iverDataSource.java:60) > > at > org.apache.openjpa.lib.jdbc.DelegatingDataSource.getConnection(DelegatingDat > aSource.java:116) > > at > org.apache.openjpa.lib.jdbc.DecoratingDataSource.getConnection(DecoratingDat > aSource.java:92) > > at > org.apache.openjpa.jdbc.schema.DataSourceFactory.installDBDictionary(DataSou > rceFactory.java:250) > > ... 9 common frames omitted > > Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access > denied for user ''@'localhost' to database 'test_db_312' > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces > sorImpl.java:62) > > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc > torAccessorImpl.java:45) > > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > > at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) > > at com.mysql.jdbc.Util.getInstance(Util.java:387) > > at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:942) > > at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966) > > at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902) > > at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2526) > > at com.mysql.jdbc.MysqlIO.changeDatabaseTo(MysqlIO.java:1958) > > at > com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.j > ava:1890) > > at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228) > > at > com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) > > at > com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2104) > > ... 25 common frames omitted > > > > Thank you. > > > > Sincerely, > > > > Hemant K. Sabat > > > > Coscend Communications Solutions > > Web site: <http://www.coscend.com/> www.Coscend.com > > ------------------------------------------------------------------ > > CONFIDENTIALITY NOTICE: See 'Confidentiality Notice Regarding E-mail > Messages from Coscend Communications Solutions' posted at: > <http://www.coscend.com/Terms_and_Conditions.html> > http://www.Coscend.com/Terms_and_Conditions.html > > > > > > >
