JIRA and Confleunce down after rebooting the server

After rebooting the server, both jira and confleunce went down and showing the error message below. 

Please someone help how we can resolve this issue.. 

 

ScreenHunter_927 Jan. 13 07.18.jpgScreenHunter_929 Jan. 13 07.28.jpg

 

1 answer

0 vote

Check the application logs. That will have more information on what is going on.

Thanks Jobin,

Below is the log from JIRA

 

2018-01-14 16:34:54,392 http-nio-8080-exec-21 ERROR - [o.a.c.c.C.[.[localhost].[/].[action]] Servlet.service() for servlet action threw exception
java.lang.NoClassDefFoundError: Could not initialize class webwork.dispatcher.GenericDispatcher
at com.atlassian.jira.web.dispatcher.JiraWebworkActionDispatcher.prepareDispatcher(JiraWebworkActionDispatcher.java:205)
at com.atlassian.jira.web.dispatcher.JiraWebworkActionDispatcher.service(JiraWebworkActionDispatcher.java:142)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
... 54 filtered
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
2018-01-14 16:34:57,421 http-nio-8080-exec-22 WARN [o.a.commons.dbcp2.BasicDataSource] Failed to complete JMX registration
javax.management.InstanceAlreadyExistsException: com.atlassian.jira:name=BasicDataSource
at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
at org.apache.commons.dbcp2.BasicDataSource.jmxRegister(BasicDataSource.java:2346)
at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2029)
at org.apache.commons.dbcp2.BasicDataSource.setLogWriter(BasicDataSource.java:1625)
at org.ofbiz.core.entity.transaction.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:103)
at org.ofbiz.core.entity.ConnectionFactory.tryGenericConnectionSources(ConnectionFactory.java:69)
at org.ofbiz.core.entity.transaction.JNDIFactory.getConnection(JNDIFactory.java:164)
at org.ofbiz.core.entity.TransactionFactory.getConnection(TransactionFactory.java:136)
at org.ofbiz.core.entity.ConnectionFactory.getConnection(ConnectionFactory.java:59)
at org.ofbiz.core.entity.config.DatasourceInfo.getDatabaseTypeFromJDBCConnection(DatasourceInfo.java:402)
at org.ofbiz.core.entity.GenericDAO.selectListIteratorByCondition(GenericDAO.java:831)
at org.ofbiz.core.entity.GenericDAO.selectByAnd(GenericDAO.java:730)
at org.ofbiz.core.entity.GenericHelperDAO.findByAnd(GenericHelperDAO.java:150)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:903)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:881)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:850)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.findPropertyEntry(OFBizPropertySet.java:298)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.exists(OFBizPropertySet.java:170)
at com.atlassian.jira.propertyset.JiraCachingPropertySet.exists(JiraCachingPropertySet.java:566)
at com.atlassian.jira.propertyset.BootstrapOfBizPropertyEntryStore.getType(BootstrapOfBizPropertyEntryStore.java:67)
at com.atlassian.jira.propertyset.CachingOfBizPropertySet.exists(CachingOfBizPropertySet.java:139)
at com.atlassian.jira.config.properties.ApplicationPropertiesStore.getOption(ApplicationPropertiesStore.java:157)
at com.atlassian.jira.config.properties.ApplicationPropertiesImpl.getOption(ApplicationPropertiesImpl.java:86)
... 1 filtered
at java.util.Optional.map(Optional.java:215)
... 22 filtered
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
2018-01-14 16:34:57,422 http-nio-8080-exec-22 ERROR [NoModule] Error getting datasource via DBCP: JdbcDatasourceInfo{uri='jdbc:mysql://localhost:3306/jiradb?useUnicode=true&characterEncoding=UTF8&sessionVariables=default_storage_engine=InnoDB', driverClassName='com.mysql.jdbc.Driver', username='jiradbuser', password='********', isolationLevel='null', connectionProperties=null, connectionPoolInfo=ConnectionPoolInfo{maxSize=20, minSize=20, initialSize=null, maxIdle=20, maxWait=30000, sleepTime=300000, lifeTime=600000, deadLockMaxWait=600000, deadLockRetryWait=10000, validationQuery='select 1', minEvictableTimeMillis=60000, timeBetweenEvictionRunsMillis=300000, poolPreparedStatements=null, testOnBorrow=false, testOnReturn=null, testWhileIdle=true, maxOpenPreparedStatements=null, numTestsPerEvictionRun=null, removeAbandonedOnBorrow=true, removeAbandonedOnMaintanance=null, removeAbandonedTimeout=300, validationQueryTimeout=3, defaultCatalog=null}}
java.sql.SQLException: Cannot create PoolableConnectionFactory (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 org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2291)
at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2038)
at org.apache.commons.dbcp2.BasicDataSource.setLogWriter(BasicDataSource.java:1625)
at org.ofbiz.core.entity.transaction.DBCPConnectionFactory.getConnection(DBCPConnectionFactory.java:103)
at org.ofbiz.core.entity.ConnectionFactory.tryGenericConnectionSources(ConnectionFactory.java:69)
at org.ofbiz.core.entity.transaction.JNDIFactory.getConnection(JNDIFactory.java:164)
at org.ofbiz.core.entity.TransactionFactory.getConnection(TransactionFactory.java:136)
at org.ofbiz.core.entity.ConnectionFactory.getConnection(ConnectionFactory.java:59)
at org.ofbiz.core.entity.config.DatasourceInfo.getDatabaseTypeFromJDBCConnection(DatasourceInfo.java:402)
at org.ofbiz.core.entity.GenericDAO.selectListIteratorByCondition(GenericDAO.java:831)
at org.ofbiz.core.entity.GenericDAO.selectByAnd(GenericDAO.java:730)
at org.ofbiz.core.entity.GenericHelperDAO.findByAnd(GenericHelperDAO.java:150)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:903)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:881)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:850)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.findPropertyEntry(OFBizPropertySet.java:298)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.exists(OFBizPropertySet.java:170)
at com.atlassian.jira.propertyset.JiraCachingPropertySet.exists(JiraCachingPropertySet.java:566)
at com.atlassian.jira.propertyset.BootstrapOfBizPropertyEntryStore.getType(BootstrapOfBizPropertyEntryStore.java:67)
at com.atlassian.jira.propertyset.CachingOfBizPropertySet.exists(CachingOfBizPropertySet.java:139)
at com.atlassian.jira.config.properties.ApplicationPropertiesStore.getOption(ApplicationPropertiesStore.java:157)
at com.atlassian.jira.config.properties.ApplicationPropertiesImpl.getOption(ApplicationPropertiesImpl.java:86)
... 1 filtered
at java.util.Optional.map(Optional.java:215)
... 22 filtered
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:339)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2247)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
... 2 filtered
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:39)
at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:256)
at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2301)
at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2287)
... 49 more
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:214)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:298)
... 64 more
2018-01-14 16:34:57,423 http-nio-8080-exec-22 ERROR [NoModule] Could not determine database type.
com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:339)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2247)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
... 2 filtered
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at org.ofbiz.core.entity.ConnectionFactory.tryGenericConnectionSources(ConnectionFactory.java:87)
at org.ofbiz.core.entity.transaction.JNDIFactory.getConnection(JNDIFactory.java:164)
at org.ofbiz.core.entity.TransactionFactory.getConnection(TransactionFactory.java:136)
at org.ofbiz.core.entity.ConnectionFactory.getConnection(ConnectionFactory.java:59)
at org.ofbiz.core.entity.config.DatasourceInfo.getDatabaseTypeFromJDBCConnection(DatasourceInfo.java:402)
at org.ofbiz.core.entity.GenericDAO.selectListIteratorByCondition(GenericDAO.java:831)
at org.ofbiz.core.entity.GenericDAO.selectByAnd(GenericDAO.java:730)
at org.ofbiz.core.entity.GenericHelperDAO.findByAnd(GenericHelperDAO.java:150)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:903)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:881)
at org.ofbiz.core.entity.GenericDelegator.findByAnd(GenericDelegator.java:850)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.findPropertyEntry(OFBizPropertySet.java:298)
at com.opensymphony.module.propertyset.ofbiz.OFBizPropertySet.exists(OFBizPropertySet.java:170)
at com.atlassian.jira.propertyset.JiraCachingPropertySet.exists(JiraCachingPropertySet.java:566)
at com.atlassian.jira.propertyset.BootstrapOfBizPropertyEntryStore.getType(BootstrapOfBizPropertyEntryStore.java:67)
at com.atlassian.jira.propertyset.CachingOfBizPropertySet.exists(CachingOfBizPropertySet.java:139)
at com.atlassian.jira.config.properties.ApplicationPropertiesStore.getOption(ApplicationPropertiesStore.java:157)
at com.atlassian.jira.config.properties.ApplicationPropertiesImpl.getOption(ApplicationPropertiesImpl.java:86)
... 1 filtered
at java.util.Optional.map(Optional.java:215)
... 22 filtered
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:214)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:298)
... 59 more

This is from Confluence

 

2018-01-14 23:21:12,262 WARN [C3P0PooledConnectionPoolManager[identityToken->1br9qy89s1sobwv61v3hwqa|f71e19f]-HelperThread-#2] [mchange.v2.resourcepool.BasicResourcePool] log Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@1b83eaf8 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2018-01-14 23:21:12,262 WARN [C3P0PooledConnectionPoolManager[identityToken->1br9qy89s1sobwv61v3hwqa|f71e19f]-HelperThread-#1] [mchange.v2.resourcepool.BasicResourcePool] log com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@413430f5 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.GeneratedConstructorAccessor54.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:341)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2192)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2225)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2024)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.GeneratedConstructorAccessor51.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300)
... 20 more
2018-01-14 23:21:12,263 WARN [C3P0PooledConnectionPoolManager[identityToken->1br9qy89s1sobwv61v3hwqa|f71e19f]-HelperThread-#1] [mchange.v2.resourcepool.BasicResourcePool] log Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@1b83eaf8 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2018-01-14 23:21:12,263 WARN [C3P0PooledConnectionPoolManager[identityToken->1br9qy89s1sobwv61v3hwqa|f71e19f]-HelperThread-#2] [mchange.v2.resourcepool.BasicResourcePool] log com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@7dfb9522 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.GeneratedConstructorAccessor54.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:341)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2192)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2225)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2024)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.GeneratedConstructorAccessor51.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300)
... 20 more

Looks like JIRA is unable to connect to your MySQL DB. You might want to check with your DBA and figure it out.

Hi Jobin, thanks for your advice. I am not sure if you do but do you offer any one-off support service to fix our issue? Any method for us to talk over email?   

Kenny,

You might want to reach out to one of the Atlassian expert partners. See https://www.atlassian.com/partners/search?page=1

I work for Go2Group. You can reach out to them as well. I personally do not do any support but my company does that for many customers!

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