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    <title>question ambari server issue, its not running in Support Questions</title>
    <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269591#M206951</link>
    <description>&lt;P&gt;Internal Exception: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;Error Code: 0&lt;BR /&gt;at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:316)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:147)&lt;BR /&gt;at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.setOrDetectDatasource(DatabaseSessionImpl.java:207)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:760)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:265)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:731)&lt;BR /&gt;... 9 more&lt;BR /&gt;Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:118)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:692)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:146)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:144)&lt;BR /&gt;... 14 more&lt;BR /&gt;Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1469)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:644)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:554)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutAndMarkConnectionInUse(C3P0PooledConnectionPool.java:758)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:685)&lt;BR /&gt;... 16 more&lt;BR /&gt;Caused by: java.sql.SQLException: Access denied for user 'ambari1'@'gaian-lap386.com' (using password: YES)&lt;BR /&gt;at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2188)&lt;/P&gt;
&lt;P&gt;at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2219)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2014)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.&amp;lt;init&amp;gt;(ConnectionImpl.java:776)&lt;BR /&gt;at com.mysql.jdbc.JDBC4Connection.&amp;lt;init&amp;gt;(JDBC4Connection.java:47)&lt;BR /&gt;at sun.reflect.GeneratedConstructorAccessor41.newInstance(Unknown Source)&lt;BR /&gt;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)&lt;BR /&gt;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)&lt;BR /&gt;at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)&lt;BR /&gt;at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)&lt;BR /&gt;at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)&lt;BR /&gt;at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)&lt;BR /&gt;at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)&lt;BR /&gt;at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)&lt;BR /&gt;2019-09-03 10:43:16,931 WARN [C3P0PooledConnectionPoolManager[identityToken-&amp;gt;1hge5nka41w4mewwfbj8xb|5f8e8a9d]-HelperThread-#2] BasicResourcePool:220 - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@7b3cbe6e is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.&lt;/P&gt;</description>
    <pubDate>Tue, 03 Sep 2019 07:29:34 GMT</pubDate>
    <dc:creator>Manoj690</dc:creator>
    <dc:date>2019-09-03T07:29:34Z</dc:date>
    <item>
      <title>ambari server issue, its not running</title>
      <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269591#M206951</link>
      <description>&lt;P&gt;Internal Exception: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;Error Code: 0&lt;BR /&gt;at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:316)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:147)&lt;BR /&gt;at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.setOrDetectDatasource(DatabaseSessionImpl.java:207)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:760)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:265)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:731)&lt;BR /&gt;... 9 more&lt;BR /&gt;Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:118)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:692)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:146)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:144)&lt;BR /&gt;... 14 more&lt;BR /&gt;Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1469)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:644)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:554)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutAndMarkConnectionInUse(C3P0PooledConnectionPool.java:758)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:685)&lt;BR /&gt;... 16 more&lt;BR /&gt;Caused by: java.sql.SQLException: Access denied for user 'ambari1'@'gaian-lap386.com' (using password: YES)&lt;BR /&gt;at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2188)&lt;/P&gt;
&lt;P&gt;at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2219)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2014)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.&amp;lt;init&amp;gt;(ConnectionImpl.java:776)&lt;BR /&gt;at com.mysql.jdbc.JDBC4Connection.&amp;lt;init&amp;gt;(JDBC4Connection.java:47)&lt;BR /&gt;at sun.reflect.GeneratedConstructorAccessor41.newInstance(Unknown Source)&lt;BR /&gt;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)&lt;BR /&gt;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)&lt;BR /&gt;at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)&lt;BR /&gt;at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)&lt;BR /&gt;at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)&lt;BR /&gt;at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)&lt;BR /&gt;at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)&lt;BR /&gt;at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)&lt;BR /&gt;2019-09-03 10:43:16,931 WARN [C3P0PooledConnectionPoolManager[identityToken-&amp;gt;1hge5nka41w4mewwfbj8xb|5f8e8a9d]-HelperThread-#2] BasicResourcePool:220 - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@7b3cbe6e is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.&lt;/P&gt;</description>
      <pubDate>Tue, 03 Sep 2019 07:29:34 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269591#M206951</guid>
      <dc:creator>Manoj690</dc:creator>
      <dc:date>2019-09-03T07:29:34Z</dc:date>
    </item>
    <item>
      <title>Re: ambari server issue, its not running</title>
      <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269593#M206953</link>
      <description>&lt;P&gt;&lt;a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/68583"&gt;@Manoj690&lt;/a&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;As your error is as following:&lt;/P&gt;&lt;LI-CODE lang="python"&gt;Caused by: java.sql.SQLException: Access denied for user 'ambari1'@'gaian-lap386.com' (using password: YES)&lt;/LI-CODE&gt;&lt;P&gt;hence you will need to make sure to add the Grant as following for the 'ambari1'@'gaian-lap386.com' user in MySQL DB so that it can connect to mysql from the host where you are running the ambari server.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;STRONG&gt;Example:&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;LI-CODE lang="python"&gt;# mysql -u root -p
Enter Password: &amp;lt;YOUR_PASSWORD&amp;gt;
mysql&amp;gt; use mysql;

mysql&amp;gt; GRANT ALL PRIVILEGES ON *.* TO 'ambari1'@'gaian-lap386.com' IDENTIFIED BY 'XXXXXXXXXX' WITH GRANT OPTION;
mysql&amp;gt; GRANT ALL PRIVILEGES ON *.* TO 'ambari1'@'%' IDENTIFIED BY 'XXXXXXXXXX' WITH GRANT OPTION;
mysql&amp;gt; FLUSH PRIVILEGES;&lt;/LI-CODE&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;In the above command please replace the 'XXXXXXXXXX' with your ambari1 DB user's password.&lt;/P&gt;&lt;P&gt;If you still face the issue then please share the output of the following command&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;LI-CODE lang="python"&gt;mysql&amp;gt; SELECT user, host FROM user;&lt;/LI-CODE&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;.&lt;/P&gt;&lt;P&gt;More details about GRANT and Permissions in Ambari DB can be found in the following link:&lt;/P&gt;&lt;P&gt;&lt;A href="https://docs.cloudera.com/HDPDocuments/Ambari-2.7.3.0/administering-ambari/content/amb_using_ambari_with_mysql_or_mariadb.html" target="_blank"&gt;https://docs.cloudera.com/HDPDocuments/Ambari-2.7.3.0/administering-ambari/content/amb_using_ambari_with_mysql_or_mariadb.html&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 03 Sep 2019 05:50:13 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269593#M206953</guid>
      <dc:creator>jsensharma</dc:creator>
      <dc:date>2019-09-03T05:50:13Z</dc:date>
    </item>
    <item>
      <title>Re: ambari server issue, its not running</title>
      <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269596#M206956</link>
      <description>Still same problem&lt;BR /&gt;SELECT user, host FROM user;&lt;BR /&gt;+------------------+------------------+&lt;BR /&gt;| user | host |&lt;BR /&gt;+------------------+------------------+&lt;BR /&gt;| ambari | % |&lt;BR /&gt;| ambari1 | % |&lt;BR /&gt;| ambarii | % |&lt;BR /&gt;| hive | % |&lt;BR /&gt;| manojs | % |&lt;BR /&gt;| ambari | gaian-lap386.com |&lt;BR /&gt;| ambari1 | gaian-lap386.com |&lt;BR /&gt;| ambarii | gaian-lap386.com |&lt;BR /&gt;| manojs | gaian-lap386.com |&lt;BR /&gt;| ambari | localhost |&lt;BR /&gt;| ambari1 | localhost |&lt;BR /&gt;| ambarii | localhost |&lt;BR /&gt;| debian-sys-maint | localhost |&lt;BR /&gt;| hive | localhost |&lt;BR /&gt;| hiveuser | localhost |&lt;BR /&gt;| manoj | localhost |&lt;BR /&gt;| manojs | localhost |&lt;BR /&gt;| mysql.session | localhost |&lt;BR /&gt;| mysql.sys | localhost |&lt;BR /&gt;| root | localhost |&lt;BR /&gt;+------------------+------------------+&lt;BR /&gt;20 rows in set (0.00 sec)&lt;BR /&gt;</description>
      <pubDate>Tue, 03 Sep 2019 05:52:26 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269596#M206956</guid>
      <dc:creator>Manoj690</dc:creator>
      <dc:date>2019-09-03T05:52:26Z</dc:date>
    </item>
    <item>
      <title>Re: ambari server issue, its not running</title>
      <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269606#M206961</link>
      <description>&lt;P&gt;Tue Sep 03 12:20:37 IST 2019 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.&lt;BR /&gt;An unexpected error occured during starting Ambari Server.&lt;BR /&gt;javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.2.v20151217-774c696): org.eclipse.persistence.exceptions.DatabaseException&lt;BR /&gt;Internal Exception: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;Error Code: 0&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:815)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getAbstractSession(EntityManagerFactoryDelegate.java:205)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:305)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:337)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:303)&lt;BR /&gt;at com.google.inject.persist.jpa.JpaPersistService.begin(JpaPersistService.java:77)&lt;BR /&gt;at com.google.inject.persist.jpa.AmbariJpaPersistService.begin(AmbariJpaPersistService.java:28)&lt;BR /&gt;at org.apache.ambari.server.orm.AmbariLocalSessionInterceptor.invoke(AmbariLocalSessionInterceptor.java:40)&lt;BR /&gt;at org.apache.ambari.server.checks.DatabaseConsistencyCheckHelper.checkDBVersionCompatible(DatabaseConsistencyCheckHelper.java:222)&lt;BR /&gt;at org.apache.ambari.server.controller.AmbariServer.main(AmbariServer.java:1099)&lt;BR /&gt;Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.2.v20151217-774c696): org.eclipse.persistence.exceptions.DatabaseException&lt;BR /&gt;Internal Exception: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;Error Code: 0&lt;BR /&gt;at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:316)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:147)&lt;BR /&gt;at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.setOrDetectDatasource(DatabaseSessionImpl.java:207)&lt;BR /&gt;at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:760)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:265)&lt;BR /&gt;at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:731)&lt;BR /&gt;... 9 more&lt;/P&gt;&lt;P&gt;Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!&lt;BR /&gt;at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:118)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:692)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:146)&lt;BR /&gt;at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:144)&lt;BR /&gt;... 14 more&lt;BR /&gt;Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1469)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:644)&lt;BR /&gt;at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:554)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutAndMarkConnectionInUse(C3P0PooledConnectionPool.java:758)&lt;BR /&gt;at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:685)&lt;BR /&gt;... 16 more&lt;BR /&gt;Caused by: java.sql.SQLException: Access denied for user 'ambari1'@'gaian-lap386.com' (using password: YES)&lt;BR /&gt;at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)&lt;BR /&gt;at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2188)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2219)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2014)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.&amp;lt;init&amp;gt;(ConnectionImpl.java:776)&lt;BR /&gt;at com.mysql.jdbc.JDBC4Connection.&amp;lt;init&amp;gt;(JDBC4Connection.java:47)&lt;BR /&gt;at sun.reflect.GeneratedConstructorAccessor42.newInstance(Unknown Source)&lt;BR /&gt;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)&lt;BR /&gt;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)&lt;BR /&gt;at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)&lt;BR /&gt;at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)&lt;/P&gt;</description>
      <pubDate>Tue, 03 Sep 2019 06:59:22 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269606#M206961</guid>
      <dc:creator>Manoj690</dc:creator>
      <dc:date>2019-09-03T06:59:22Z</dc:date>
    </item>
    <item>
      <title>Re: ambari server issue, its not running</title>
      <link>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269614#M206969</link>
      <description>&lt;P&gt;Can you help me whats the solution for above error&lt;/P&gt;</description>
      <pubDate>Tue, 03 Sep 2019 08:10:43 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Support-Questions/ambari-server-issue-its-not-running/m-p/269614#M206969</guid>
      <dc:creator>Manoj690</dc:creator>
      <dc:date>2019-09-03T08:10:43Z</dc:date>
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