Mysql SonarQube Runner-JDBC错误：通信链路故障

我的开发虚拟机上的sonar runner无法连接到另一个虚拟机中托管的SonarQube实例。使用telnet通过端口9000在这两个系统之间进行通信是成功的，sonar用户已在本地成功登录mysql

在检查错误时，运行sonar runner的开发虚拟机成功连接并下载jdbc驱动程序，然后在创建数据源时失败

如能就故障排除的进一步步骤提供任何建议，将不胜感激

版本：

SonarQube跑步者2.4 Java 1.7.0_45 Oracle公司（64位） Linux 3.5.0-42-通用amd64

INFO: Error stacktraces are turned on.
INFO: Runner configuration file: /opt/sonar-runner/sonar-runner-2.4/conf/sonar-runner.properties
INFO: Project configuration file: NONE
INFO: Default locale: "en_US", source code encoding: "UTF-8" (analysis is platform dependent)
INFO: Work directory: /opt/sonar-runner/sonar-runner-2.4/bin/./.sonar
INFO: SonarQube Server 4.5.1
11:41:29.936 INFO  - Load global referentials...
11:41:29.947 DEBUG - Download: http://SonarQube:9000/batch/global (no proxy)
11:41:30.104 INFO  - Load global referentials done: 169 ms
11:41:30.113 INFO  - User cache: /root/.sonar/cache
11:41:30.123 INFO  - Install plugins
11:41:30.123 DEBUG - Download index of plugins
11:41:30.124 DEBUG - Download: http://SonarQube:9000/deploy/plugins/index.txt (no proxy)
11:41:30.213 INFO  - Install JDBC driver
11:41:30.213 DEBUG - Download index of jdbc-driver
11:41:30.214 DEBUG - Download: http://SonarQube:9000/deploy/jdbc-driver.txt (no proxy)
11:41:30.221 INFO  - Create JDBC datasource for jdbc:mysql://SonarQube:3306/sonar?useUnicode=true&characterEncoding=utf8
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
Total time: 0.964s
Final Memory: 4M/38M
INFO: ------------------------------------------------------------------------
ERROR: Error during Sonar runner execution
org.sonar.runner.impl.RunnerException: Unable to execute Sonar
    at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:91)
    at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69)
    at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
    at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:102)
    at org.sonar.runner.api.Runner.execute(Runner.java:100)
    at org.sonar.runner.Main.executeTask(Main.java:70)
    at org.sonar.runner.Main.execute(Main.java:59)
    at org.sonar.runner.Main.main(Main.java:53)
Caused by: java.lang.IllegalStateException: Fail to connect to database
    at org.sonar.core.persistence.DefaultDatabase.start(DefaultDatabase.java:77)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110)
    at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89)
    at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
    at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
    at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
    at org.picocontainer.behaviors.Stored.start(Stored.java:110)
    at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1015)
    at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1008)
    at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:766)
    at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:91)
    at org.sonar.batch.bootstrapper.Batch.start(Batch.java:81)
    at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:67)
    at org.sonar.runner.batch.IsolatedLauncher.execute(IsolatedLauncher.java:48)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:87)
    ... 9 more
Caused by: org.apache.commons.dbcp.SQLNestedException: 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.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
    at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
    at org.apache.commons.dbcp.BasicDataSource.getLogWriter(BasicDataSource.java:1098)
    at org.apache.commons.dbcp.BasicDataSourceFactory.createDataSource(BasicDataSourceFactory.java:350)
    at org.sonar.core.persistence.DefaultDatabase.initDatasource(DefaultDatabase.java:103)
    at org.sonar.core.persistence.DefaultDatabase.start(DefaultDatabase.java:72)
    ... 31 more
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.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1121)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:358)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2489)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347)
    at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
    at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
    at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
    at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
    ... 36 more
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at java.net.Socket.<init>(Socket.java:425)
    at java.net.Socket.<init>(Socket.java:241)
    at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:259)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:308)
    ... 52 more

INFO:错误堆栈跟踪已打开。
信息：转轮配置文件：/opt/sonar-Runner/sonar-Runner-2.4/conf/sonar-Runner.properties
信息：项目配置文件：无
信息：默认语言环境：“en_US”，源代码编码：“UTF-8”（分析依赖于平台）
信息：工作目录：/opt/sonar-runner/sonar-runner-2.4/bin/.sonar
信息：SonarQube服务器4.5.1
11:41:29.936信息-加载全局引用。。。
11:41:29.947调试-下载：http://SonarQube:9000/batch/global （无代理人）
11:41:30.104信息-加载全局引用完成：169毫秒
11:41:30.113信息-用户缓存：/root/.sonar/cache
11:41:30.123信息-安装插件
11:41:30.123调试-插件下载索引
11:41:30.124调试-下载：http://SonarQube:9000/deploy/plugins/index.txt （无代理人）
11:41:30.213信息-安装JDBC驱动程序
11:41:30.213调试-jdbc驱动程序的下载索引
11:41:30.214调试-下载：http://SonarQube:9000/deploy/jdbc-driver.txt（无代理）
11:41:30.221信息-为JDBC创建JDBC数据源：mysql://SonarQube:3306/sonar?useUnicode=true&characterEncoding=utf8
信息：------------------------------------------------------------------------
信息：执行失败
信息：------------------------------------------------------------------------
总时间：0.964s
最终内存：4M/38M
信息：------------------------------------------------------------------------
错误：执行Sonar runner时出错
org.sonar.runner.impl.RunnerException:无法执行sonar
位于org.sonar.runner.impl.BatchLauncher$1.delegateExecution（BatchLauncher.java:91）
位于org.sonar.runner.impl.BatchLauncher$1.run（BatchLauncher.java:75）
位于java.security.AccessController.doPrivileged（本机方法）
位于org.sonar.runner.impl.BatchLauncher.doExecute（BatchLauncher.java:69）
位于org.sonar.runner.impl.BatchLauncher.execute（BatchLauncher.java:50）
位于org.sonar.runner.api.EmbeddedRunner.doExecute（EmbeddedRunner.java:102）
位于org.sonar.runner.api.runner.execute（runner.java:100）
位于org.sonar.runner.Main.executeTask（Main.java:70）
位于org.sonar.runner.Main.execute（Main.java:59）
位于org.sonar.runner.Main.Main（Main.java:53）
原因：java.lang.IllegalStateException:无法连接到数据库
位于org.sonar.core.persistence.DefaultDatabase.start（DefaultDatabase.java:77）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57）中
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:606）
位于org.picocontainer.lifecycle.reflectionLifecycle.invokeMethod（reflectionLifecycleTegy.java:110）
位于org.picocontainer.lifecycle.reflectionLifecycle.ReflectionLifecycleTegy.start（reflectionLifecycleTegy.java:89）
在org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start上（AbstractInjectionFactory.java:84）
位于org.picocontainer.behaviors.AbstractBehavior.start（AbstractBehavior.java:169）
位于org.picocontainer.behaviors.Stored$RealComponentLifecycle.start（Stored.java:132）
位于org.picocontainer.behaviors.Stored.start（Stored.java:110）
位于org.picocontainer.DefaultPicoContainer.PotentialyStartAdapter（DefaultPicoContainer.java:1015）
位于org.picocontainer.DefaultPicoContainer.startapters（DefaultPicoContainer.java:1008）
位于org.picocontainer.DefaultPicoContainer.start（DefaultPicoContainer.java:766）
位于org.sonar.api.platform.ComponentContainer.startComponents（ComponentContainer.java:91）
位于org.sonar.batch.bootstrapper.batch.start（batch.java:81）
位于org.sonar.batch.bootstrapper.batch.execute（batch.java:67）
在org.sonar.runner.batch.IsolatedLauncher.execute（IsolatedLauncher.java:48）上
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57）中
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:606）
位于org.sonar.runner.impl.BatchLauncher$1.delegateExecution（BatchLauncher.java:87）
... 9更多
原因：org.apache.commons.dbcp.SQLNestedException:无法创建PoolableConnectionFactory（通信链路故障
成功发送到服务器的最后一个数据包是0毫秒前的。驱动程序尚未从服务器收到任何数据包。）
位于org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory（BasicDataSource.java:1549）
位于org.apache.commons.dbcp.BasicDataSource.createDataSource（BasicDataSource.java:1388）
位于org.apache.commons.dbcp.BasicDataSource.getLogWriter（BasicDataSource.java:1098）
位于org.apache.commons.dbcp.BasicDataSourceFactory.createDataSource（BasicDataSourceFactory.java:350）
位于org.sonar.core.persistence.DefaultDatabase.initDatasource（DefaultDatabase.java:103）
位于org.sonar.core.persistence.DefaultDatabase.start（DefaultDatabase.java:72）
... 还有31个
原因：com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:通信链路故障
成功发送到服务器的最后一个数据包是0毫秒前的。驱动程序尚未从服务器收到任何数据包。
位于sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
在阳光下