Failed to upload report - An error has occurred. Please contact your administrator

執行sonar時候報錯信息以下：

解決辦法：

1 查看日誌定位具體緣由：

進入sonarqube安裝目錄下面的logs文件夾，找到web.log文件，內容以下：

2019.10.24 14:02:44 ERROR web[AW3acH3vG5436K/TAARN][o.s.s.w.WebServiceEngine] Fail to process request http://127.0.0.1:9000/api/ce/submit?projectKey=fastjson&projectName=fastjson
java.lang.IllegalStateException: Fail to insert data of CE task AW38XDQ0gtH3kEP1Pxgx at org.sonar.db.ce.CeTaskInputDao.insert(CeTaskInputDao.java:56) at org.sonar.server.ce.queue.ReportSubmitter.submitReport(ReportSubmitter.java:189) at org.sonar.server.ce.queue.ReportSubmitter.submit(ReportSubmitter.java:89) at org.sonar.server.ce.ws.SubmitAction.handle(SubmitAction.java:121) at org.sonar.server.ws.WebServiceEngine.execute(WebServiceEngine.java:110) at org.sonar.server.ws.WebServiceFilter.doFilter(WebServiceFilter.java:88) at org.sonar.server.platform.web.MasterServletFilter$GodFilterChain.doFilter(MasterServletFilter.java:126) at org.sonar.server.platform.web.MasterServletFilter.doFilter(MasterServletFilter.java:95) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:87) at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.CacheControlFilter.doFilter(CacheControlFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.SecurityServletFilter.doHttpFilter(SecurityServletFilter.java:76) at org.sonar.server.platform.web.SecurityServletFilter.doFilter(SecurityServletFilter.java:48) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.RedirectFilter.doFilter(RedirectFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.requestid.RequestIdFilter.doFilter(RequestIdFilter.java:63) 2019.10.24 14:02:44 ERROR web[AW3acH3vG5436K/TAARN][o.s.s.w.WebServiceEngine] Fail to process request http://127.0.0.1:9000/api/ce/submit?projectKey=fastjson&projectName=fastjson
java.lang.IllegalStateException: Fail to insert data of CE task AW38XDQ0gtH3kEP1Pxgx at org.sonar.db.ce.CeTaskInputDao.insert(CeTaskInputDao.java:56) at org.sonar.server.ce.queue.ReportSubmitter.submitReport(ReportSubmitter.java:189) at org.sonar.server.ce.queue.ReportSubmitter.submit(ReportSubmitter.java:89) at org.sonar.server.ce.ws.SubmitAction.handle(SubmitAction.java:121) at org.sonar.server.ws.WebServiceEngine.execute(WebServiceEngine.java:110) at org.sonar.server.ws.WebServiceFilter.doFilter(WebServiceFilter.java:88) at org.sonar.server.platform.web.MasterServletFilter$GodFilterChain.doFilter(MasterServletFilter.java:126) at org.sonar.server.platform.web.MasterServletFilter.doFilter(MasterServletFilter.java:95) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:87) at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.CacheControlFilter.doFilter(CacheControlFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.SecurityServletFilter.doHttpFilter(SecurityServletFilter.java:76) at org.sonar.server.platform.web.SecurityServletFilter.doFilter(SecurityServletFilter.java:48) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.RedirectFilter.doFilter(RedirectFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.requestid.RequestIdFilter.doFilter(RequestIdFilter.java:63) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.sonar.server.platform.web.RootFilter.doFilter(RootFilter.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at ch.qos.logback.access.tomcat.LogbackValve.invoke(LogbackValve.java:256) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (7079751 > 4194304). You can change this value on the server by setting the max_allowed_packet' variable.
        at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3681) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2512) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2079) at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2013) at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5104) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1998) at org.apache.commons.dbcp2.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:136) at org.apache.commons.dbcp2.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:136) at org.sonar.db.ce.CeTaskInputDao.insert(CeTaskInputDao.java:53)

根據日誌內容提示：You can change this value on the server by setting the max_allowed_packet' variable. 

問題緣由：MySQL數據庫中寫數據的時候超過了單次最大數據量，可經過修改MySQL中max_allowed_packet參數進行解決。

2 MySQL修改配置文件

在etc目錄下找到my.cnf文件，[mysqld]下添加以下配置：

max_allowed_packet  = 64M

修改好後，保存文件。

3 重啓MySQL和Sonar：

其中，重啓MySQL後，進入MySQL執行以下命令能夠查看修改後的參數值：

show VARIABLES like '%max_allowed_packet%';

4 從新執行sonar掃描mvn命令，build成功。