SonarQube Scanner execution execution Error --- Failed to upload report - 500: An error has occurred. Please contact your administrator

问题原因：mysql参数设置问题

检查mysql参数：

mysql> SHOW VARIABLES LIKE 'max_allowed_packet';

修改/etc/my.cnf文件：

[mysqld]

max_allowed_packet = 50M

重启mysql服务：

[root@sonar-test]# service mysql restart

重启sonar服务

[sonar@sonar-test]$ sonar.sh restart