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Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
339) at org.apache.hive.service.cli.operation.SQLOperation.runQuery(SQLOperation.java:169) at org.apache.hive.service.cli.operation.SQLOperation.access
kerberos_service_name：参数值为实际连接的实例，以连接Hive为例，修改为：kerberos_service_name="hive"。
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
操作步骤 需要先配置External shuffle service，具体请参考使用External Shuffle Service提升性能。
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
升级MRS集群Master节点规格前提条件 确认是否开启了主机安全服务（Host Security Service，简称HSS），如果已开启，升级Master节点规格前需要先暂时关闭HSS服务对MRS集群的监测。
执行service ntpd start或systemctl restart ntpd命令启动NTP服务。 执行ntpstat命令查看时间同步结果。 父主题： 集群管理类
kerberos_service_name：参数值为实际连接的实例，以连接Hive为例，修改为：kerberos_service_name="hive"。
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
select covar_samp(y,x) from (values (1,5),(2,6),(3,7),(4,8)) as t(x,y);-- 1.6666666 kurtosis(x) 描述：峰度又称峰态系数，表征概率密度分布曲线在平均值处峰值高低的特征数，即是描述总体中所有取值分布形态陡缓程度的统计量
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
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