我不确定这里出了什么问题，在理想情况下应该不会发生
但是，当我碰巧在HDFS服务关闭时执行以下查询时，即使出现以下错误，我也会注意到该分区已删除
Query: alter table fenet5_dev.dw_malicious_events drop partition (occurred_month = 201808) purge
ERROR: ImpalaRuntimeException: Error making 'dropPartition' RPC to Hive Metastore:
CAUSED BY: MetaException: Got exception: java.net.ConnectException Call From hpc143 to hpc123:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused