Impala请求状态异常求助：执行查询时遇Bad status错误

异常信息：
请求37563状态异常：TGetOperationStatusResp(status=TStatus(errorCode=None, errorMessage=None, sqlState=None, infoMessages=None, statusCode=0), operationState=5, errorMessage=None, sqlState=None, errorCode=None)

执行以下查询时触发该异常：

refresh sst_spot_quotes;
select
  case
    when maxrecordforSST >= hours_sub (CURRENT_TIMESTAMP(), 4) then ''
    else 'error'
  end as msg
from
  (
    select
      to_timestamp (
        CONCAT (
          max(rdate),
          MAX(
            CONCAT (
              LPAD (CAST(rhour as STRING), 2, '0'),
              ':',
              LPAD (CAST(rminute as STRING), 2, '0'),
              ':',
              LPAD (CAST(rsecond as STRING), 2, '0')
            )
          )
        ),
        'yyyy-mmm-ddhh:mm:ss'
      ) as maxrecordforSST
    from
      sst_spot_quotes
    where
      rdate >= days_sub (to_date (CURRENT_TIMESTAMP()), 1)
  ) a

恳请技术人员帮忙定位并解决该异常问题。

内容的提问来源于stack exchange，提问作者Dinesh Deenu