Witryna28 paź 2024 · from impala.dbapi import connect import psycopg2 conn_hive = connect (host="xxx.xxx.xxx.xxx", port=xxx, user='admin', password='password', database='xxx', auth_mechanism="PLAIN", timeout=6000) hive_cursor = conn_hive.cursor () hive_cursor.execute (query_sql) data_list = hive_cursor.fetchall () ...get data... Witryna20 gru 2016 · When I execute a SQL that use get_json_object, it's show HiveServer2Error: AnalysisException: default.get_json_object() unknown.. For example:
hadoop和python的关系_Python连接Hadoop数据中遇到的各种坑
WitrynaAfter some more digging, I found that after updating the #data table (the step right before #create table #output..., if I had Python execute pd.read_sql("""select * from #data""", connection), the console showed that the final few rows of #data contained NaN values in the order column. I have no idea why it would since running the query in SQL Server … Witryna30 mar 2024 · After that, I tried connecting hiveserver2 like below impala_host = 'localhost' impala_port = 10000 client = ibis.impala.connect(host='localhost', … the premise of occam\u0027s razor
python替代hadoop_Python连接Hadoop数据中遇到的各种坑(汇总)
Witryna13 mar 2024 · conn = impala.dbapi.connect( host=host, port=10000, user=None, password=None, auth_mechanism='PLAIN', use_ssl=False, ) This connection does not need username and password. I'm able to use pyhive and pyodbc to connect and do queries with intermittent success. Witryna9 kwi 2024 · import os import pandas as pd from impala.dbapi import connect from impala.util import as_pandas from datetime import datetime user=os.environ ['HIVE_USER'] password=os.environ ['HIVE_PASSWORD'] up_to_date_query = ''' select * from dejavu.tracking_events limit 1 ''' conn = connect (host='ecprdbhdp02 … Witryna14 mar 2024 · The defaults for the parameters you listed are. host='localhost', port=21050, and user=None. I see that both statements that work you give 'my ip', so if we assume that you are passing in 'localhost' there, then the only difference would be the user does not have permissions.. Otherwise, you are giving a non-local host … sigcheck.exe download