57 lines
2.0 KiB
Python
57 lines
2.0 KiB
Python
###################################################################
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# Copyright (c) 2016 by TAOS Technologies, Inc.
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# All rights reserved.
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#
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# This file is proprietary and confidential to TAOS Technologies.
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# No part of this file may be reproduced, stored, transmitted,
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# disclosed or used in any form or by any means other than as
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# expressly provided by the written permission from Jianhui Tao
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#
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###################################################################
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# -*- coding: utf-8 -*-
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import taos
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import time
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from datetime import datetime
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class DBWriteNonStop:
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def __init__(self):
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self.host = "127.0.0.1"
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self.user = "root"
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self.password = "taosdata"
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self.config = "/etc/taos"
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def connectDB(self):
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self.conn = taos.connect(self.host, self.user, self.password, self.config)
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self.cursor = self.conn.cursor()
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def createTable(self):
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self.cursor.execute("drop database if exists dbwrite")
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self.cursor.execute("create database dbwrite")
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self.cursor.execute("use dbwrite")
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self.cursor.execute("create table if not exists st (ts timestamp, value nchar(50), speed int) tags(dev nchar(50))")
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def insertData(self):
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i = 1
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startTime = datetime.now()
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while True:
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self.cursor.execute("insert into st1 using st tags('dev_001') values(now, 'taosdata%d', %d)" % (i % 10000, i % 100000))
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i += 1
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i = i % 32000000
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endTime = datetime.now()
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if (endTime - startTime).seconds >= 5 * 2:
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startTime = endTime
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self.cursor.execute("select last(ts) from st >> output.txt")
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self.cursor.execute("select count(*) from st >> output.txt")
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time.sleep(.001)
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def closeConn(self):
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self.cursor.close()
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self.conn.close()
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test = DBWriteNonStop()
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test.connectDB()
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test.createTable()
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test.insertData()
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test.closeConn() |