test: add splitVGroup.py case for split vgroup
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Alex Duan
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###################################################################
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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 sys
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import random
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import time
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import copy
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import string
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import taos
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from util.log import *
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from util.cases import *
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from util.sql import *
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class TDTestCase:
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# random string
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def random_string(self, count):
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letters = string.ascii_letters
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return ''.join(random.choice(letters) for i in range(count))
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# get col value and total max min ...
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def getColsValue(self, i, j):
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# c1 value
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if random.randint(1, 10) == 5:
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c1 = None
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else:
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c1 = 1
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# c2 value
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if j % 3200 == 0:
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c2 = 8764231
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elif random.randint(1, 10) == 5:
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c2 = None
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else:
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c2 = random.randint(-87654297, 98765321)
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value = f"({self.ts}, "
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# c1
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if c1 is None:
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value += "null,"
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else:
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self.c1Cnt += 1
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value += f"{c1},"
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# c2
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if c2 is None:
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value += "null,"
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else:
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value += f"{c2},"
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# total count
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self.c2Cnt += 1
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# max
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if self.c2Max is None:
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self.c2Max = c2
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else:
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if c2 > self.c2Max:
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self.c2Max = c2
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# min
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if self.c2Min is None:
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self.c2Min = c2
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else:
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if c2 < self.c2Min:
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self.c2Min = c2
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# sum
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if self.c2Sum is None:
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self.c2Sum = c2
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else:
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self.c2Sum += c2
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# c3 same with ts
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value += f"{self.ts})"
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# move next
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self.ts += 1
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return value
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# insert data
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def insertData(self):
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tdLog.info("insert data ....")
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sqls = ""
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for i in range(self.childCnt):
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# insert child table
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values = ""
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pre_insert = f"insert into @db_name.t{i} values "
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for j in range(self.childRow):
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if values == "":
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values = self.getColsValue(i, j)
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else:
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values += "," + self.getColsValue(i, j)
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# batch insert
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if j % self.batchSize == 0 and values != "":
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sql = pre_insert + values
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self.exeDouble(sql)
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values = ""
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# append last
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if values != "":
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sql = pre_insert + values
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self.exeDouble(sql)
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values = ""
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# insert nomal talbe
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for i in range(20):
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self.ts += 1000
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name = self.random_string(20)
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sql = f"insert into @db_name.ta values({self.ts}, {i}, {self.ts%100000}, '{name}', false)"
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self.exeDouble(sql)
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# insert finished
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tdLog.info(f"insert data successfully.\n"
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f" inserted child table = {self.childCnt}\n"
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f" inserted child rows = {self.childRow}\n"
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f" total inserted rows = {self.childCnt*self.childRow}\n")
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return
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def exeDouble(self, sql):
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# dbname replace
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sql1 = sql.replace("@db_name", self.db1)
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if len(sql1) > 100:
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tdLog.info(sql1[:100])
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else:
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tdLog.info(sql1)
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tdSql.execute(sql1)
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sql2 = sql.replace("@db_name", self.db2)
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if len(sql1) > 100:
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tdLog.info(sql1[:100])
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else:
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tdLog.info(sql1)
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tdSql.execute(sql2)
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# prepareEnv
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def prepareEnv(self):
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# init
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self.ts = 1680000000000
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self.childCnt = 1000
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self.childRow = 100000
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self.batchSize = 5000
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self.vgroups1 = 20
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self.vgroups2 = 20
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self.db1 = "db1"
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self.db2 = "db2"
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# total
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self.c1Cnt = 0
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self.c2Cnt = 0
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self.c2Max = None
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self.c2Min = None
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self.c2Sum = None
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# create database db
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sql = f"create database @db_name vgroups {self.vgroups1} replica 3"
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self.exeDouble(sql)
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# create super talbe st
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sql = f"create table @db_name.st(ts timestamp, c1 int, c2 bigint, ts1 timestamp) tags(area int)"
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self.exeDouble(sql)
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# create child table
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for i in range(self.childCnt):
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sql = f"create table @db_name.t{i} using @db_name.st tags({i}) "
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self.exeDouble(sql)
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# create normal table
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sql = f"create table @db_name.ta(ts timestamp, c1 int, c2 bigint, c3 binary(32), c4 bool)"
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self.exeDouble(sql)
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# insert data
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self.insertData()
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# check data correct
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def checkExpect(self, sql, expectVal):
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tdSql.query(sql)
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rowCnt = tdSql.getRows()
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for i in range(rowCnt):
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val = tdSql.getData(i,0)
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if val != expectVal:
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tdLog.exit(f"Not expect . query={val} expect={expectVal} i={i} sql={sql}")
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return False
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tdLog.info(f"check expect ok. sql={sql} expect ={expectVal} rowCnt={rowCnt}")
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return True
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# init
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def init(self, conn, logSql, replicaVar=1):
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seed = time.clock_gettime(time.CLOCK_REALTIME)
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random.seed(seed)
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self.replicaVar = int(replicaVar)
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tdLog.debug(f"start to excute {__file__}")
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tdSql.init(conn.cursor(), True)
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# check query result same
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def queryDouble(self, sql):
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# sql
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sql1 = sql.replace('@db_name', self.db1)
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tdLog.info(sql1)
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rows1 = tdSql.query(sql1)
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res1 = copy.copy(tdSql.queryResult)
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sql2 = sql.replace('@db_name', self.db2)
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tdLog.info(sql2)
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tdSql.query(sql2)
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res2 = tdSql.queryResult
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rowlen1 = len(res1)
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rowlen2 = len(res2)
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if rowlen1 != rowlen2:
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tdLog.exit(f"rowlen1={rowlen1} rowlen2={rowlen2} both not equal.")
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return False
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for i in range(rowlen1):
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row1 = res1[i]
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row2 = res2[i]
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collen1 = len(row1)
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collen2 = len(row2)
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if collen1 != collen2:
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tdLog.exit(f"collen1={collen1} collen2={collen2} both not equal.")
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return False
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for j in range(collen1):
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if row1[j] != row2[j]:
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tdLog.exit(f"col={j} col1={row1[j]} col2={row2[j]} both col not equal.")
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return False
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return True
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# check result
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def checkResult(self):
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# check vgroupid
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sql = f"select vgroup_id from information_schema.ins_vgroups where db_name='{self.db2}'"
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tdSql.query(sql)
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tdSql.checkRows(self.vgroups2)
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# check child table count same
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sql = "select table_name from information_schema.ins_tables where db_name='@db_name' order by table_name"
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self.queryDouble(sql)
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# check row value is ok
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sql = "select * from @db_name.st order by ts"
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self.queryDouble(sql)
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# where
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sql = "select *,tbname from @db_name.st where c1 < 1000 order by ts"
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self.queryDouble(sql)
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# max
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sql = "select max(c1) from @db_name.st"
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self.queryDouble(sql)
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# min
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sql = "select min(c2) from @db_name.st"
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self.queryDouble(sql)
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# sum
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sql = "select sum(c1) from @db_name.st"
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self.queryDouble(sql)
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# normal table
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# all rows
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sql = "select * from @db_name.ta"
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self.queryDouble(sql)
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# count
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sql = "select count(*) from @db_name.ta"
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self.queryDouble(sql)
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# sum
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sql = "select sum(c1) from @db_name.ta"
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self.queryDouble(sql)
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# get vgroup list
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def getVGroup(self, db_name):
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vgidList = []
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sql = f"select vgroup_id from information_schema.ins_vgroups where db_name='{db_name}'"
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res = tdSql.getResult(sql)
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rows = len(res)
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for i in range(rows):
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vgidList.append(res[i][0])
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return vgidList;
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# split vgroup on db2
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def splitVGroup(self, db_name):
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vgids = self.getVGroup(db_name)
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selid = random.choice(vgids)
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sql = f"split vgroup {selid}"
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tdLog.info(sql)
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tdSql.execute(sql)
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# wait end
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for i in range(100):
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sql ="show transactions;"
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rows = tdSql.query(sql)
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if rows == 0:
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tdLog.info("split vgroup finished.")
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return True
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#tdLog.info(f"i={i} wait split vgroup ...")
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time.sleep(1)
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tdLog.exit("split vgroup transaction is not finished after executing 50s")
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return False
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# split empty database
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def splitEmptyDB(self):
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dbName = "emptydb"
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vgNum = 2
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# create database
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sql = f"create database {dbName} vgroups {vgNum}"
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tdLog.info(sql)
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tdSql.execute(sql)
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# split vgroup
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self.splitVGroup(dbName)
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vgList = self.getVGroup(dbName)
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vgNum1 = len(vgList)
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vgNum2 = vgNum + 1
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if vgNum1 != vgNum2:
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tdLog.exit(f" vglist len={vgNum1} is not same for expect {vgNum2}")
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return
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# run
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def run(self):
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# prepare env
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self.prepareEnv()
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for i in range(10):
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# split vgroup on db2
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self.splitVGroup(self.db2)
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self.vgroups2 += 1
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# check two db query result same
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self.checkResult()
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tdLog.info(f"split vgroup i={i} passed.")
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# split empty db
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self.splitEmptyDB()
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# stop
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def stop(self):
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tdSql.close()
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tdLog.success(f"{__file__} successfully executed")
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tdCases.addLinux(__file__, TDTestCase())
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tdCases.addWindows(__file__, TDTestCase())
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