firebird/firebird-qa
6
0
Fork 0
mirror of https://github.com/FirebirdSQL/firebird-qa.git synced 2025-01-22 21:43:06 +01:00
Code Issues Activity
805ef0ed38
firebird-qa/tests/bugs/core_6932_test.py

166 lines
6.3 KiB
Python
Raw Blame History

#coding:utf-8
#
# id: bugs.core_6932
# title: GTT's pages are not released while dropping it
# decription:
# We extract value of config parameter 'TempTableDirectory' in order to get directory where GTT data are stored.
# If this parameter is undefined then we query environment variables: FIREBIRD_TMP; TEMP and TMP - and stop after
# finding first non-empty value in this list. Name of this folder is stored in GTT_DIR variable.
#
# Then we create GTT and add some data in it; file 'fb_table_*' will appear in <GTT_DIR> after this.
# We have to obtain size of this file and invoke os.path.getsize(). Result will be NON-zero, despite that Windows
# 'dir' command shows that this file has size 0. We initialize list 'gtt_size_list' and save this size in it as
# 'initial' element (with index 0).
#
# After this, we make loop for <ITER_COUNT> iterations and do on each of them:
# * drop GTT;
# * create GTT (with new name);
# * add some data into just created GTT
# * get GTT file size and add it to the list for further analysis (see 'gtt_size_list.append(...)')
#
# Finally, we scan list 'gtt_size_list' (starting from 2nd element) and evaluate DIFFERENCE between size of GTT file
# that was obtained on Nth and (N-1)th iterations. MEDIAN value of this difference must be ZERO.
#
# NB-1.
# BEFOE this ticket was fixed, size of GTT grew noticeably only for the first ~10 iterations.
# This is example how size was changed (in percents):
# 26.88
# 34.92
# 12.69
# 19.84
# 11.91
# 10.64
# 14.43
# 8.40
# 7.75
# For big numbers of ITER_COUNT values quickly tend to zero.
# AFTER this fix size is changed only for 2nd iteration (and not in every measure), for ~6%.
# All rest changes (startingfrom 3rd measure) must be zero.
#
# NB-2. Test implemented for Windows only: there is no ability to get name of GTT file on Linux
# because all such files marked as deleted immediately after creation.
#
# Confirmed bug on 5.0.0.169.
# Checked on: WI-V4.0.1.2578; WI-T5.0.0.181 -- all OK.
#
#
# tracker_id: CORE-6932
# min_versions: ['4.0']
# versions: 4.0
# qmid: None
import pytest
from firebird.qa import db_factory, python_act, Action
# version: 4.0
# resources: None
substitutions_1 = []
init_script_1 = """"""
db_1 = db_factory(sql_dialect=3, init=init_script_1)
# test_script_1
#---
# import os
# import sys
# import glob
# # import fdb
#
# ITER_COUNT = 10
# FB_GTT_PATTERN = 'fb_table_*'
#
# #FB_CLNT = r'C:\\FB(cs
# bclient.dll'
# #DB_NAME = 'localhost:e50'
#
# GTT_CREATE_TABLE="recreate global temporary table gtt_%(gtt_name_idx)s(s varchar(1000) unique) on commit preserve rows"
# GTT_ADD_RECORDS="insert into gtt_%(gtt_name_idx)s select lpad('', 1000, uuid_to_char(gen_uuid())) from rdb$types,rdb$types rows 1000"
# GTT_DROP_TABLE="drop table gtt_%(gtt_prev_idx)s"
#
# #con = fdb.connect( dsn = DB_NAME, fb_library_name = FB_CLNT)
#
# cur = db_conn.cursor()
#
# GTT_DIR = ''
# cur.execute("select coalesce(rdb$config_value,'') from rdb$config where rdb$config_name = 'TempTableDirectory'")
# for r in cur:
# GTT_DIR = r[0]
# cur.close()
#
# if not GTT_DIR:
# GTT_DIR = os.environ.get("FIREBIRD_TMP", '')
#
# if not GTT_DIR:
# GTT_DIR = os.environ.get("TEMP", '')
#
# if not GTT_DIR:
# GTT_DIR = os.environ.get("TMP", '')
#
# if not GTT_DIR:
# print('### ABEND ### Could not get directory where GTT data are stored.')
# exit(1)
#
# gtt_dir_init = glob.glob( os.path.join(GTT_DIR, FB_GTT_PATTERN) )
#
# gtt_name_idx = 0
# db_conn.execute_immediate(GTT_CREATE_TABLE % locals())
# db_conn.commit()
# db_conn.execute_immediate(GTT_ADD_RECORDS % locals())
# db_conn.commit()
#
# gtt_dir_curr = glob.glob( os.path.join(GTT_DIR, FB_GTT_PATTERN) )
#
# gtt_new_file = list(set(gtt_dir_curr) - set(gtt_dir_init))[0]
#
# #print('name of GTT: ',gtt_new_file, ', size: ', os.path.getsize(gtt_new_file))
#
# gtt_size_list = [ (0,os.path.getsize(gtt_new_file)) ]
# for gtt_name_idx in range(1,ITER_COUNT):
# # print('Iter No %d' % gtt_name_idx)
# gtt_prev_idx = gtt_name_idx-1
# db_conn.execute_immediate(GTT_DROP_TABLE % locals())
# db_conn.commit()
# db_conn.execute_immediate(GTT_CREATE_TABLE % locals())
# db_conn.commit()
# db_conn.execute_immediate(GTT_ADD_RECORDS % locals())
# db_conn.commit()
# #print('size: %d' % os.path.getsize(gtt_new_file) )
# #print('---------------------')
# gtt_size_list.append( (gtt_name_idx,os.path.getsize(gtt_new_file)) )
#
# size_changes_percent_list = []
# for k in range(1,len(gtt_size_list)):
# #print(k,':', gtt_size_list[k][1], gtt_size_list[k-1][1], 100.00 * gtt_size_list[k][1] / gtt_size_list[k-1][1] - 100 )
# size_changes_percent_list.append( 100.00 * gtt_size_list[k][1] / gtt_size_list[k-1][1] - 100 )
#
# #for p in sorted(size_changes_percent_list):
# # print(p)
# #print('--------------------------------------')
#
# n = len(size_changes_percent_list)
#
# median_size_change_percent = sorted(size_changes_percent_list)[ min(n-1, int(n/2)) ]
# if median_size_change_percent == 0:
# print( 'GTT file size remains the same.' )
# else:
# print('GTT file size UNEXPECTEDLY INCREASED. Check percentage:')
# for p in size_changes_percent_list:
# # print( round(p,2) )
# print( '{:.2f}'.format(p) )
#
#---
act_1 = python_act('db_1', substitutions=substitutions_1)
expected_stdout_1 = """
GTT file size remains the same.
"""
@pytest.mark.version('>=4.0')
@pytest.mark.platform('Windows')
def test_1(act_1: Action):
pytest.fail("Test not IMPLEMENTED")
Reference in New Issue View Git Blame Copy Permalink