mirror of
https://github.com/FirebirdSQL/firebird-qa.git
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275 lines
8.3 KiB
Python
275 lines
8.3 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_6379
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# title: Bugcheck 179
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# decription:
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# Could not reproduce with scenario described in the ticket.
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# Test uses steps described by letter from me to Vlad, date: 15-JUL-2020 10:53 (subj: "read consistency tests").
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# Scripts for initial test can be found here:
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# https://drive.google.com/drive/folders/1CEOSVfOMHzlZ1F3Gi0Jv3TEbvWLs9DPR?usp=sharing
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#
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# Reproduced problem on 4.0.0.2108 SS:
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# 1. Content of firebird.log:
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# deadlock
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# update conflicts with concurrent update
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# concurrent transaction number is 12
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# internal Firebird consistency check (wrong record version (185), file: Savepoint.cpp line: 267)
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# 2. Client gets:
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# Statement failed, SQLSTATE 08006
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# Error reading data from the connection.
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#
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# Statement failed, SQLSTATE 08006
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# Error writing data to the connection.
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# -send_packet/send
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#
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# Checked on 4.0.0.2170 SS/CS - all fine.
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#
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# tracker_id:
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# min_versions: ['4.0']
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# versions: 4.0
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# qmid:
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import pytest
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import subprocess
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import time
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from pathlib import Path
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from firebird.qa import db_factory, python_act, Action, temp_file
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# version: 4.0
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# resources: None
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substitutions_1 = [('=', ''), ('[ \t]+', ' ')]
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init_script_1 = """
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set echo on ;
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set bail on ;
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create table test(id int generated by default as identity, x int, s varchar(32765) ) ;
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set term ^ ;
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execute block as
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declare n_limit int = 1000 ;
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declare i int = 1 ;
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begin
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rdb$set_context('USER_SESSION', 'N_LIMIT', n_limit) ;
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while (i <= n_limit) do
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begin
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insert into test (x, s) values (0, lpad('', 32700, uuid_to_char(gen_uuid()))) ;
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i = i + 1 ;
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end
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end ^
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set term ^ ;
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commit ;
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delete from test order by id rows (cast(rdb$get_context('USER_SESSION', 'N_LIMIT') as int) - 13) ;
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commit ;
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"""
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db_1 = db_factory(sql_dialect=3) # We run init_script_1 manually
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# test_script_1
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#---
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#
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# import os
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# import sys
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# import subprocess
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# from subprocess import Popen
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# from fdb import services
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# import time
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#
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# os.environ["ISC_USER"] = user_name
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# os.environ["ISC_PASSWORD"] = user_password
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#
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# db_conn.close()
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#
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# #--------------------------------------------
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#
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# def flush_and_close( file_handle ):
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# # https://docs.python.org/2/library/os.html#os.fsync
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# # If you're starting with a Python file object f,
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# # first do f.flush(), and
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# # then do os.fsync(f.fileno()), to ensure that all internal buffers associated with f are written to disk.
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# global os
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#
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# file_handle.flush()
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# if file_handle.mode not in ('r', 'rb') and file_handle.name != os.devnull:
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# # otherwise: "OSError: [Errno 9] Bad file descriptor"!
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# os.fsync(file_handle.fileno())
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# file_handle.close()
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#
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# #--------------------------------------------
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#
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# def cleanup( f_names_list ):
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# global os
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# for f in f_names_list:
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# if type(f) == file:
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# del_name = f.name
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# elif type(f) == str:
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# del_name = f
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# else:
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# print('Unrecognized type of element:', f, ' - can not be treated as file.')
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# del_name = None
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#
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# if del_name and os.path.isfile( del_name ):
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# os.remove( del_name )
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#
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# #--------------------------------------------
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#
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# sql_init='''
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# create table test(id int generated by default as identity, x int, s varchar(32765) );
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# set term ^;
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# execute block as
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# declare n_limit int = 1000;
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# declare i int = 1;
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# begin
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# rdb$set_context('USER_SESSION', 'N_LIMIT', n_limit);
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# while (i <= n_limit) do
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# begin
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# insert into test(x, s) values(0, lpad('', 32765, gen_uuid()));
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# i = i + 1;
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# end
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# end
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# ^
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# set term ^;
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# commit;
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#
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# delete from test order by id rows ( cast( rdb$get_context('USER_SESSION', 'N_LIMIT') as int) - 13 );
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# commit;
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# '''
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# runProgram('isql', [ dsn, '-q' ], sql_init)
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#
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# con_lock_1 = fdb.connect( dsn = dsn )
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# con_lock_2 = fdb.connect( dsn = dsn )
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#
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#
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# #########################
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# ### L O C K E R - 1 ###
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# #########################
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# con_lock_1.execute_immediate( 'update test set x = -1111 order by id rows 6 to 6' )
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#
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#
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# # Scenario for WORKER:
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# ######################
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# sql_text='''
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# connect '%(dsn)s';
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# set autoddl off;
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# commit;
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# set transaction read committed read consistency;
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# set count on;
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#
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# set bail on;
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# delete from test;
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#
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# set heading on;
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# select rdb$db_key, id, x from test order by rdb$db_key;
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# ''' % dict(globals(), **locals())
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#
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# f_worker_sql=open( os.path.join(context['temp_directory'],'tmp_6379.sql'), 'w')
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# f_worker_sql.write(sql_text)
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# flush_and_close(f_worker_sql)
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#
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# f_worker_log=open( ''.join( ( os.path.splitext(f_worker_sql.name)[0], '.log') ), 'w')
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# f_worker_err=open( ''.join( ( os.path.splitext(f_worker_log.name)[0], '.err') ), 'w')
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#
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# ############################################################################
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# ### L A U N C H W O R K E R U S I N G I S Q L, A S Y N C. ###
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# ############################################################################
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#
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# p_worker = Popen( [ context['isql_path'], '-pag', '9999', '-q', '-i', f_worker_sql.name ],stdout=f_worker_log, stderr=f_worker_err)
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# time.sleep(1)
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#
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# #########################
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# ### L O C K E R - 2 ###
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# #########################
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# con_lock_2.execute_immediate( 'insert into test(x) values(3333)' )
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# con_lock_2.commit()
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#
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#
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# #########################
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# ### L O C K E R - 1 ###
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# #########################
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# con_lock_1.commit()
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# con_lock_2.commit()
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#
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# # Here we wait for ISQL complete its mission:
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# p_worker.wait()
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#
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# flush_and_close(f_worker_log)
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# flush_and_close(f_worker_err)
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#
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# # Close lockers:
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# ################
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# for c in (con_lock_1, con_lock_2):
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# c.close()
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#
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#
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# # CHECK RESULTS
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# ###############
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# with open(f_worker_log.name,'r') as f:
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# for line in f:
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# print(line)
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#
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# with open(f_worker_err.name,'r') as g:
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# for line in g:
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# if line:
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# print( 'UNEXPECTED STDERR IN ' + g.name + ':' + line)
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#
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#
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# # Cleanup.
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# ##########
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# time.sleep(1)
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# cleanup( (f_worker_sql, f_worker_log, f_worker_err) )
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#
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#
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#---
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act_1 = python_act('db_1', substitutions=substitutions_1)
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expected_stdout_1 = """
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Records affected: 14
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Records affected: 0
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"""
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worker_script = temp_file('core_6379.sql')
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worker_output = temp_file('core_6379.out')
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@pytest.mark.version('>=4.0')
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def test_1(act_1: Action, worker_script: Path, worker_output: Path):
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worker_script.write_text("""
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set autoddl off;
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commit;
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set transaction read committed read consistency;
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set count on;
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set bail on;
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delete from test;
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set heading on;
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select rdb$db_key, id, x from test order by rdb$db_key;
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""")
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# Run init_script
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act_1.isql(switches=[], input=init_script_1)
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#
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with act_1.db.connect() as con_lock_1, act_1.db.connect() as con_lock_2:
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# Locker 1
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con_lock_1.execute_immediate('update test set x = -1111 order by id rows 6 to 6')
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# Scenario for WORKER
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with open(worker_output, mode='w') as worker_out:
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p_worker_sql = subprocess.Popen([act_1.vars['isql'], '-pag', '9999', '-q',
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'-i', str(worker_script),
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'-user', act_1.db.user,
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'-password', act_1.db.password, act_1.db.dsn],
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stdout=worker_out, stderr=subprocess.STDOUT)
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try:
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time.sleep(2)
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# Locker 2
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con_lock_2.execute_immediate('insert into test (x) values (3333)')
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con_lock_2.commit()
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# Locker 1
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con_lock_1.commit()
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finally:
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# Here we wait for ISQL complete its mission
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p_worker_sql.wait()
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# Check
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act_1.expected_stdout = expected_stdout_1
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act_1.stdout = worker_output.read_text()
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assert act_1.clean_stdout == act_1.clean_expected_stdout
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