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https://github.com/FirebirdSQL/firebird-qa.git
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Added/Updated bugs\core_4337_test.py. Removed check of sweep log: sometime it can remain empty, for unknown reason (detected on 4.0.1 Classic). Added loop with check for several seconds for appearance of 2nd gfix attach - as it was initially implemented in fbt.
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zotov
parent
6ebb2e3824
commit
49c162c060
@ -68,7 +68,7 @@ substitutions = [
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('FIREBIRD.LOG:.* ERROR DURING SWEEP OF .*TEST.FDB.*', 'FIREBIRD.LOG: + ERROR DURING SWEEP OF TEST.FDB')
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]
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make_garbage = """
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init_sql = """
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set list on;
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recreate table t(
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s01 varchar(4000)
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@ -115,7 +115,7 @@ make_garbage = """
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# 16K page is neccessary ! Smaller size will cause failure with:
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# key size exceeds implementation restriction for index "T_S01"
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#
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db = db_factory(page_size=16384, init = make_garbage)
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db = db_factory(page_size=16384, init = init_sql)
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act = python_act('db', substitutions = substitutions)
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@ -143,10 +143,14 @@ def test_1(act: Action, sweep_log: Path, capsys):
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#---------------------------------------------------------------
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# How long can we wait for appearance of 'gfix' process in the mon$attachments, ms:
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# How long can we wait (milliseconds) for the FIRST appearance of 'gfix' process in mon$attachments:
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#
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MAX_WAIT_FOR_SWEEP_START_MS = 3000
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# How long we wait (milliseconds) for SECOND appearance of 'gfix' process in mon$attachments, after it was killed.
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# NOTE. If it appears then we have a BUG
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MAX_WAIT_FOR_GFIX_RESTART_MS = 3000
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sweep_attach_id = None
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sweep_reconnect = None
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# Start trace
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@ -157,7 +161,14 @@ def test_1(act: Action, sweep_log: Path, capsys):
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t1=py_dt.datetime.now()
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with con.cursor() as cur:
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ps = cur.prepare(stm)
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p_sweep = subprocess.Popen( [act.vars['gfix'], '-sweep', '-user', act.db.user, '-password', act.db.password, act.db.dsn], stdout = f_sweep_log, stderr = subprocess.STDOUT )
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p_sweep = subprocess.Popen( [act.vars['gfix'], '-sweep', '-user', act.db.user, '-password', act.db.password, act.db.dsn],
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stdout = f_sweep_log,
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stderr = subprocess.STDOUT
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)
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##########################################################################
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# LOOP-1: WAIT FOR FIRST APPEARANCE OF GFIX PROCESS IN THE MON$ATTACHMENTS
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##########################################################################
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while True:
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t2=py_dt.datetime.now()
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d1=t2-t1
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@ -176,53 +187,83 @@ def test_1(act: Action, sweep_log: Path, capsys):
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else:
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time.sleep(0.1)
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#<while True (loop for search gfix process in mon$attachments)
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#< with con.cursor() as cur
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#assert sweep_attach_id is None, f'attacment_id of SWEEP process is {sweep_attach_id}'
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assert sweep_attach_id, 'attacment_id of SWEEP process was not found.'
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# Let sweep to have some 'useful work':
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#
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time.sleep(1)
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# Now we can KILL attachment that belongs to SWEEP process, <sweep_attach_id>:
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con.execute_immediate(f'delete from mon$attachments where mon$attachment_id = {sweep_attach_id}')
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p_sweep.wait()
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f_sweep_log.close()
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con.commit()
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assert p_sweep.returncode == 1, 'p_sweep.returncode: {p_sweep.returncode}'
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##################################################################################################
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# LOOP-2: WAIT FOR POSSIBLE SECOND APPEARENCE (RECONNECT) OF GFIX. IF IT OCCURS THEN WE HAVE A BUG
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##################################################################################################
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ps = cur.prepare( stm.replace('select ', 'select /* search re-connect that could be made */ ') )
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t1=py_dt.datetime.now()
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with con.cursor() as cur:
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cur.execute( stm.replace('select ', 'select /* search re-connect that could be made */ ') )
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while True:
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t2=py_dt.datetime.now()
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d1=t2-t1
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dd = d1.seconds*1000 + d1.microseconds//1000
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if dd > MAX_WAIT_FOR_GFIX_RESTART_MS:
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# Expected: gfix reconnect was not detected for last {MAX_WAIT_FOR_GFIX_RESTART_MS} ms.
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break
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con.commit()
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cur.execute(ps)
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# Resultset now must be EMPTY. we must not find any record!
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for r in cur:
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sweep_reconnect = r[0]
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#con.commit()
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if sweep_reconnect:
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# UNEXPECTED: gfix reconnect found, with attach_id={sweep_reconnect}
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break
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else:
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time.sleep(0.1)
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assert sweep_reconnect is None, f'Found re-connect of SWEEP process, attachment: {sweep_reconnect}'
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#< with db.connect as con
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time.sleep(1) # do NOT remove otherwise log of failed sweep can remain empty
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#---------------------------------------------------------------
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# Check-1: log of sweep must contain text: 'connection shutdown':
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for line in sweep_log.read_text().splitlines():
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if line:
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print('SWEEP LOG:', line.upper())
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act.expected_stdout = 'sweep log: connection shutdown'.upper()
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act.stdout = capsys.readouterr().out
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assert act.clean_stdout == act.clean_expected_stdout
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act.reset()
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# DISABLED 25.09.2022. SWEEP log can remain empty (4.0.1.2692 Classic)
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## Check-1: log of sweep must contain text: 'connection shutdown':
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#for line in sweep_log.read_text().splitlines():
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# if line:
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# print('SWEEP LOG:', line.upper())
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#
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#act.expected_stdout = 'sweep log: connection shutdown'.upper()
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#act.stdout = capsys.readouterr().out
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#assert act.clean_stdout == act.clean_expected_stdout
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#act.reset()
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#---------------------------------------------------------------
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# Trace log
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found_sweep_failed = 0
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p_sweep_failed = re.compile( r'[.*\s+]*20\d{2}(-\d{2}){2}T\d{2}(:\d{2}){2}.\d{3,4}\s+\(.+\)\s+SWEEP_FAILED$', re.IGNORECASE)
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p_att_success = re.compile( r'[.*\s+]*20\d{2}(-\d{2}){2}T\d{2}(:\d{2}){2}.\d{3,4}\s+\(.+\)\s+ATTACH_DATABASE$', re.IGNORECASE)
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trace_expected = 'FOUND SWEEP_FAILED MESSAGE.'
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for line in act.trace_log:
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for i,line in enumerate(act.trace_log):
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if line.strip():
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if p_sweep_failed.search(line.strip()):
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print(trace_expected)
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found_sweep_failed = 1
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if found_sweep_failed == 1 and ('ATTACH_DATABASE' in line):
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print('TRACE: ATTACH DETECTED AFTER SWEEP FAILED! ')
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if found_sweep_failed == 1 and p_att_success.search(line) and i < len(act.trace_log)-2 and 'gfix' in act.trace_log[i+2].lower():
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# NB: we have to ignore "FAILED ATTACH_DATABASE".
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# It can occur in some cases.
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print('TRACE: UNEXPECTED ATTACH FOUND AFTER KILL SWEEP! CHECK LINE N {i}:')
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print('TRACE_LOG: ' + line)
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act.expected_stdout = trace_expected
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