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128 lines
3.6 KiB
Python
128 lines
3.6 KiB
Python
#coding:utf-8
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"""
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ID: issue-2224
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ISSUE: 2224
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TITLE: Bugcheck 165 (cannot find tip page)
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DESCRIPTION:
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Classic and SuperClassic only
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Bug can be reproduced only when FIRST of ISQL sessions is lacunhed with '-n' switch.
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Second ISQL must be started *WITHOUT* this switch!
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Absence of '-n' means that ISQL always starts two transactions (first for DML and second for DDL)
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and they both are committed at the same time for each executed statement.
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Because of this, we use here two transaction for second connection and, furthermore, we use
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the same isolation levels for them, namely: SNAPSHOT for DML and READ COMMITTED for DDL.
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This is done by using custom TPB objects with apropriate properties - see 'dml_tpb' and 'ddl_tpb'.
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Confirmed bug on 3.0.4.32972 (build date: 11-may-2018), got:
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SQLCODE: -902 / - ... consistency check (can't continue after bugcheck) / -902 / 335544333
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firebird.log will contain after this:
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internal Firebird consistency check (cannot find tip page (165), file: tra.cpp line: 2331)
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JIRA: CORE-5935
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FBTEST: bugs.core_5935
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"""
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import pytest
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from firebird.qa import *
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from firebird.driver import tpb, Isolation
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db = db_factory()
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act = python_act('db')
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@pytest.mark.version('>=3.0.5')
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def test_1(act: Action):
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# CONCURRENCY | WAIT | READ_WRITE
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dml_tpb = tpb(isolation=Isolation.CONCURRENCY)
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# READ_COMMITTED | NO_REC_VERSION | WAIT | READ_WRITE
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ddl_tpb = tpb(isolation=Isolation.READ_COMMITTED_NO_RECORD_VERSION)
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#
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with act.db.connect() as con:
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con.execute_immediate('recreate table a (id int)')
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con.commit()
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con.execute_immediate('create index idx_a on a(id)')
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con.commit()
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sql = """
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create or alter procedure p_gen_tx(n int) as
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declare i int = 0;
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begin
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while (i < n) do
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in autonomous transaction do
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i = i + 1;
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end
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"""
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con.execute_immediate(sql)
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con.commit()
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# Test
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con = act.db.connect()
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tx1a = con.transaction_manager(dml_tpb)
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tx1a.begin()
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cur1 = tx1a.cursor()
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cur1.execute('delete from a')
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tx1a.commit()
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#
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tx1a.begin()
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cur1.execute("select current_transaction, rdb$get_context('SYSTEM', 'ISOLATION_LEVEL') from rdb$database")
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cur1.fetchall()
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# ---
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con2 = act.db.connect()
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tx2a = con2.transaction_manager(dml_tpb)
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tx2b = con2.transaction_manager(ddl_tpb)
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#
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tx2a.begin()
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tx2b.begin()
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cur2 = tx2a.cursor()
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cur2.callproc('p_gen_tx', [33000])
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tx2a.commit()
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tx2b.commit()
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#
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tx2a.begin()
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tx2b.begin()
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cur2.execute('insert into a (id) values (?)', [tx2a.info.id])
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tx2a.commit()
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tx2b.commit()
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#
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tx2a.begin()
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tx2b.begin()
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cur2.execute('set statistics index idx_a')
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tx2a.commit()
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tx2b.commit()
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#
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tx2a.begin()
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tx2b.begin()
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cur2.execute('select rdb$index_name, rdb$record_version from rdb$indices where rdb$relation_name = ?', ['A'])
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cur2.fetchall()
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cur2.execute('select id from a where id > ?', [0])
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cur2.fetchall()
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tx2a.commit()
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tx2b.commit()
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#
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tx2a.begin()
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tx2b.begin()
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cur2 = tx2a.cursor()
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cur2.callproc('p_gen_tx', [33000])
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tx2a.commit()
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tx2b.commit()
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# ---
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tx1a.commit()
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# ---
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tx2a.begin()
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tx2b.begin()
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cur2.execute('select id from a where id > ?', [0])
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cur2.fetchall()
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# ---
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tx1a.begin()
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cur1.execute('select id from a where id > ?', [0])
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cur1.fetchall()
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#
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cur1.close()
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tx1a.rollback()
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con.close()
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#
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cur2.close()
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tx2a.rollback()
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tx2b.rollback()
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con2.close()
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# Passed
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