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87 lines
2.6 KiB
Text
87 lines
2.6 KiB
Text
include/master-slave.inc
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[connection master]
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#
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# Bug #25144 "replication / binlog with view breaks".
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# Statements that used views didn't ensure that view were not modified
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# during their execution. Indeed this led to incorrect binary log with
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# statement based logging and as result to broken replication.
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#
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drop tables if exists t1, t2;
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drop view if exists v1;
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# Syncing slave with master and switching to connection 'slave'
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# Switching to connection 'master'
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create table t1 (i int);
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create table t2 (i int);
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create view v1 as select * from t1;
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# First we try to concurrently execute statement that uses view
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# and statement that drops it. We use "user" locks as means to
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# suspend execution of first statement once it opens our view.
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select get_lock("lock_bg25144", 1);
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get_lock("lock_bg25144", 1)
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1
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# Switching to connection 'master1'
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insert into v1 values (get_lock("lock_bg25144", 100));
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# Switching to connection 'master2'
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drop view v1;
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# Switching to connection 'master'
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select release_lock("lock_bg25144");
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release_lock("lock_bg25144")
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1
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# Switching to connection 'master1'
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select release_lock("lock_bg25144");
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release_lock("lock_bg25144")
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1
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# Switching to connection 'master2'
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# Switching to connection 'master'
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# Check that insertion through view did happen.
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select * from t1;
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i
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1
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# Syncing slave with master and switching to connection 'slave'
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# Check that slave was able to replicate this sequence
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# which means that we got correct binlog order.
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select * from t1;
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i
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1
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# Switching to connection 'master'
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# Now we will repeat the test by trying concurrently execute
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# statement that uses a view and statement that alters it.
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create view v1 as select * from t1;
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select get_lock("lock_bg25144", 1);
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get_lock("lock_bg25144", 1)
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1
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# Switching to connection 'master1'
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insert into v1 values (get_lock("lock_bg25144", 100));
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# Switching to connection 'master2'
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alter view v1 as select * from t2;
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# Switching to connection 'master'
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select release_lock("lock_bg25144");
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release_lock("lock_bg25144")
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1
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# Switching to connection 'master1'
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select release_lock("lock_bg25144");
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release_lock("lock_bg25144")
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1
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# Switching to connection 'master2'
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# Switching to connection 'master'
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# Second insertion should go to t1 as well.
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select * from t1;
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i
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1
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1
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select * from t2;
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i
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# Syncing slave with master and switching to connection 'slave'
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# Now let us check that statements were logged in proper order
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# So we have same result on slave.
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select * from t1;
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i
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1
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1
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select * from t2;
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i
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# Switching to connection 'master'
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drop table t1, t2;
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drop view v1;
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# Syncing slave with master and switching to connection 'slave'
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include/rpl_end.inc
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