BUG#28618 (Skipping into the middle of a group with SQL_SLAVE_SKIP_COUNTER
is possible):
When skipping the beginning of a transaction starting with BEGIN, the OPTION_BEGIN
flag was not set correctly, which caused the slave to not recognize that it was
inside a group. This patch sets the OPTION_BEGIN flag for BEGIN, COMMIT, ROLLBACK,
and XID events. It also adds checks if inside a group before decreasing the
slave skip counter to zero.
Begin_query_log_event was not marked that it could not end a group, which is now
corrected.
mysql-test/extra/rpl_tests/rpl_extraSlave_Col.test:
Correcting slave skip counter to get the correct behaviour.
mysql-test/suite/rpl/r/rpl_slave_skip.result:
Result change.
mysql-test/suite/rpl/t/rpl_slave_skip.test:
Adding tests to check that skipping works for transactions:
- Skipping one group with BEGIN first
- Skipping two groups with BEGIN first
- Skipping one group without BEGIN first but with AUTOCOMMIT=0
- LOAD DATA INFILE under statement-based replication
mysql-test/suite/rpl_ndb/r/rpl_ndb_extraCol.result:
Result change.
sql/log_event.cc:
Adding checks if we're in a group when the slave skip counter is 1.
In that case, we should keep going.
Adding helping member function Log_event::continue_group() denoting
that this event cannot end a group, and if the skip counter indicates
that the group ends after this event, it should not decrease the skip
counter.
Query_log_event will change the OPTION_BEGIN flag for BEGIN, COMMIT, and
ROLLBACK, even when skipping because of a positive skip count, and
Xid_log_event will also affect the OPTION_BEGIN flag, even when being
skipped.
Begin_load_query_log_event cannot end a group, so it is marked to
continue the group.
sql/log_event.h:
Adding helper function Log_event::continue_group().
sql/rpl_rli.h:
Adding Relay_log_info::get_flag() to get the value of a
replication flag.
sql/slave.cc:
Adding debug output and changing debug message.
mysql-test/suite/rpl/data/rpl_bug28618.dat:
New BitKeeper file ``mysql-test/suite/rpl/data/rpl_bug28618.dat''
mysql-test/suite/rpl/t/rpl_slave_skip-slave.opt:
New BitKeeper file ``mysql-test/suite/rpl/t/rpl_slave_skip-slave.opt''
2007-10-19 14:18:41 +02:00
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1|master only
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