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Merge 4.1 -> 5.0

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BitKeeper/etc/ignore:
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BitKeeper/etc/logging_ok:
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VC++Files/sql/mysqld.dsp:
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configure.in:
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include/my_global.h:
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include/mysql_com.h:
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libmysql/libmysql.c:
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libmysqld/Makefile.am:
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myisam/myisamchk.c:
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myisam/myisamdef.h:
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mysql-test/install_test_db.sh:
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mysql-test/r/func_time.result:
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mysql-test/r/mysqldump.result:
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mysql-test/r/subselect.result:
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mysql-test/r/union.result:
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scripts/make_binary_distribution.sh:
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sql/ha_berkeley.cc:
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mysql-test/t/rpl_error_ignored_table.test:
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This commit is contained in:
unknown
2004-05-07 18:52:06 +02:00
parent f3d691a970 e3211fbd6a
commit e9c1e75b48
2201 changed files with 519910 additions and 8438 deletions
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59
sql/slave.h
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@ -283,63 +283,12 @@ typedef struct st_relay_log_info
until_log_names_cmp_result= UNTIL_LOG_NAMES_CMP_UNKNOWN;
}
inline void inc_event_relay_log_pos()
inline void inc_event_relay_log_pos(ulonglong val)
{
event_relay_log_pos= future_event_relay_log_pos;
}
void inc_group_relay_log_pos(ulonglong log_pos,
bool skip_lock=0)
{
if (!skip_lock)
pthread_mutex_lock(&data_lock);
inc_event_relay_log_pos();
group_relay_log_pos= event_relay_log_pos;
strmake(group_relay_log_name,event_relay_log_name,
sizeof(group_relay_log_name)-1);
notify_group_relay_log_name_update();
/*
If the slave does not support transactions and replicates a transaction,
users should not trust group_master_log_pos (which they can display with
SHOW SLAVE STATUS or read from relay-log.info), because to compute
group_master_log_pos the slave relies on log_pos stored in the master's
binlog, but if we are in a master's transaction these positions are always
the BEGIN's one (excepted for the COMMIT), so group_master_log_pos does
not advance as it should on the non-transactional slave (it advances by
big leaps, whereas it should advance by small leaps).
*/
/*
In 4.x we used the event's len to compute the positions here. This is
wrong if the event was 3.23/4.0 and has been converted to 5.0, because
then the event's len is not what is was in the master's binlog, so this
will make a wrong group_master_log_pos (yes it's a bug in 3.23->4.0
replication: Exec_master_log_pos is wrong). Only way to solve this is to
have the original offset of the end of the event the relay log. This is
what we do in 5.0: log_pos has become "end_log_pos" (because the real use
of log_pos in 4.0 was to compute the end_log_pos; so better to store
end_log_pos instead of begin_log_pos.
If we had not done this fix here, the problem would also have appeared
when the slave and master are 5.0 but with different event length (for
example the slave is more recent than the master and features the event
UID). It would give false MASTER_POS_WAIT, false Exec_master_log_pos in
SHOW SLAVE STATUS, and so the user would do some CHANGE MASTER using this
value which would lead to badly broken replication.
Even the relay_log_pos will be corrupted in this case, because the len is
the relay log is not "val".
With the end_log_pos solution, we avoid computations involving lengthes.
*/
DBUG_PRINT("info", ("log_pos=%lld group_master_log_pos=%lld",
log_pos,group_master_log_pos));
if (log_pos) // some events (like fake Rotate) don't have log_pos
// when we are here, log_pos is the end of the event
group_master_log_pos= log_pos;
pthread_cond_broadcast(&data_cond);
if (!skip_lock)
pthread_mutex_unlock(&data_lock);
event_relay_log_pos+= val;
}
void inc_group_relay_log_pos(ulonglong val, ulonglong log_pos, bool skip_lock=0);
int wait_for_pos(THD* thd, String* log_name, longlong log_pos,
longlong timeout);
void close_temporary_tables();
@ -578,7 +527,7 @@ extern HASH replicate_do_table, replicate_ignore_table;
extern DYNAMIC_ARRAY replicate_wild_do_table, replicate_wild_ignore_table;
extern bool do_table_inited, ignore_table_inited,
wild_do_table_inited, wild_ignore_table_inited;
extern bool table_rules_on;
extern bool table_rules_on, replicate_same_server_id;
extern int disconnect_slave_event_count, abort_slave_event_count ;