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backporting bug@27808 fixes

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This commit is contained in:
Andrei Elkin
2009-10-01 19:44:53 +03:00
parent c676cebbea
commit d91aa57c38
62 changed files with 1127 additions and 513 deletions
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58
sql/sql_repl.cc
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@ -1266,26 +1266,27 @@ bool change_master(THD* thd, Master_info* mi)
int thread_mask;
const char* errmsg= 0;
bool need_relay_log_purge= 1;
bool ret= FALSE;
DBUG_ENTER("change_master");
lock_slave_threads(mi);
init_thread_mask(&thread_mask,mi,0 /*not inverse*/);
LEX_MASTER_INFO* lex_mi= &thd->lex->mi;
if (thread_mask) // We refuse if any slave thread is running
{
my_message(ER_SLAVE_MUST_STOP, ER(ER_SLAVE_MUST_STOP), MYF(0));
unlock_slave_threads(mi);
DBUG_RETURN(TRUE);
ret= TRUE;
goto err;
}
thd_proc_info(thd, "Changing master");
LEX_MASTER_INFO* lex_mi= &thd->lex->mi;
// TODO: see if needs re-write
if (init_master_info(mi, master_info_file, relay_log_info_file, 0,
thread_mask))
{
my_message(ER_MASTER_INFO, ER(ER_MASTER_INFO), MYF(0));
unlock_slave_threads(mi);
DBUG_RETURN(TRUE);
ret= TRUE;
goto err;
}
/*
@ -1330,6 +1331,34 @@ bool change_master(THD* thd, Master_info* mi)
mi->heartbeat_period= (float) min(SLAVE_MAX_HEARTBEAT_PERIOD,
(slave_net_timeout/2.0));
mi->received_heartbeats= LL(0); // counter lives until master is CHANGEd
/*
reset the last time server_id list if the current CHANGE MASTER
is mentioning IGNORE_SERVER_IDS= (...)
*/
if (lex_mi->repl_ignore_server_ids_opt == LEX_MASTER_INFO::LEX_MI_ENABLE)
reset_dynamic(&mi->ignore_server_ids);
for (uint i= 0; i < lex_mi->repl_ignore_server_ids.elements; i++)
{
ulong s_id;
get_dynamic(&lex_mi->repl_ignore_server_ids, (uchar*) &s_id, i);
if (s_id == ::server_id && replicate_same_server_id)
{
my_error(ER_SLAVE_IGNORE_SERVER_IDS, MYF(0), s_id);
ret= TRUE;
goto err;
}
else
{
if (bsearch((const ulong *) &s_id,
mi->ignore_server_ids.buffer,
mi->ignore_server_ids.elements, sizeof(ulong),
(int (*) (const void*, const void*))
change_master_server_id_cmp) == NULL)
insert_dynamic(&mi->ignore_server_ids, (uchar*) &s_id);
}
}
sort_dynamic(&mi->ignore_server_ids, (qsort_cmp) change_master_server_id_cmp);
if (lex_mi->ssl != LEX_MASTER_INFO::LEX_MI_UNCHANGED)
mi->ssl= (lex_mi->ssl == LEX_MASTER_INFO::LEX_MI_ENABLE);
@ -1407,8 +1436,8 @@ bool change_master(THD* thd, Master_info* mi)
if (flush_master_info(mi, 0))
{
my_error(ER_RELAY_LOG_INIT, MYF(0), "Failed to flush master info file");
unlock_slave_threads(mi);
DBUG_RETURN(TRUE);
ret= TRUE;
goto err;
}
if (need_relay_log_purge)
{
@ -1419,8 +1448,8 @@ bool change_master(THD* thd, Master_info* mi)
&errmsg))
{
my_error(ER_RELAY_LOG_FAIL, MYF(0), errmsg);
unlock_slave_threads(mi);
DBUG_RETURN(TRUE);
ret= TRUE;
goto err;
}
}
else
@ -1435,8 +1464,8 @@ bool change_master(THD* thd, Master_info* mi)
&msg, 0))
{
my_error(ER_RELAY_LOG_INIT, MYF(0), msg);
unlock_slave_threads(mi);
DBUG_RETURN(TRUE);
ret= TRUE;
goto err;
}
}
/*
@ -1473,10 +1502,13 @@ bool change_master(THD* thd, Master_info* mi)
pthread_cond_broadcast(&mi->data_cond);
pthread_mutex_unlock(&mi->rli.data_lock);
err:
unlock_slave_threads(mi);
thd_proc_info(thd, 0);
my_ok(thd);
DBUG_RETURN(FALSE);
if (ret == FALSE)
my_ok(thd);
delete_dynamic(&lex_mi->repl_ignore_server_ids); //freeing of parser-time alloc
DBUG_RETURN(ret);
}