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MWL#234: Support for marking binlog events to not be replicated, and for telling slaves not to replicate events with such mark

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unknown
2011-08-11 11:38:52 +02:00
parent 51c7723eb2
commit c4d69f1775
13 changed files with 677 additions and 39 deletions
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38
client/mysqlbinlog.cc
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@ -670,6 +670,31 @@ print_use_stmt(PRINT_EVENT_INFO* pinfo, const Query_log_event *ev)
}
/**
Print "SET do_not_replicate=..." statement when needed.
Not all servers support this (only MariaDB from some version on). So we
mark the SET to only execute from the version of MariaDB that supports it,
and also only output it if we actually see events with the flag set, to not
get spurious errors on MySQL@Oracle servers of higher version that do not
support the flag.
So we start out assuming @@do_not_replicate is 0, and only output a SET
statement when it changes.
*/
static void
print_do_not_replicate_statement(PRINT_EVENT_INFO *pinfo, const Log_event *ev)
{
int cur_val;
cur_val= (ev->flags & LOG_EVENT_DO_NOT_REPLICATE_F) != 0;
if (cur_val == pinfo->do_not_replicate)
return; /* Not changed. */
fprintf(result_file, "/*!50400 SET do_not_replicate=%d*/%s\n",
cur_val, pinfo->delimiter);
pinfo->do_not_replicate= cur_val;
}
/**
Prints the given event in base64 format.
@ -802,7 +827,10 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
goto end;
}
else
{
print_do_not_replicate_statement(print_event_info, ev);
ev->print(result_file, print_event_info);
}
break;
}
@ -832,7 +860,10 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
goto end;
}
else
{
print_do_not_replicate_statement(print_event_info, ev);
ce->print(result_file, print_event_info, TRUE);
}
// If this binlog is not 3.23 ; why this test??
if (glob_description_event->binlog_version >= 3)
@ -927,6 +958,7 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
if (!shall_skip_database(exlq->db))
{
print_use_stmt(print_event_info, exlq);
print_do_not_replicate_statement(print_event_info, ev);
if (fname)
{
convert_path_to_forward_slashes(fname);
@ -1030,6 +1062,12 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
}
/* FALL THROUGH */
}
case INTVAR_EVENT:
case RAND_EVENT:
case USER_VAR_EVENT:
case XID_EVENT:
print_do_not_replicate_statement(print_event_info, ev);
/* Fall through ... */
default:
ev->print(result_file, print_event_info);
}