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CONC-470: Support for semi synchronous replication

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Beside already supported asynchronous replication
the replication/binlog API now supports semi
synchronous replication:

If an event contains a semi synchronous indicator (0xEF)
behind status byte and acknowledgement flag is set,
mariadb_rpl_fetch() automatically sends an acknowledge
message to the connected primary server.
This commit is contained in:
Georg Richter
2021-10-09 08:26:15 +02:00
parent 52934a1c08
commit 004f9d4217
3 changed files with 159 additions and 8 deletions
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119
unittest/libmariadb/rpl_api.c
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@@ -28,10 +28,47 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "my_test.h"
#include "mariadb_rpl.h"
static int test_rpl_01(MYSQL *mysql)
static int test_rpl_async(MYSQL *my __attribute__((unused)))
{
MYSQL *mysql= mysql_init(NULL);
MYSQL_RES *result;
MYSQL_ROW row;
MARIADB_RPL_EVENT *event= NULL;
MARIADB_RPL *rpl= mariadb_rpl_init(mysql);
MARIADB_RPL *rpl;
int events= 0, rc;
SKIP_SKYSQL;
SKIP_MAXSCALE;
if (!is_mariadb)
return SKIP;
if (!my_test_connect(mysql, hostname, username,
password, schema, port, socketname, 0))
{
diag("Error: %s", mysql_error(mysql));
mysql_close(mysql);
return FAIL;
}
rc= mysql_query(mysql, "SELECT @@log_bin");
check_mysql_rc(rc, mysql);
result= mysql_store_result(mysql);
row= mysql_fetch_row(result);
if (!atoi(row[0]))
rc= SKIP;
mysql_free_result(result);
if (rc == SKIP)
{
diag("binary log disabled -> skip");
mysql_close(mysql);
return SKIP;
}
rpl = mariadb_rpl_init(mysql);
mysql_query(mysql, "SET @mariadb_slave_capability=4");
mysql_query(mysql, "SET NAMES latin1");
mysql_query(mysql, "SET @slave_gtid_strict_mode=1");
@@ -45,18 +82,90 @@ static int test_rpl_01(MYSQL *mysql)
if (mariadb_rpl_open(rpl))
return FAIL;
while((event= mariadb_rpl_fetch(rpl, event)))
/* We run rpl_api as very last test, too make sure
binary log contains > 10000 events.
*/
while((event= mariadb_rpl_fetch(rpl, event)) && events < 10000)
{
diag("event: %d\n", event->event_type);
events++;
}
mariadb_free_rpl_event(event);
mariadb_rpl_close(rpl);
mysql_close(mysql);
return OK;
}
static int test_rpl_semisync(MYSQL *my __attribute__((unused)))
{
MYSQL *mysql= mysql_init(NULL);
MYSQL_RES *result;
MYSQL_ROW row;
MARIADB_RPL_EVENT *event= NULL;
MARIADB_RPL *rpl;
int events= 0, rc;
SKIP_SKYSQL;
SKIP_MAXSCALE;
if (!is_mariadb)
return SKIP;
if (!my_test_connect(mysql, hostname, username,
password, schema, port, socketname, 0))
{
diag("Error: %s", mysql_error(mysql));
mysql_close(mysql);
return FAIL;
}
rc= mysql_query(mysql, "SELECT @@log_bin");
check_mysql_rc(rc, mysql);
result= mysql_store_result(mysql);
row= mysql_fetch_row(result);
if (!atoi(row[0]))
rc= SKIP;
mysql_free_result(result);
if (rc == SKIP)
{
diag("binary log disabled -> skip");
mysql_close(mysql);
return SKIP;
}
rpl = mariadb_rpl_init(mysql);
mysql_query(mysql, "SET @mariadb_slave_capability=4");
mysql_query(mysql, "SET NAMES latin1");
mysql_query(mysql, "SET @slave_gtid_strict_mode=1");
mysql_query(mysql, "SET @slave_gtid_ignore_duplicates=1");
mysql_query(mysql, "SET NAMES utf8");
mysql_query(mysql, "SET @master_binlog_checksum= @@global.binlog_checksum");
mysql_query(mysql, "SET @rpl_semi_sync_slave=1");
rpl->server_id= 12;
rpl->start_position= 4;
rpl->flags= MARIADB_RPL_BINLOG_SEND_ANNOTATE_ROWS;
if (mariadb_rpl_open(rpl))
return FAIL;
/* We run rpl_api as very last test, too make sure
binary log contains > 10000 events.
*/
while((event= mariadb_rpl_fetch(rpl, event)) && events < 10000)
{
events++;
}
mariadb_free_rpl_event(event);
mariadb_rpl_close(rpl);
mysql_close(mysql);
return OK;
}
struct my_tests_st my_tests[] = {
{"test_rpl_01", test_rpl_01, TEST_CONNECTION_DEFAULT, 0, NULL, NULL},
{"test_rpl_async", test_rpl_async, TEST_CONNECTION_NEW, 0, NULL, NULL},
{"test_rpl_semisync", test_rpl_semisync, TEST_CONNECTION_NEW, 0, NULL, NULL},
{NULL, NULL, 0, 0, NULL, NULL}
};