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MariaDB 10 master requires MariaDB 10 slaves

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Only MariaDB 10 slaves can register to binblog server with a MariaDB 10
Master
This commit is contained in:
MassimilianoPinto
2015-05-11 11:43:21 +02:00
parent 230f88737c
commit f991e58b57
3 changed files with 30 additions and 3 deletions
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6
server/modules/include/blr.h
View File

@ -24,8 +24,9 @@
* @verbatim
* Revision History
*
* Date Who Description
* 02/04/14 Mark Riddoch Initial implementation
* Date Who Description
* 02/04/14 Mark Riddoch Initial implementation
* 11/05/15 Massimilaino Pinto Added mariadb10_compat to master and slave structs
*
* @endverbatim
*/
@ -175,6 +176,7 @@ typedef struct router_slave {
uint32_t lastEventTimestamp;/*< Last event timestamp sent */
SPINLOCK catch_lock; /*< Event catchup lock */
unsigned int cstate; /*< Catch up state */
bool mariadb10_compat;/*< MariaDB 10.0 compatibility */
SPINLOCK rses_lock; /*< Protects rses_deleted */
pthread_t pthread;
struct router_instance

1
server/modules/routing/binlog/blr.c
View File

@ -498,6 +498,7 @@ ROUTER_SLAVE *slave;
strcpy(slave->binlogfile, "unassigned");
slave->connect_time = time(0);
slave->lastEventTimestamp = 0;
slave->mariadb10_compat = false;
/**
* Add this session to the list of active sessions.

26
server/modules/routing/binlog/blr_slave.c
View File

@ -37,6 +37,7 @@
* 18/03/2015 Markus Makela Better detection of CRC32 | NONE checksum
* 19/03/2015 Massimiliano Pinto Addition of basic MariaDB 10 compatibility support
* 07/05/2015 Massimiliano Pinto Added MariaDB 10 Compatibility
* 11/05/2015 Massimiliano Pinto Only MariaDB 10 Slaves can register to binlog router with a MariaDB 10 Master
*
* @endverbatim
*/
@ -125,7 +126,27 @@ blr_slave_request(ROUTER_INSTANCE *router, ROUTER_SLAVE *slave, GWBUF *queue)
return blr_slave_query(router, slave, queue);
break;
case COM_REGISTER_SLAVE:
return blr_slave_register(router, slave, queue);
/*
* If Master is MariaDB10 don't allow registration from
* MariaDB/Mysql 5 Slaves
*/
if (router->mariadb10_compat && !slave->mariadb10_compat) {
slave->state = BLRS_ERRORED;
blr_send_custom_error(slave->dcb, 1, 0,
"MariaDB 10 Slave is required for Slave registration");
LOGIF(LE, (skygw_log_write(
LOGFILE_ERROR,
"MariaDB 10 Slave is required for Slave registration",
MYSQL_COMMAND(queue))));
dcb_close(slave->dcb);
return 1;
} else {
/* Master and Slave version OK: continue with slave registration */
return blr_slave_register(router, slave, queue);
}
break;
case COM_BINLOG_DUMP:
return blr_slave_binlog_dump(router, slave, queue);
@ -370,6 +391,9 @@ int query_len;
}
else if (strcasecmp(word, "@mariadb_slave_capability") == 0)
{
/* mariadb10 compatibility is set for the slave */
slave->mariadb10_compat=true;
free(query_text);
if (router->mariadb10_compat) {
return blr_slave_replay(router, slave, router->saved_master.mariadb10);