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Detect and store MariaDB GTID

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If Binlog Server is running with MariaDB 10 compatibility then the
found GTID is stored in router->mariadb_gtid
This commit is contained in:
MassimilianoPinto
2017-02-15 08:28:47 +01:00
parent 71707c8505
commit a0b599730c
5 changed files with 95 additions and 47 deletions
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16
server/modules/routing/binlogrouter/blr_slave.c
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@ -488,7 +488,7 @@ blr_slave_query(ROUTER_INSTANCE *router, ROUTER_SLAVE *slave, GWBUF *queue)
}
else if (strcmp(query_text, maxwell_binlog_row_image_query) == 0)
{
char *binlog_row_image = blr_extract_column(router->saved_master.binlog_vars, 1);
char *binlog_row_image = blr_extract_column(router->saved_master.binlog_vars, 3);
blr_slave_send_var_value(router, slave, "Value", binlog_row_image == NULL ? "" : binlog_row_image, BLR_TYPE_STRING);
MXS_FREE(binlog_row_image);
MXS_FREE(query_text);
@ -644,6 +644,20 @@ blr_slave_query(ROUTER_INSTANCE *router, ROUTER_SLAVE *slave, GWBUF *queue)
return blr_slave_send_var_value(router, slave, heading, server_id, BLR_TYPE_INT);
}
else if ((strcasecmp(word, "@@gtid_current_pos") == 0) || (strcasecmp(word, "@@global.gtid_current_pos") == 0))
{
char heading[40]; /* to ensure we match the case in query and response */
char mariadb_gtid[GTID_MAX_LEN + 1];
strcpy(heading, word);
MXS_FREE(query_text);
/* Safely get router->mariadb_gtid */
spinlock_acquire(&router->binlog_lock);
strcpy(mariadb_gtid, router->mariadb_gtid);
spinlock_release(&router->binlog_lock);
return blr_slave_send_var_value(router, slave, heading, mariadb_gtid, BLR_TYPE_STRING);
}
else if (strcasestr(word, "binlog_gtid_pos"))
{
unexpected = false;