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41bc736871
Support for galera GTID consistency thru cluster. All nodes in cluster should have same GTID for replicated events which are originating from cluster. Cluster originating commands need to contain sequential WSREP GTID seqno Ignore manual setting of gtid_seq_no=X. In master-slave scenario where master is non galera node replicated GTID is replicated and is preserved in all nodes. To have this - domain_id, server_id and seqnos should be same on all nodes. Node which bootstraps the cluster, to achieve this, sends domain_id and server_id to other nodes and this combination is used to write GTID for events that are replicated inside cluster. Cluster nodes that are executing non replicated events are going to have different GTID than replicated ones, difference will be visible in domain part of gtid. With wsrep_gtid_domain_id you can set domain_id for WSREP cluster. Functions WSREP_LAST_WRITTEN_GTID, WSREP_LAST_SEEN_GTID and WSREP_SYNC_WAIT_UPTO_GTID now works with "native" GTID format. Fixed galera tests to reflect this chances. Add variable to manually update WSREP GTID seqno in cluster Add variable to manipulate and change WSREP GTID seqno. Next command originating from cluster and on same thread will have set seqno and cluster should change their internal counter to it's value. Behavior is same as using @@gtid_seq_no for non WSREP transaction.
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
/* Copyright (C) 2015 Codership Oy <info@codership.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA. */
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#ifndef WSREP_XID_H
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#define WSREP_XID_H
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#include <my_config.h>
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#ifdef WITH_WSREP
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#include "wsrep_mysqld.h"
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#include "wsrep/gtid.hpp"
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#include "handler.h" // XID typedef
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void wsrep_xid_init(xid_t*, const wsrep::gtid&, const wsrep_server_gtid_t&);
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const wsrep::id& wsrep_xid_uuid(const XID&);
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wsrep::seqno wsrep_xid_seqno(const XID&);
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template<typename T> T wsrep_get_SE_checkpoint();
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bool wsrep_set_SE_checkpoint(const wsrep::gtid& gtid, const wsrep_server_gtid_t&);
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//void wsrep_get_SE_checkpoint(XID&); /* uncomment if needed */
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//void wsrep_set_SE_checkpoint(XID&); /* uncomment if needed */
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void wsrep_sort_xid_array(XID *array, int len);
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#endif /* WITH_WSREP */
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#endif /* WSREP_UTILS_H */
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