Merge 10.1 into 10.2

extra/mariabackup/xtrabackup.cc

@@ -5262,6 +5262,7 @@ xb_process_datadir(
 					    path, NULL,
 					    fileinfo.name, NULL))
 				{
+					os_file_closedir(dbdir);
 					return(FALSE);
 				}
 			}
@@ -5323,6 +5324,7 @@ xb_process_datadir(
 						    dbinfo.name,
 						    fileinfo.name, NULL))
 					{
+						os_file_closedir(dbdir);
 						return(FALSE);
 					}
 				}

mysql-test/suite/galera/disabled.def

@@ -20,9 +20,6 @@ galera_as_slave_preordered : wsrep-preordered feature not merged to MariaDB
 GAL-419 : MDEV-13549 Galera test failures
 galera_var_notify_cmd : MDEV-13549 Galera test failures
 galera_as_slave_replication_bundle : MDEV-13549 Galera test failures
-galera_gcache_recover : MDEV-13549 Galera test failures
-galera_gcache_recover_full_gcache : MDEV-13549 Galera test failures
-galera_gcache_recover_manytrx : MDEV-13549 Galera test failures
 galera_ssl_upgrade : MDEV-13549 Galera test failures
 galera.MW-329 : wsrep_local_replays not stable
 MW-416 : MDEV-13549 Galera test failures

mysql-test/suite/galera/r/galera_gcache_recover.result

 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1);
 SET SESSION wsrep_sync_wait = 0;
+connection node_2;
 SET SESSION wsrep_sync_wait = 0;
 Killing server ...
+connection node_1;
 INSERT INTO t1 VALUES (2);
 Killing server ...
+connection node_1;
 Performing --wsrep-recover ...
 Using --wsrep-start-position when starting mysqld ...
 INSERT INTO t1 VALUES (3);
+connection node_2;
 Performing --wsrep-recover ...
 Using --wsrep-start-position when starting mysqld ...
+connection node_1;
 include/diff_servers.inc [servers=1 2]
+connection node_1;
 CALL mtr.add_suppression("Skipped GCache ring buffer recovery");
 include/assert_grep.inc [async IST sender starting to serve]
+connection node_2;
 CALL mtr.add_suppression("Skipped GCache ring buffer recovery");
 include/assert_grep.inc [Recovering GCache ring buffer: found gapless sequence]
 DROP TABLE t1;

mysql-test/suite/galera/r/galera_gcache_recover_full_gcache.result

 SET SESSION wsrep_sync_wait = 0;
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY AUTO_INCREMENT, f2 LONGBLOB) ENGINE=InnoDB;
+connection node_2;
 SET SESSION wsrep_sync_wait = 0;
 Killing server ...
+connection node_1;
 INSERT INTO t1 (f2) VALUES (REPEAT('x', 1024 * 1024 * 10));
 INSERT INTO t1 (f2) VALUES (REPEAT('x', 1024 * 1024 * 10));
 INSERT INTO t1 (f2) VALUES (REPEAT('x', 1024 * 1024 * 10));
 INSERT INTO t1 (f2) VALUES (REPEAT('x', 1024 * 1024 * 10));
 INSERT INTO t1 (f2) VALUES (REPEAT('x', 1024 * 1024 * 10));
 Killing server ...
+connection node_1;
 Performing --wsrep-recover ...
 Using --wsrep-start-position when starting mysqld ...
+connection node_2;
 Performing --wsrep-recover ...
 Using --wsrep-start-position when starting mysqld ...
+connection node_1;
 include/diff_servers.inc [servers=1 2]
+connection node_1;
 DROP TABLE t1;
 CALL mtr.add_suppression("Skipped GCache ring buffer recovery");
 include/assert_grep.inc [IST first seqno 2 not found from cache, falling back to SST]
+connection node_2;
 CALL mtr.add_suppression("Skipped GCache ring buffer recovery");

storage/innobase/trx/trx0trx.cc

@@ -2738,6 +2738,12 @@ trx_get_trx_by_xid_low(
 		    && trx_state_eq(trx, TRX_STATE_PREPARED)
 			&& xid->eq((XID*)trx->xid)) {
 
+#ifdef WITH_WSREP
+			/* The commit of a prepared recovered Galera
+			transaction needs a valid trx->xid for
+			invoking trx_sys_update_wsrep_checkpoint(). */
+			if (wsrep_is_wsrep_xid(trx->xid)) break;
+#endif
 			/* Invalidate the XID, so that subsequent calls
 			will not find it. */
 			trx->xid->null();

storage/xtradb/trx/trx0trx.cc

@@ -2578,6 +2578,12 @@ trx_get_trx_by_xid_low(
 		    && memcmp(xid->data, trx->xid.data,
 			      xid->gtrid_length + xid->bqual_length) == 0) {
 
+#ifdef WITH_WSREP
+			/* The commit of a prepared recovered Galera
+			transaction needs a valid trx->xid for
+			invoking trx_sys_update_wsrep_checkpoint(). */
+			if (wsrep_is_wsrep_xid(&trx->xid)) break;
+#endif
 			/* Invalidate the XID, so that subsequent calls
 			will not find it. */
 			trx->xid.null();