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MDEV-33211 : Galera SST on maria-backup causes donor node to be unresponsive

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If mariabackup with backup locks is used on SST we do not
pause and desync galera provider at all. If WSREP_MODE_BF_MARIABACKUP
case provider is paused and desync at BLOCK_COMMIT phase. In
other cases provider is paused and desync at BLOCK_DDL phase.
This commit is contained in:
Jan Lindström
2024-02-08 16:47:00 +02:00
committed by Monty
parent 5d4adeabe2
commit 41b435fea9
5 changed files with 163 additions and 33 deletions
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24
mysql-test/suite/galera/r/galera_bf_abort_mariabackup.result
View File

@@ -12,9 +12,9 @@ connection node_1;
connection node_2;
Starting server ...
connection node_1;
# Both should return FOUND 2 as we have bootstrap and SST
FOUND 2 /Desyncing and pausing the provider/ in mysqld.1.err
FOUND 2 /Resuming and resyncing the provider/ in mysqld.1.err
# Both should return NOT FOUND as we have mariabackup with backup locks
NOT FOUND /Desyncing and pausing the provider/ in mysqld.1.err
NOT FOUND /Resuming and resyncing the provider/ in mysqld.1.err
connection node_1;
SET GLOBAL wsrep_mode = "BF_ABORT_MARIABACKUP";
# Restart node_2, force SST.
@@ -25,9 +25,9 @@ connection node_2;
Starting server ...
connection node_2;
connection node_1;
# Both should return FOUND 3 as we have 1 new SST
FOUND 3 /Desyncing and pausing the provider/ in mysqld.1.err
FOUND 3 /Resuming and resyncing the provider/ in mysqld.1.err
# Both should return NOT FOUND as we have mariabackup with backup locks
NOT FOUND /Desyncing and pausing the provider/ in mysqld.1.err
NOT FOUND /Resuming and resyncing the provider/ in mysqld.1.err
SET GLOBAL wsrep_mode = "";
DROP TABLE t;
# Case 2: MariaBackup backup from node_2
@@ -46,11 +46,13 @@ SET GLOBAL wsrep_mode = "BF_ABORT_MARIABACKUP";
SELECT @@wsrep_mode;
@@wsrep_mode
BF_ABORT_MARIABACKUP
# Both should return FOUND 1 as node should not desync
FOUND 1 /Desyncing and pausing the provider/ in mysqld.2.err
FOUND 1 /Resuming and resyncing the provider/ in mysqld.2.err
# Should return FOUND 1 because only last backup does not desync
FOUND 1 /Server not desynched from group because WSREP_MODE_BF_MARIABACKUP used./ in mysqld.2.err
# Both should return FOUND 2 because both backups do desync but on different points
FOUND 2 /Desyncing and pausing the provider/ in mysqld.2.err
FOUND 2 /Resuming and resyncing the provider/ in mysqld.2.err
# Should return FOUND 1 as server did not desync at BLOCK_DDL
FOUND 1 /Server not desynched from group at BLOCK_DDL because WSREP_MODE_BF_MARIABACKUP is used./ in mysqld.2.err
# Should return FOUND 1 as server did desync and pause at BLOCK_COMMIT
FOUND 1 /Server desynched from group during BACKUP STAGE BLOCK_COMMIT./ in mysqld.2.err
SET GLOBAL wsrep_mode = "";
connection node_1;
DROP TABLE t;

15
mysql-test/suite/galera/t/galera_bf_abort_mariabackup.test
View File

@@ -13,7 +13,7 @@
CREATE TABLE t(i INT NOT NULL PRIMARY KEY) ENGINE INNODB;
INSERT INTO t VALUES(1);
#
# In default settings donor should desync
# In default settings donor should not desync
#
--echo # Restart node_2, force SST.
--connection node_2
@@ -37,7 +37,7 @@ let $restart_noprint=2;
--connection node_1
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.1.err;
--echo # Both should return FOUND 2 as we have bootstrap and SST
--echo # Both should return NOT FOUND as we have mariabackup with backup locks
let SEARCH_PATTERN = Desyncing and pausing the provider;
--source include/search_pattern_in_file.inc
let SEARCH_PATTERN = Resuming and resyncing the provider;
@@ -76,7 +76,7 @@ let $restart_noprint=2;
--connection node_1
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.1.err;
--echo # Both should return FOUND 3 as we have 1 new SST
--echo # Both should return NOT FOUND as we have mariabackup with backup locks
let SEARCH_PATTERN = Desyncing and pausing the provider;
--source include/search_pattern_in_file.inc
let SEARCH_PATTERN = Resuming and resyncing the provider;
@@ -117,13 +117,16 @@ let $targetdir=$MYSQLTEST_VARDIR/tmp/backup2;
--enable_result_log
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.2.err;
--echo # Both should return FOUND 1 as node should not desync
--echo # Both should return FOUND 2 because both backups do desync but on different points
let SEARCH_PATTERN = Desyncing and pausing the provider;
--source include/search_pattern_in_file.inc
let SEARCH_PATTERN = Resuming and resyncing the provider;
--source include/search_pattern_in_file.inc
--echo # Should return FOUND 1 because only last backup does not desync
let SEARCH_PATTERN = Server not desynched from group because WSREP_MODE_BF_MARIABACKUP used.;
--echo # Should return FOUND 1 as server did not desync at BLOCK_DDL
let SEARCH_PATTERN = Server not desynched from group at BLOCK_DDL because WSREP_MODE_BF_MARIABACKUP is used.;
--source include/search_pattern_in_file.inc
--echo # Should return FOUND 1 as server did desync and pause at BLOCK_COMMIT
let SEARCH_PATTERN = Server desynched from group during BACKUP STAGE BLOCK_COMMIT.;
--source include/search_pattern_in_file.inc
SET GLOBAL wsrep_mode = "";