[#MDEV-24023] mariabackup.innodb_redo_overwrite failed in buidbot with result length mismatch

[MDEV-24023] mariabackup.innodb_redo_overwrite failed in buidbot with result length mismatch Created: 2020-10-26 Updated: 2023-11-29
Status:	Open
Project:	MariaDB Server
Component/s:	mariabackup, Tests
Affects Version/s:	10.3, 10.4, 10.5, 10.6, 10.7
Fix Version/s:	10.4, 10.5, 10.6

Type:

Bug

Priority:

Major

Reporter:

Alice Sherepa

Assignee:

Marko Mäkelä

Resolution:

Unresolved

Votes:

Labels:

not-10.8

Issue Links:

Relates
relates to	~~MDEV-14425~~	Change the InnoDB redo log format to ...	Closed

Description

mariabackup.innodb_redo_overwrite 'innodb' w3 [ fail ]

        Test ended at 2020-10-23 14:01:18

CURRENT_TEST: mariabackup.innodb_redo_overwrite

--- /usr/share/mysql-test/suite/mariabackup/innodb_redo_overwrite.result	2020-10-23 09:25:11.000000000 +0000

+++ /dev/shm/var/3/log/innodb_redo_overwrite.reject	2020-10-23 14:01:18.382601733 +0000

@@ -22,7 +22,7 @@

 INSERT INTO t SELECT * FROM t;

 INSERT INTO t SELECT * FROM t;

 # xtrabackup backup

-FOUND 1 /failed: redo log block is overwritten/ in backup.log

+NOT FOUND /failed: redo log block is overwritten/ in backup.log

 FOUND 1 /failed: redo log block checksum does not match/ in backup.log

 FOUND 1 /failed: unknown reason/ in backup.log

 DROP TABLE t;

mysqltest: Result length mismatch

Comments

Comment by Marko Mäkelä [ 2023-04-14 ]

In ~~MDEV-14425~~ (MariaDB Server 10.8), this part of the test was rewritten, because the redo log block format was changed.

Comment by Marko Mäkelä [ 2023-04-14 ]

Does this fail with newer server versions? The cross-reference does not work currently, so I cannot check it right now.

Comment by Elena Stepanova [ 2023-05-12 ]

Cross-reference works now.
It does fail on other versions, although it appears to be a rare failure.

Comment by Marko Mäkelä [ 2023-11-29 ]

Right, this does still fail, but not in 10.8 or later in this fashion, as expected. Here is the latest 10.6 failure:

10.6 72928e640e62559f4d4b82e9ff1102bb72bd5828
mariabackup.innodb_redo_overwrite 'innodb' w5 [ fail ]
Test ended at 2023-08-01 12:48:54

CURRENT_TEST: mariabackup.innodb_redo_overwrite
--- /home/buildbot/ppc64le-ubuntu-2004-debug/build/mysql-test/suite/mariabackup/innodb_redo_overwrite.result 2023-08-01 12:23:46.000000000 +0000
+++ /home/buildbot/ppc64le-ubuntu-2004-debug/build/mysql-test/suite/mariabackup/innodb_redo_overwrite.reject 2023-08-01 12:48:52.860307955 +0000
@@ -22,6 +22,6 @@
INSERT INTO t SELECT * FROM t;
INSERT INTO t SELECT * FROM t;
# xtrabackup backup
-FOUND 1 /failed: redo log block is overwritten/ in backup.log
+NOT FOUND /failed: redo log block is overwritten/ in backup.log
FOUND 1 /failed: redo log block checksum does not match/ in backup.log
DROP TABLE t;

mysqltest: Result length mismatch

Because of the extreme rarity, it may be impossible to fix this.

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