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mariadb/mysql-test/suite/innodb/r/log_file.result
Thirunarayanan Balathandayuthapani baf276e6d4 MDEV-19229 Allow innodb_undo_tablespaces to be changed after database creation 
trx_sys_t::undo_log_nonempty: Set to true if there are undo logs
to rollback and purge.

The algorithm for re-creating the undo tablespace when
trx_sys_t::undo_log_nonempty is disabled:

1) trx_sys_t::reset_page(): Reset the TRX_SYS page and assign all
rollback segment slots from 1..127 to FIL_NULL

2) Free the rollback segment header page of system tablespace
for the slots 1..127

3) Update the binlog and WSREP information in system tablespace
rollback segment header
Step (1), (2) and Step (3) should happen atomically within a
single mini-transaction.

4) srv_undo_delete_old_tablespaces(): Delete the old undo tablespaces
present in the undo log directory

5) Make checkpoint to get rid of old undo log tablespaces redo logs

6) Assign new start space id for the undo log tablespaces

7) Re-create the specified undo log tablespaces. InnoDB uses same
mtr for this one and step (6)

8) Make checkpoint again, so that server or mariabackup
can read the undo log tablespace page0 before applying
the redo logs

srv_undo_tablespaces_reinit(): Recreate the undo log tablespaces.
It does reset trx_sys page, delete the old undo tablespaces,
update the binlog offset, write set replication checkpoint
in system rollback segment page

trx_rseg_update_binlog_offset(): Added 2 new parameters to pass
binlog file name and binlog offset

trx_rseg_array_init(): Return error if the rollback segment
slot points to non-existent tablespace

srv_undo_tablespaces_init(): Added new parameter mtr
to initialize all undo tablespaces

trx_assign_rseg_low(): Allow the transaction to use the rollback
segment slots(1..127) even if InnoDB failed to change to the
requested innodb_undo_tablespaces=0

srv_start(): Override the user specified value of
innodb_undo_tablespaces variable with already existing actual
undo tablespaces

wf_incremental_process(): Detects whether TRX_SYS page has been
modified since last backup. If it is then incremental backup
fails and throws the information about taking full backup again

xb_assign_undo_space_start(): Removed the function. Because
undo001 has first undo space id value in page0

Added test case to test the scenario during startup and mariabackup
incremental process too.

Reviewed-by : Marko Mäkelä
Tested-by : Matthias Leich
2022-10-25 11:19:36 +05:30

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# Testcase for the following bugs
# Bug#16691130 - ASSERT WHEN INNODB_LOG_GROUP_HOME_DIR DOES NOT EXIST
# Bug#16418661 - CHANGING NAME IN FOR INNODB_DATA_FILE_PATH SHOULD NOT SUCCEED WITH LOG FILES
# Start mysqld without the possibility to create innodb_undo_tablespaces
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /\[ERROR\] InnoDB: Could not create undo tablespace '.*undo002'/ in mysqld.1.err
# Remove undo001,undo002,ibdata1,ibdata2,ib_logfile101
# Start mysqld with non existent innodb_log_group_home_dir
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend --innodb_log_group_home_dir=/path/to/non-existent/
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /Cannot create /path/to/non-existent/ib_logfile101/ in mysqld.1.err
# Successfully let InnoDB create tablespaces
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT COUNT(*) `1` FROM INFORMATION_SCHEMA.ENGINES
WHERE engine='innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
1
1
# Backup tmp/logfile/*
# 1. With ibdata2, Without ibdata1
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /The data file '.*ibdata1' was not found but one of the other data files '.*ibdata2' exists/ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata2
undo001
undo002
undo003
# 2. With ibdata1, without ibdata2
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /InnoDB: Tablespace size stored in header is \d+ pages, but the sum of data file sizes is \d+ pages/ in mysqld.1.err
FOUND 1 /InnoDB: Cannot start InnoDB. The tail of the system tablespace is missing/ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo001
undo002
undo003
# 3. Without ibdata1 & ibdata2
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
undo001
undo002
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /InnoDB: undo tablespace .*undo001.* exists\. Creating system tablespace with existing undo tablespaces is not supported\. Please delete all undo tablespaces before creating new system tablespace\./ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
undo001
undo002
undo003
# 4. Without ibdata*, ib_logfile* and with undo00*
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo001
undo002
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo001
undo002
undo003
# 5. Without ibdata*,ib_logfile* files & Without undo002
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo001
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo001
undo003
# 6. Without ibdata*,ib_logfile* files & Without undo001, undo002
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /undo tablespace .*undo003.* exists\. Creating system tablespace with existing undo tablespaces is not supported\. Please delete all undo tablespaces before creating new system tablespace\./ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
undo003
# 7. With ibdata files & Without undo002
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo001
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /InnoDB: Failed to open the undo tablespace/ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo001
undo003
# 8. With ibdata files & Without undo001, undo002
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 2 /InnoDB: Failed to open the undo tablespace/ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo003
# 9. Without ibdata*, without undo*
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /redo log file .*ib_logfile0.* exists\. Creating system tablespace with existing redo log file is not recommended\. Please delete redo log file before creating new system tablespace\./ in mysqld.1.err
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
# 10. With ibdata*, without ib_logfile0
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ibdata1
ibdata2
undo001
undo002
undo003
# 11. With ibdata*
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo001
undo002
undo003
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-directory=MYSQLTEST_VARDIR/tmp/log_file --innodb-undo-logs=20 --innodb-undo-tablespaces=3 --innodb-data-file-path=ibdata1:16M;ibdata2:10M:autoextend
SELECT COUNT(*) `1` FROM INFORMATION_SCHEMA.ENGINES
WHERE engine='innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
1
1
# restart
# Cleanup
bak_ib_logfile0
bak_ibdata1
bak_ibdata2
bak_undo001
bak_undo002
bak_undo003
ib_buffer_pool
ib_logfile0
ibdata1
ibdata2
undo001
undo002
undo003
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