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mariadb/mysql-test/suite/binlog/r/binlog_index.result
Monty dd99780967 MDEV-34504 PURGE BINARY LOGS not working anymore 
PURGE BINARY LOGS did not always purge binary logs. This commit fixes
some of the issues and adds notifications if a binary log cannot be
purged.

User visible changes:
- 'PURGE BINARY LOG TO log_name' and 'PURGE BINARY LOGS BEFORE date'
  worked differently. 'TO' ignored 'slave_connections_needed_for_purge'
  while 'BEFORE' did not. Now both versions ignores the
  'slave_connections_needed_for_purge variable'.
- 'PURGE BINARY LOG..' commands now returns 'note' if a binary log cannot
   be deleted like
   Note 1375 Binary log 'master-bin.000004' is not purged because it is
             the current active binlog
- Automatic binary log purges, based on date or size, will write a
  note to the error log if a binary log matching the size or date
  cannot yet be deleted.
- If 'slave_connections_needed_for_purge' is set from a config or
  command line, it is set to 0 if Galera is enabled and 1 otherwise
  (old default). This ensures that automatic binary log purge works
  with Galera as before the addition of
  'slave_connections_needed_for_purge'.
  If the variable is changed to 0, a warning will be printed to the error
  log.

Code changes:
- Added THD argument to several purge_logs related functions that needed
  THD.
- Added 'interactive' options to purge_logs functions. This allowed
  me to remove testing of sql_command == SQLCOM_PURGE.
- Changed purge_logs_before_date() to first check if log is applicable
  before calling can_purge_logs(). This ensures we do not get a
  notification for logs that does not match the remove criteria.
- MYSQL_BIN_LOG::can_purge_log() will write notifications to the user
  or error log if a log cannot yet be removed.
- log_in_use() will return reason why a binary log cannot be removed.

Changes to keep code consistent:
- Moved checking of binlog_format for Galera to be after Galera is
  initialized (The old check never worked). If Galera is enabled
  we now change the binlog_format to ROW, with a warning, instead of
  aborting the server. If this change happens a warning will be printed to
  the error log.
- Print a warning if Galera or FLASHBACK changes the binlog_format
  to ROW. Before it was done silently.

Reviewed by: Sergei Golubchik <serg@mariadb.com>,
             Kristian Nielsen <knielsen@knielsen-hq.org>
2024-07-10 18:50:08 +03:00

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call mtr.add_suppression('Attempting backtrace');
call mtr.add_suppression('MYSQL_BIN_LOG::purge_logs failed to process registered files that would be purged.');
call mtr.add_suppression('MYSQL_BIN_LOG::open failed to sync the index file');
call mtr.add_suppression('Turning logging off for the whole duration of the MariaDB server process.');
call mtr.add_suppression('Could not use .*');
call mtr.add_suppression('MYSQL_BIN_LOG::purge_logs failed to clean registers before purging logs.');
flush tables;
SET @saved_dbug = @@SESSION.debug_dbug;
RESET MASTER;
flush logs;
flush logs;
flush logs;
show binary logs;
Log_name File_size
master-bin.000001 #
master-bin.000002 #
master-bin.000003 #
master-bin.000004 #
flush tables;
purge binary logs TO 'master-bin.000004';
Warnings:
Warning 1612 Being purged log master-bin.000001 was not found
*** must show a list starting from the 'TO' argument of PURGE ***
show binary logs;
Log_name File_size
master-bin.000004 #
reset master;
flush logs;
flush logs;
flush logs;
*** must be a warning master-bin.000001 was not found ***
Warnings:
Note 1375 Binary log 'master-bin.000004' is not purged because it is the current active binlog
Warning 1612 Being purged log master-bin.000001 was not found
*** must show one record, of the active binlog, left in the index file after PURGE ***
show binary logs;
Log_name File_size
master-bin.000004 #
reset master;
flush logs;
flush logs;
flush logs;
purge binary logs TO 'master-bin.000002';
ERROR HY000: Fatal error during log purge
show warnings;
Level Code Message
Warning 1377 a problem with deleting master-bin.000001; consider examining correspondence of your binlog index file to the actual binlog files
Error 1377 Fatal error during log purge
reset master;
# crash_purge_before_update_index
flush logs;
SET SESSION debug_dbug="+d,crash_purge_before_update_index";
purge binary logs TO 'master-bin.000002';
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000001
master-bin.000002
master-bin.000003
# crash_purge_non_critical_after_update_index
flush logs;
SET SESSION debug_dbug="+d,crash_purge_non_critical_after_update_index";
purge binary logs TO 'master-bin.000004';
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000004
master-bin.000005
# crash_purge_critical_after_update_index
flush logs;
SET SESSION debug_dbug="+d,crash_purge_critical_after_update_index";
purge binary logs TO 'master-bin.000006';
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
# crash_create_non_critical_before_update_index
SET SESSION debug_dbug="+d,crash_create_non_critical_before_update_index";
flush logs;
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
# crash_create_critical_before_update_index
SET SESSION debug_dbug="+d,crash_create_critical_before_update_index";
flush logs;
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
# crash_create_after_update_index
SET SESSION debug_dbug="+d,crash_create_after_update_index";
flush logs;
ERROR HY000: Lost connection to server during query
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
#
# This should put the server in unsafe state and stop
# accepting any command. If we inject a fault at this
# point and continue the execution the server crashes.
#
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
# fault_injection_registering_index
SET SESSION debug_dbug="+d,fault_injection_registering_index";
flush logs;
ERROR HY000: Can't open file: 'master-bin.000012' (errno: 1 "Operation not permitted")
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
# restart
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
master-bin.000012
# fault_injection_updating_index
SET SESSION debug_dbug="+d,fault_injection_updating_index";
flush logs;
ERROR HY000: Can't open file: 'master-bin.000013' (errno: 1 "Operation not permitted")
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
master-bin.000012
# restart
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000006
master-bin.000007
master-bin.000008
master-bin.000009
master-bin.000010
master-bin.000011
master-bin.000012
master-bin.000013
SET @@SESSION.debug_dbug = @saved_dbug;
End of tests
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