1# Maria helper script.
2# Runs recovery, compare with expected table data.
3
4# API:
5# 1) set $mms_tname to a string, and $mms_tables to a number N, the script
6# will cover tables mysqltest.$mms_tname1,...$mms_tnameN
7# 2) set $mvr_debug_option to the crash way
8# 3) set $mvr_crash_statement to the statement which will trigger a crash
9# 4) set $mvr_restore_old_snapshot to 1 if you want recovery to run on
10# an old copy of tables and of the control file, 0 for normal recovery.
11# 5) set $mms_compare_physically to 1 if you want a physical byte-for-byte
12# comparison with expected table. Checksum comparison is always done.
13# "mvr" is a namespace for Maria_Verify_Recovery
14
15connection admin;
16
17# we may do a copy-back  of tables before comparison, so save comparison
18# request made by caller:
19let $mms_compare_physically_save=$mms_compare_physically;
20let $mms_compare_physically=0;
21
22# warn mtr that mysqld is going to die and should not be restarted immediately
23#append_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
24#wait-maria_verify_recovery.inc
25#EOF
26# todo: remove this "system" and uncomment above when BUG#32296 is fixed
27system echo wait-maria_verify_recovery.inc >> $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
28
29# flush page cache and log, only log, or nothing, and kill mysqld with
30# abort().
31# When we restore an old snapshot, we could just kill mysqld nicely,
32# but that would implicitely commit all work, which the tester may
33# not want (tester may want to observe rollback happening).
34
35eval SET SESSION debug_dbug=$mvr_debug_option;
36--echo * crashing mysqld intentionally
37--error 2013
38eval $mvr_crash_statement; # this will crash (DBUG magic)
39
40if ($mvr_restore_old_snapshot)
41{
42
43  # copy snapshot made by maria_make_snapshot_for_feeding_recovery back
44  # into datadir.
45
46  let $mms_table_to_use=$mms_tables;
47  let $mms_purpose=feeding_recovery;
48  let $mms_reverse_copy=1;
49  while ($mms_table_to_use)
50  {
51    -- source include/maria_make_snapshot.inc
52    dec $mms_table_to_use;
53  }
54  let $mms_reverse_copy=0;
55
56  # also copy back control file, to force recovery to start from an early
57  # point, ignoring further checkpoints.
58  -- error 0,1
59  remove_file $MYSQLD_DATADIR/$MARIA_LOG/aria_log_control;
60  copy_file $MYSQLTEST_VARDIR/tmp/mms_for_$mms_purpose.aria_log_control $MYSQLD_DATADIR/$MARIA_LOG/aria_log_control;
61}
62
63--echo * recovery happens
64# let mtr restart mysqld (and thus execute the maria log)
65#append_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
66#restart-maria_verify_recovery.inc
67#EOF
68system echo restart-maria_verify_recovery.inc >> $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
69
70--source include/wait_until_connected_again.inc
71
72# Compare that tables of $mms_tables are identical to old.
73# We always compare with CHECKSUM TABLE, and if requested (which makes sense
74# only for testing the REDO phase, as UNDO phase generates new records so new
75# LSNs on pages.) with a physical byte-for-byte comparison.
76let $mms_table_to_use=$mms_tables;
77let $mms_purpose=comparison;
78let $mms_compare_physically=$mms_compare_physically_save;
79while ($mms_table_to_use)
80{
81  # the size of the index file is different for with/without encryption
82  --replace_result 372 <SIZE> 394 <SIZE>
83  eval check table $mms_tname$mms_table_to_use extended;
84  --echo * testing that checksum after recovery is as expected
85  let $new_checksum=`CHECKSUM TABLE $mms_tname$mms_table_to_use`;
86  let $old_checksum=`CHECKSUM TABLE mysqltest_for_$mms_purpose.$mms_tname$mms_table_to_use`;
87  # the $ text variables above are of the form "db.tablename\tchecksum",
88  # as db differs, we use substring().
89  --disable_query_log
90  eval select if(substring("$new_checksum",instr("$new_checksum",".t1")) = substring("$old_checksum",instr("$old_checksum",".t1")),"ok","failure") as "Checksum-check";
91  --enable_query_log
92  # this script may compare physically or do nothing
93  -- source include/maria_make_snapshot.inc
94  dec $mms_table_to_use;
95}
96
97connection default;
98# the effect of "use" is lost after a restart so we are back into db "test"
99use mysqltest;
100