File: maria_make_snapshot.inc

package info (click to toggle)
mariadb-10.5 1%3A10.5.23-0%2Bdeb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 712,240 kB
  • sloc: ansic: 2,158,658; cpp: 1,843,101; asm: 297,745; perl: 59,967; sh: 53,869; pascal: 38,348; java: 33,919; yacc: 19,639; python: 11,119; xml: 10,126; sql: 10,027; ruby: 8,544; makefile: 6,343; cs: 2,866; lex: 1,205; javascript: 1,037; objc: 80; tcl: 73; awk: 46; php: 22; sed: 16
file content (53 lines) | stat: -rw-r--r-- 2,599 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
# Maria helper script
# Copies table' data and index file to other directory, or back, or compares.
# The other directory looks like a database directory, so that we can
# read copies from inside mysqld, that's also why we copy the frm.

# "mms" is a namespace for Maria_Make_Snapshot

# API:
# 1) set one of
# $mms_copy : to copy table from database to spare directory
# $mms_reverse : to copy it back
# $mms_compare_physically : to compare both byte-for-byte
# 2) set $mms_tname to a string and set $mms_table_to_use to a number: tables
# will be mysqltest.$mms_tname$mms_table_to_use.
# 3) set $mms_purpose to say what this copy is for (influences the naming
# of the spare directory).

if ($mms_copy)
{
  --echo * copied $mms_tname$mms_table_to_use for $mms_purpose
  copy_file $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAD $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAD;
  copy_file $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAI $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAI;
  copy_file $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.frm $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.frm;
}

if ($mms_reverse_copy)
{
  # do not call this without flushing target table first!
  --disable_warnings
  --echo * copied $mms_tname$mms_table_to_use back for $mms_purpose
  -- error 0,1
  remove_file $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAD;
  --enable_warnings
  copy_file $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAD $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAD;
  --disable_warnings
  -- error 0,1
  remove_file $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAI;
  --enable_warnings
  copy_file $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAI $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAI;
}

if ($mms_compare_physically)
{
  # After the UNDO phase this is normally impossible
  # (UNDO execution has created new log records => pages have new LSNs).
  # So, do this only when testing REDO phase.
  # If UNDO phase, we nevertheless compare checksums
  # (see maria_verify_recovery.inc).
  --echo * compared $mms_tname$mms_table_to_use to old version
  diff_files $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAD $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAD;
# index file not yet recovered
#  diff_files $MYSQLD_DATADIR/mysqltest/$mms_tname$mms_table_to_use.MAI $MYSQLD_DATADIR/mysqltest_for_$mms_purpose/$mms_tname$mms_table_to_use.MAI;
}