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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
|
/* Copyright (C) 2007 MySQL AB
Copyright (C) 2010 Monty Program Ab
Copyright (C) 2020 MariaDB Corporation Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#include "maria_def.h"
#include "ma_recovery.h"
#include <my_getopt.h>
#define LOG_FLAGS 0
static const char *load_default_groups[]= { "aria_read_log",0 };
static void get_options(int *argc,char * * *argv);
#ifndef DBUG_OFF
#if defined(_WIN32)
const char *default_dbug_option= "d:t:O,\\aria_read_log.trace";
#else
const char *default_dbug_option= "d:t:o,/tmp/aria_read_log.trace";
#endif
#endif /* DBUG_OFF */
static my_bool opt_display_only, opt_apply, opt_silent, opt_apply_undo;
static my_bool opt_check, opt_start_from_checkpoint;
static my_bool opt_print_aria_log_control;
static const char *opt_tmpdir;
static ulong opt_translog_buffer_size;
static ulonglong opt_page_buffer_size;
static ulonglong opt_start_from_lsn, opt_lsn_redo_end, opt_lsn_undo_end;
static char *start_from_lsn_buf, *lsn_redo_end_buf, *lsn_undo_end_buf;
static MY_TMPDIR maria_chk_tmpdir;
/*
Get lsn from file number and offset
Format supported:
ulonglong
uint,0xhex
*/
static ulonglong get_lsn(const char *lsn_str)
{
ulong file;
ulong pos;
if (sscanf(lsn_str, " %lu,0x%lx", &file, &pos) == 2)
return MAKE_LSN(file, pos);
if (sscanf(lsn_str, " %lu", &pos) == 1)
return (ulonglong) pos;
return ~(ulonglong) 0; /* Error */
}
static my_bool get_lsn_arg(const char *lsn_string, ulonglong *lsn,
const char *name)
{
ulonglong value;
value= get_lsn(lsn_string);
if (value != ~(ulonglong) 0)
{
*lsn= value;
return 0;
}
fprintf(stderr,
"Wrong value '%s' for option %s. Value should be in format: "
"number,0xhexnumber\n",
lsn_string, name);
return 1;
}
int main(int argc, char **argv)
{
LSN lsn;
char **default_argv;
uint warnings_count;
MY_INIT(argv[0]);
maria_data_root= ".";
sf_leaking_memory=1; /* don't report memory leaks on early exits */
load_defaults_or_exit("my", load_default_groups, &argc, &argv);
default_argv= argv;
get_options(&argc, &argv);
maria_in_recovery= TRUE;
if (maria_init())
{
fprintf(stderr, "Can't init Aria engine (%d)\n", errno);
goto err;
}
maria_block_size= 0; /* Use block size from file */
if (opt_print_aria_log_control)
{
if (print_aria_log_control())
goto err;
goto end;
}
/* we don't want to create a control file, it MUST exist */
if (ma_control_file_open(FALSE, TRUE, TRUE, control_file_open_flags))
{
fprintf(stderr, "Can't open control file (%d)\n", errno);
goto err;
}
if (last_logno == FILENO_IMPOSSIBLE)
{
fprintf(stderr, "Can't find any log\n");
goto err;
}
if (init_pagecache(maria_pagecache, (size_t)opt_page_buffer_size, 0, 0,
maria_block_size, 0, MY_WME) == 0)
{
fprintf(stderr, "Got error in init_pagecache() (errno: %d)\n", errno);
goto err;
}
/*
If log handler does not find the "last_logno" log it will return error,
which is good.
But if it finds a log and this log was crashed, it will create a new log,
which is useless. TODO: start log handler in read-only mode.
*/
if (init_pagecache(maria_log_pagecache, opt_translog_buffer_size,
0, 0, TRANSLOG_PAGE_SIZE, 0, MY_WME) == 0 ||
translog_init(maria_data_root, TRANSLOG_FILE_SIZE,
0, 0, maria_log_pagecache, TRANSLOG_DEFAULT_FLAGS,
opt_display_only))
{
fprintf(stderr, "Can't init loghandler (%d)\n", errno);
goto err;
}
if (opt_display_only)
printf("You are using --display-only, NOTHING will be written to disk\n");
if (translog_get_horizon() == LSN_IMPOSSIBLE)
{
fprintf(stdout, "The transaction log is empty\n");
goto end;
}
lsn= translog_first_lsn_in_log();
if (lsn == LSN_ERROR)
{
fprintf(stderr, "Opening transaction log failed\n");
goto end;
}
if (lsn == LSN_IMPOSSIBLE)
{
fprintf(stdout, "The transaction log is empty\n");
goto end;
}
if (opt_start_from_checkpoint && !opt_start_from_lsn &&
last_checkpoint_lsn != LSN_IMPOSSIBLE)
{
lsn= LSN_IMPOSSIBLE; /* LSN set in maria_apply_log() */
fprintf(stdout, "Starting from checkpoint " LSN_FMT "\n",
LSN_IN_PARTS(last_checkpoint_lsn));
}
else
fprintf(stdout, "The transaction log starts from lsn " LSN_FMT "\n",
LSN_IN_PARTS(lsn));
if (opt_start_from_lsn)
{
if (opt_start_from_lsn < (ulonglong) lsn)
{
fprintf(stderr, "start_from_lsn is too small. Aborting\n");
maria_end();
goto err;
}
lsn= (LSN) opt_start_from_lsn;
fprintf(stdout, "Starting reading log from lsn " LSN_FMT "\n",
LSN_IN_PARTS(lsn));
}
fprintf(stdout, "TRACE of the last aria_read_log\n");
if (maria_apply_log(lsn, opt_lsn_redo_end, opt_lsn_undo_end,
opt_apply ? MARIA_LOG_APPLY :
(opt_check ? MARIA_LOG_CHECK :
MARIA_LOG_DISPLAY_HEADER), opt_silent ? NULL : stdout,
FALSE, FALSE, &warnings_count))
goto err;
if (warnings_count == 0)
fprintf(stdout, "%s: SUCCESS\n", my_progname_short);
else
fprintf(stdout, "%s: DOUBTFUL (%u warnings, check previous output)\n",
my_progname_short, warnings_count);
end:
maria_end();
free_tmpdir(&maria_chk_tmpdir);
free_defaults(default_argv);
my_end(0);
sf_leaking_memory=0;
exit(0);
return 0; /* No compiler warning */
err:
/* don't touch anything more, in case we hit a bug */
fprintf(stderr, "%s: FAILED\n", my_progname_short);
free_tmpdir(&maria_chk_tmpdir);
free_defaults(default_argv);
exit(1);
}
#include "ma_check_standalone.h"
enum options_mc {
OPT_CHARSETS_DIR=256, OPT_FORCE_CRASH, OPT_TRANSLOG_BUFFER_SIZE
};
static struct my_option my_long_options[] =
{
{"apply", 'a',
"Apply log to tables: modifies tables! you should make a backup first! "
" Displays a lot of information if not run with --silent",
(uchar **) &opt_apply, (uchar **) &opt_apply, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"character-sets-dir", OPT_CHARSETS_DIR,
"Directory where character sets are.",
(char**) &charsets_dir, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"check", 'c',
"if --display-only, check if record is fully readable (for debugging)",
(uchar **) &opt_check, (uchar **) &opt_check, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#ifndef DBUG_OFF
{"debug", '#', "Output debug log. Often the argument is 'd:t:o,filename'.",
0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
{"force-crash", OPT_FORCE_CRASH, "Force crash after # recovery events",
&maria_recovery_force_crash_counter, 0,0, GET_ULONG, REQUIRED_ARG,
0, 0, ~(long) 0, 0, 0, 0},
#endif
{"help", '?', "Display this help and exit.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"display-only", 'd', "display brief info read from records' header",
&opt_display_only, &opt_display_only, 0, GET_BOOL,
NO_ARG,0, 0, 0, 0, 0, 0},
{ "end-lsn", 'e', "Alias for lsn-redo-end",
&lsn_redo_end_buf, &lsn_redo_end_buf, 0, GET_STR, REQUIRED_ARG, 0, 0,
0, 0, 0, 0 },
{ "lsn-redo-end", 'e', "Stop applying at this lsn during redo. If "
"this option is used UNDO:s will not be applied unless --lsn-undo-end is "
"given", &lsn_redo_end_buf,
&lsn_redo_end_buf, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
{ "lsn-undo-end", 'E', "Stop applying undo after this lsn has been applied",
&lsn_undo_end_buf, &lsn_undo_end_buf, 0, GET_STR, REQUIRED_ARG, 0, 0,
0, 0, 0, 0 },
{"aria-log-dir-path", 'h',
"Path to the directory where to store transactional log",
(char **) &maria_data_root, (char **) &maria_data_root, 0,
GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{ "page-buffer-size", 'P',
"The size of the buffer used for index blocks for Aria tables",
&opt_page_buffer_size, &opt_page_buffer_size, 0,
GET_ULL, REQUIRED_ARG, PAGE_BUFFER_INIT,
PAGE_BUFFER_INIT, SIZE_T_MAX, MALLOC_OVERHEAD, (long) IO_SIZE, 0},
{ "print-log-control-file", 'l',
"Print the content of the aria_log_control_file",
&opt_print_aria_log_control, &opt_print_aria_log_control, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{ "start-from-lsn", 'o', "Start reading log from this lsn",
&opt_start_from_lsn, &opt_start_from_lsn,
0, GET_ULL, REQUIRED_ARG, 0, 0, ~(longlong) 0, 0, 0, 0 },
{"start-from-checkpoint", 'C', "Start applying from last checkpoint",
&opt_start_from_checkpoint, &opt_start_from_checkpoint, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"silent", 's', "Print less information during apply/undo phase",
&opt_silent, &opt_silent, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"tables-to-redo", 'T',
"List of tables separated with , that we should apply REDO on. Use this if you only want to recover some tables",
0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"tmpdir", 't', "Path for temporary files. Multiple paths can be specified, "
"separated by "
#if defined( _WIN32)
"semicolon (;)"
#else
"colon (:)"
#endif
, (char**) &opt_tmpdir, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{ "translog-buffer-size", OPT_TRANSLOG_BUFFER_SIZE,
"The size of the buffer used for transaction log for Aria tables",
&opt_translog_buffer_size, &opt_translog_buffer_size, 0,
GET_ULONG, REQUIRED_ARG, (long) TRANSLOG_PAGECACHE_SIZE,
1024L*1024L, (long) ~(ulong) 0, (long) MALLOC_OVERHEAD,
(long) IO_SIZE, 0},
{"undo", 'u',
"Apply UNDO records to tables. (disable with --disable-undo). "
"Will be automatically set if lsn-undo-end is used",
(uchar **) &opt_apply_undo, (uchar **) &opt_apply_undo, 0,
GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
{"verbose", 'v', "Print more information during apply/undo phase",
&maria_recovery_verbose, &maria_recovery_verbose, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"version", 'V', "Print version and exit.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
static void print_version(void)
{
printf("%s Ver 1.6 for %s on %s\n",
my_progname_short, SYSTEM_TYPE, MACHINE_TYPE);
}
static void usage(void)
{
print_version();
puts("Copyright (C) 2007 MySQL AB, 2009-2011 Monty Program Ab, 2022 MariaDB Corporation");
puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,");
puts("and you are welcome to modify and redistribute it under the GPL license\n");
puts("Display or apply log records from a Aria transaction log");
puts("found in the current directory (for now)");
#ifndef IDENTICAL_PAGES_AFTER_RECOVERY
puts("\nNote: Aria is compiled without -DIDENTICAL_PAGES_AFTER_RECOVERY\n"
"which means that the table files are not byte-to-byte identical to\n"
"files created during normal execution. This should be ok, except for\n"
"test scripts that tries to compare files before and after recovery.");
#endif
printf("\nUsage: %s OPTIONS [-d | -a] -h `aria_log_directory`\n",
my_progname_short);
printf("or\n");
printf("Usage: %s OPTIONS -h `aria_log_directory` "
"--print-log-control-file\n\n",
my_progname_short);
my_print_help(my_long_options);
print_defaults("my", load_default_groups);
my_print_variables(my_long_options);
}
static uchar* my_hash_get_string(const uchar *record, size_t *length,
my_bool first __attribute__ ((unused)))
{
*length= (size_t) (strcend((const char*) record,',')- (const char*) record);
return (uchar*) record;
}
static my_bool
get_one_option(const struct my_option *opt,
const char *argument,
const char *filename __attribute__((unused)))
{
switch (opt->id) {
case '?':
usage();
exit(0);
case 'V':
print_version();
exit(0);
case 'E':
opt_apply_undo= TRUE;
break;
case 'T':
{
char *pos;
if (!my_hash_inited(&tables_to_redo))
{
my_hash_init2(PSI_INSTRUMENT_ME, &tables_to_redo, 16, &my_charset_bin,
16, 0, 0, my_hash_get_string, 0, 0, HASH_UNIQUE);
}
do
{
pos= strcend(argument, ',');
if (pos != argument) /* Skip empty strings */
my_hash_insert(&tables_to_redo, (uchar*) argument);
argument= pos+1;
} while (*(pos++));
break;
}
#ifndef DBUG_OFF
case '#':
DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
break;
#endif
}
return 0;
}
static void get_options(int *argc,char ***argv)
{
int ho_error;
my_bool need_help= 0, need_abort= 0;
if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option)))
exit(ho_error);
if (start_from_lsn_buf)
{
if (get_lsn_arg(start_from_lsn_buf, &opt_start_from_lsn,
"start-from-lsn"))
need_abort= 1;
}
if (lsn_redo_end_buf)
{
if (get_lsn_arg(lsn_redo_end_buf, &opt_lsn_redo_end,
"lsn-redo-end"))
need_abort= 1;
}
if (lsn_undo_end_buf)
{
if (get_lsn_arg(lsn_undo_end_buf, &opt_lsn_undo_end,
"lsn-undo-end"))
need_abort= 1;
}
if (!opt_apply)
opt_apply_undo= FALSE;
if (!opt_apply_undo)
opt_lsn_undo_end= LSN_MAX;
if (*argc > 0)
{
need_help= 1;
fprintf(stderr, "Too many arguments given\n");
}
if ((opt_display_only + opt_apply + opt_print_aria_log_control) != 1)
{
need_abort= 1;
fprintf(stderr,
"You must use one and only one of the options 'display-only', \n"
"'print-log-control-file' and 'apply'\n");
}
if (need_help || need_abort)
{
fflush(stderr);
if (need_help)
usage();
exit(1);
}
if (init_tmpdir(&maria_chk_tmpdir, opt_tmpdir))
exit(1);
maria_tmpdir= &maria_chk_tmpdir;
}
|