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
448
449
450
451
452
|
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*======
This file is part of PerconaFT.
Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
PerconaFT is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2,
as published by the Free Software Foundation.
PerconaFT 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 PerconaFT. If not, see <http://www.gnu.org/licenses/>.
----------------------------------------
PerconaFT is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License, version 3,
as published by the Free Software Foundation.
PerconaFT 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
======= */
#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
////////////////////////////////////////////////////////////////////
// ftverify - Command line tool that checks the validity of a given
// fractal tree file, one block at a time.
////////////////////////////////////////////////////////////////////
#include "portability/toku_assert.h"
#include "portability/toku_list.h"
#include "portability/toku_portability.h"
#include "ft/serialize/block_allocator.h"
#include "ft/ft-internal.h"
#include "ft/serialize/ft-serialize.h"
#include "ft/serialize/ft_layout_version.h"
#include "ft/serialize/ft_node-serialize.h"
#include "ft/node.h"
#include "ft/serialize/rbuf.h"
#include "ft/serialize/sub_block.h"
#include "util/threadpool.h"
#include <fcntl.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sysexits.h>
#include <unistd.h>
static int num_cores = 0; // cache the number of cores for the parallelization
static struct toku_thread_pool *ft_pool = NULL;
static FILE *outf;
static double pct = 0.5;
// Struct for reporting sub block stats.
struct verify_block_extra {
BLOCKNUM b;
int n_sub_blocks;
uint32_t header_length;
uint32_t calc_xsum;
uint32_t stored_xsum;
bool header_valid;
bool sub_blocks_valid;
struct sub_block_info *sub_block_results;
};
// Initialization function for the sub block stats.
static void
init_verify_block_extra(BLOCKNUM b, struct verify_block_extra *e)
{
static const struct verify_block_extra default_vbe =
{
.b = { 0 },
.n_sub_blocks = 0,
.header_length = 0,
.calc_xsum = 0,
.stored_xsum = 0,
.header_valid = true,
.sub_blocks_valid = true,
.sub_block_results = NULL
};
*e = default_vbe;
e->b = b;
}
// Reports percentage of completed blocks.
static void
report(int64_t blocks_done, int64_t blocks_failed, int64_t total_blocks)
{
int64_t blocks_per_report = llrint(pct * total_blocks / 100.0);
if (blocks_per_report < 1) {
blocks_per_report = 1;
}
if (blocks_done % blocks_per_report == 0) {
double pct_actually_done = (100.0 * blocks_done) / total_blocks;
printf("% 3.3lf%% | %" PRId64 " blocks checked, %" PRId64 " bad block(s) detected\n",
pct_actually_done, blocks_done, blocks_failed);
fflush(stdout);
}
}
// Helper function to deserialize one of the two headers for the ft
// we are checking.
static void
deserialize_headers(int fd, struct ft **h1p, struct ft **h2p)
{
struct rbuf rb_0;
struct rbuf rb_1;
uint64_t checkpoint_count_0;
uint64_t checkpoint_count_1;
LSN checkpoint_lsn_0;
LSN checkpoint_lsn_1;
uint32_t version_0, version_1;
bool h0_acceptable = false;
bool h1_acceptable = false;
int r0, r1;
int r;
{
toku_off_t header_0_off = 0;
r0 = deserialize_ft_from_fd_into_rbuf(
fd,
header_0_off,
&rb_0,
&checkpoint_count_0,
&checkpoint_lsn_0,
&version_0
);
if ((r0==0) && (checkpoint_lsn_0.lsn <= MAX_LSN.lsn)) {
h0_acceptable = true;
}
}
{
toku_off_t header_1_off = BlockAllocator::BLOCK_ALLOCATOR_HEADER_RESERVE;
r1 = deserialize_ft_from_fd_into_rbuf(
fd,
header_1_off,
&rb_1,
&checkpoint_count_1,
&checkpoint_lsn_1,
&version_1
);
if ((r1==0) && (checkpoint_lsn_1.lsn <= MAX_LSN.lsn)) {
h1_acceptable = true;
}
}
// If either header is too new, the dictionary is unreadable
if (r0 == TOKUDB_DICTIONARY_TOO_NEW || r1 == TOKUDB_DICTIONARY_TOO_NEW) {
fprintf(stderr, "This dictionary was created with a version of PerconaFT that is too new. Aborting.\n");
abort();
}
if (h0_acceptable) {
printf("Found dictionary header 1 with LSN %" PRIu64 "\n", checkpoint_lsn_0.lsn);
r = deserialize_ft_versioned(fd, &rb_0, h1p, version_0);
if (r != 0) {
printf("---Header Error----\n");
}
} else {
*h1p = NULL;
}
if (h1_acceptable) {
printf("Found dictionary header 2 with LSN %" PRIu64 "\n", checkpoint_lsn_1.lsn);
r = deserialize_ft_versioned(fd, &rb_1, h2p, version_1);
if (r != 0) {
printf("---Header Error----\n");
}
} else {
*h2p = NULL;
}
if (rb_0.buf) toku_free(rb_0.buf);
if (rb_1.buf) toku_free(rb_1.buf);
}
// Helper struct for tracking block checking progress.
struct check_block_table_extra {
int fd;
int64_t blocks_done, blocks_failed, total_blocks;
struct ft *h;
};
// Check non-upgraded (legacy) node.
// NOTE: These nodes have less checksumming than more
// recent nodes. This effectively means that we are
// skipping over these nodes.
static int
check_old_node(FTNODE node, struct rbuf *rb, int version)
{
int r = 0;
read_legacy_node_info(node, rb, version);
// For version 14 nodes, advance the buffer to the end
// and verify the checksum.
if (version == FT_FIRST_LAYOUT_VERSION_WITH_END_TO_END_CHECKSUM) {
// Advance the buffer to the end.
rb->ndone = rb->size - 4;
r = check_legacy_end_checksum(rb);
}
return r;
}
// Read, decompress, and check the given block.
static int
check_block(BLOCKNUM blocknum, int64_t UU(blocksize), int64_t UU(address), void *extra)
{
int r = 0;
int failure = 0;
struct check_block_table_extra *CAST_FROM_VOIDP(cbte, extra);
int fd = cbte->fd;
FT ft = cbte->h;
struct verify_block_extra be;
init_verify_block_extra(blocknum, &be);
// Let's read the block off of disk and fill a buffer with that
// block.
struct rbuf rb = RBUF_INITIALIZER;
read_block_from_fd_into_rbuf(fd, blocknum, ft, &rb);
// Allocate the node.
FTNODE XMALLOC(node);
initialize_ftnode(node, blocknum);
r = read_and_check_magic(&rb);
if (r == DB_BADFORMAT) {
printf(" Magic failed.\n");
failure++;
}
r = read_and_check_version(node, &rb);
if (r != 0) {
printf(" Version check failed.\n");
failure++;
}
int version = node->layout_version_read_from_disk;
////////////////////////////
// UPGRADE FORK GOES HERE //
////////////////////////////
// Check nodes before major layout changes in version 15.
// All newer versions should follow the same layout, for now.
// This predicate would need to be changed if the layout
// of the nodes on disk does indeed change in the future.
if (version < FT_FIRST_LAYOUT_VERSION_WITH_BASEMENT_NODES)
{
struct rbuf nrb;
// Use old decompression method for legacy nodes.
r = decompress_from_raw_block_into_rbuf(rb.buf, rb.size, &nrb, blocknum);
if (r != 0) {
failure++;
goto cleanup;
}
// Check the end-to-end checksum.
r = check_old_node(node, &nrb, version);
if (r != 0) {
failure++;
}
goto cleanup;
}
read_node_info(node, &rb, version);
FTNODE_DISK_DATA ndd;
allocate_and_read_partition_offsets(node, &rb, &ndd);
r = check_node_info_checksum(&rb);
if (r == TOKUDB_BAD_CHECKSUM) {
printf(" Node info checksum failed.\n");
failure++;
}
// Get the partition info sub block.
struct sub_block sb;
sub_block_init(&sb);
r = read_compressed_sub_block(&rb, &sb);
if (r != 0) {
printf(" Partition info checksum failed.\n");
failure++;
}
just_decompress_sub_block(&sb);
// If we want to inspect the data inside the partitions, we need
// to call setup_ftnode_partitions(node, bfe, true)
// <CER> TODO: Create function for this.
// Using the node info, decompress all the keys and pivots to
// detect any corruptions.
for (int i = 0; i < node->n_children; ++i) {
uint32_t curr_offset = BP_START(ndd,i);
uint32_t curr_size = BP_SIZE(ndd,i);
struct rbuf curr_rbuf = {.buf = NULL, .size = 0, .ndone = 0};
rbuf_init(&curr_rbuf, rb.buf + curr_offset, curr_size);
struct sub_block curr_sb;
sub_block_init(&curr_sb);
r = read_compressed_sub_block(&rb, &sb);
if (r != 0) {
printf(" Compressed child partition %d checksum failed.\n", i);
failure++;
}
just_decompress_sub_block(&sb);
r = verify_ftnode_sub_block(&sb);
if (r != 0) {
printf(" Uncompressed child partition %d checksum failed.\n", i);
failure++;
}
// <CER> If needed, we can print row and/or pivot info at this
// point.
}
cleanup:
// Cleanup and error incrementing.
if (failure) {
cbte->blocks_failed++;
}
cbte->blocks_done++;
if (node) {
toku_free(node);
}
// Print the status of this block to the console.
report(cbte->blocks_done, cbte->blocks_failed, cbte->total_blocks);
// We need to ALWAYS return 0 if we want to continue iterating
// through the nodes in the file.
r = 0;
return r;
}
// This calls toku_blocktable_iterate on the given block table.
// Passes our check_block() function to be called as we iterate over
// the block table. This will print any interesting failures and
// update us on our progress.
static void check_block_table(int fd, block_table *bt, struct ft *h) {
int64_t num_blocks = bt->get_blocks_in_use_unlocked();
printf("Starting verification of checkpoint containing");
printf(" %" PRId64 " blocks.\n", num_blocks);
fflush(stdout);
struct check_block_table_extra extra = { .fd = fd,
.blocks_done = 0,
.blocks_failed = 0,
.total_blocks = num_blocks,
.h = h };
int r = bt->iterate(block_table::TRANSLATION_CURRENT,
check_block,
&extra,
true,
true);
if (r != 0) {
// We can print more information here if necessary.
}
assert(extra.blocks_done == extra.total_blocks);
printf("Finished verification. ");
printf(" %" PRId64 " blocks checked,", extra.blocks_done);
printf(" %" PRId64 " bad block(s) detected\n", extra.blocks_failed);
fflush(stdout);
}
int
main(int argc, char const * const argv[])
{
// open the file
int r = 0;
int dictfd;
const char *dictfname, *outfname;
if (argc < 3 || argc > 4) {
fprintf(stderr, "%s: Invalid arguments.\n", argv[0]);
fprintf(stderr, "Usage: %s <dictionary> <logfile> [report%%]\n", argv[0]);
r = EX_USAGE;
goto exit;
}
assert(argc == 3 || argc == 4);
dictfname = argv[1];
outfname = argv[2];
if (argc == 4) {
set_errno(0);
pct = strtod(argv[3], NULL);
assert_zero(get_maybe_error_errno());
assert(pct > 0.0 && pct <= 100.0);
}
// Open the file as read-only.
dictfd = open(dictfname, O_RDONLY | O_BINARY, S_IRWXU | S_IRWXG | S_IRWXO);
if (dictfd < 0) {
perror(dictfname);
fflush(stderr);
abort();
}
outf = fopen(outfname, "w");
if (!outf) {
perror(outfname);
fflush(stderr);
abort();
}
// body of toku_ft_serialize_init();
num_cores = toku_os_get_number_active_processors();
r = toku_thread_pool_create(&ft_pool, num_cores); lazy_assert_zero(r);
assert_zero(r);
// deserialize the header(s)
struct ft *h1, *h2;
deserialize_headers(dictfd, &h1, &h2);
// walk over the block table and check blocks
if (h1) {
printf("Checking dictionary from header 1.\n");
check_block_table(dictfd, &h1->blocktable, h1);
}
if (h2) {
printf("Checking dictionary from header 2.\n");
check_block_table(dictfd, &h2->blocktable, h2);
}
if (h1 == NULL && h2 == NULL) {
printf("Both headers have a corruption and could not be used.\n");
}
toku_thread_pool_destroy(&ft_pool);
exit:
return r;
}
|