1IBD2SDI(1) MySQL Database System IBD2SDI(1)
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6 ibd2sdi - InnoDB utility for extracting serialized dictionary
7 information (SDI) from an InnoDB tablespace
8
10 ibd2sdi [options] file_name1 [file_name2 file_name3 ...]
11
13 ibd2sdi is a utility for extracting serialized dictionary information
14 (SDI) from InnoDB tablespace files. SDI data is present all persistent
15 InnoDB tablespace files.
16 ibd2sdi can be run on file-per-table tablespace files (*.ibd files),
18 general tablespace files (*.ibd files), system tablespace files
19 (ibdata* files), and the data dictionary tablespace (mysql.ibd). It is
20 not supported for use with temporary tablespaces or undo tablespaces.
21 ibd2sdi can be used at runtime or while the server is offline. During
23 DDL operations, ROLLBACK operations, and undo log purge operations
24 related to SDI, there may be a short interval of time when ibd2sdi
25 fails to read SDI data stored in the tablespace.
26 ibd2sdi performs an uncommitted read of SDI from the specified
28 tablespace. Redo logs and undo logs are not accessed.
29 Invoke the ibd2sdi utility like this:
31 shell> ibd2sdi [options] file_name1 [file_name2 file_name3 ...]
33 ibd2sdi supports multi-file tablespaces like the InnoDB system
35 tablespace, but it cannot be run on more than one tablespace at a time.
36 For multi-file tablespaces, specify each file:
37 shell> ibd2sdi ibdata1 ibdata2
39 The files of a multi-file tablespace must be specified in order of the
41 ascending page number. If two successive files have the same space ID,
42 the later file must start with the last page number of the previous
43 file + 1.
44 ibd2sdi outputs SDI (containing id, type, and data fields) in JSON
46 format. ibd2sdi Options
47 ibd2sdi supports the following options:
49 · --help, -h
51 Displays command-line help.
53 shell> ibd2sdi --help
55 Usage: ./ibd2sdi [-v] [-c <strict-check>] [-d <dump file name>] [-n] filename1 [filenames]
56 See http://dev.mysql.com/doc/refman/8.0/en/ibd2sdi.html for usage hints.
57 -h, --help Display this help and exit.
58 -v, --version Display version information and exit.
59 -#, --debug[=name] Output debug log. See
60 http://dev.mysql.com/doc/refman/8.0/en/dbug-package.html
61 -d, --dump-file=name
62 Dump the tablespace SDI into the file passed by user.
63 Without the filename, it will default to stdout
64 -s, --skip-data Skip retrieving data from SDI records. Retrieve only id
65 and type.
66 -i, --id=# Retrieve the SDI record matching the id passed by user.
67 -t, --type=# Retrieve the SDI records matching the type passed by
68 user.
69 -c, --strict-check=name
70 Specify the strict checksum algorithm by the user.
71 Allowed values are innodb, crc32, none.
72 -n, --no-check Ignore the checksum verification.
73 -p, --pretty Pretty format the SDI output.If false, SDI would be not
74 human readable but it will be of less size
75 (Defaults to on; use --skip-pretty to disable.)
76 Variables (--variable-name=value)
77 and boolean options {FALSE|TRUE} Value (after reading options)
78 --------------------------------- ----------------------------------------
79 debug (No default value)
80 dump-file (No default value)
81 skip-data FALSE
82 id 0
83 type 0
84 strict-check crc32
85 no-check FALSE
86 pretty TRUE
87 · --version, -v
89 Displays MySQL version information.
91 shell> ibd2sdi --version
93 ibd2sdi Ver 8.0.3-dmr for Linux on x86_64 (Source distribution)
94 · --debug[=debug_options], -# [debug_options]
96 Prints a debug log. For debug options, refer to Section 29.5.4,
98 “The DBUG Package”.
99 shell> ibd2sdi --debug=d:t /tmp/ibd2sdi.trace
101 This option is available only if MySQL was built using WITH_DEBUG.
103 MySQL release binaries provided by Oracle are not built using this
104 option.
105 · --dump-file=, -d
107 Dumps serialized dictionary information (SDI) into the specified
109 dump file. If a dump file is not specified, the tablespace SDI is
110 dumped to stdout.
111 shell> ibd2sdi --dump-file=file_name ../data/test/t1.ibd
113 · --skip-data, -s
115 Skips retrieval of data field values from the serialized dictionary
117 information (SDI) and only retrieves the id and type field values,
118 which are primary keys for SDI records.
119 shell> ibd2sdi --skip-data ../data/test/t1.ibd
121 ["ibd2sdi"
122 ,
123 {
124 "type": 1,
125 "id": 330
126 }
127 ,
128 {
129 "type": 2,
130 "id": 7
131 }
132 ]
133 · --id=#, -i #
135 Retrieves serialized dictionary information (SDI) matching the
137 specified table or tablespace object id. An object id is unique to
138 the object type. Table and tablespace object IDs are also found in
139 the id column of the mysql.tables and mysql.tablespace data
140 dictionary tables. For information about data dictionary tables,
141 see Section 14.1, “Data Dictionary Schema”.
142 shell> ibd2sdi --id=7 ../data/test/t1.ibd
144 ["ibd2sdi"
145 ,
146 {
147 "type": 2,
148 "id": 7,
149 "object":
150 {
151 "mysqld_version_id": 80003,
152 "dd_version": 80003,
153 "sdi_version": 1,
154 "dd_object_type": "Tablespace",
155 "dd_object": {
156 "name": "test/t1",
157 "comment": "",
158 "options": "",
159 "se_private_data": "flags=16417;id=2;server_version=80003;space_version=1;",
160 "engine": "InnoDB",
161 "files": [
162 {
163 "ordinal_position": 1,
164 "filename": "./test/t1.ibd",
165 "se_private_data": "id=2;"
166 }
167 ]
168 }
169 }
170 }
171 ]
172 · --type=#, -t #
174 Retrieves serialized dictionary information (SDI) matching the
176 specified object type. SDI is provided for table (type=1) and
177 tablespace (type=2) objects.
178 shell> ibd2sdi --type=2 ../data/test/t1.ibd
180 ["ibd2sdi"
181 ,
182 {
183 "type": 2,
184 "id": 7,
185 "object":
186 {
187 "mysqld_version_id": 80003,
188 "dd_version": 80003,
189 "sdi_version": 1,
190 "dd_object_type": "Tablespace",
191 "dd_object": {
192 "name": "test/t1",
193 "comment": "",
194 "options": "",
195 "se_private_data": "flags=16417;id=2;server_version=80003;space_version=1;",
196 "engine": "InnoDB",
197 "files": [
198 {
199 "ordinal_position": 1,
200 "filename": "./test/t1.ibd",
201 "se_private_data": "id=2;"
202 }
203 ]
204 }
205 }
206 }
207 ]
208 · --strict-check, -c
210 Specifies a strict checksum algorithm for validating the checksum
212 of pages that are read. Options include innodb, crc32, and none.
213 In this example, the strict version of the innodb checksum
215 algorithm is specified:
216 shell> ibd2sdi --strict-check=innodb ../data/test/t1.ibd
218 In this example, the strict version of crc32 checksum algorithm is
220 specified:
221 shell> ibd2sdi -c crc32 ../data/test/t1.ibd
223 If you do not specify the --strict-check option, validation is
225 performed against non-strict innodb, crc32 and none checksums.
226 · --no-check, -n
228 Skips checksum validation for pages that are read.
230 shell> ibd2sdi --no-check ../data/test/t1.ibd
232 · --pretty, -p
234 Outputs SDI data in JSON pretty print format. Enabled by default.
236 If disabled, SDI is not human readable but is smaller in size. Use
237 --skip-pretty to disable.
238 shell> ibd2sdi --skip-pretty ../data/test/t1.ibd
240
242 Copyright © 1997, 2020, Oracle and/or its affiliates. All rights
243 reserved.
244 This documentation is free software; you can redistribute it and/or
246 modify it only under the terms of the GNU General Public License as
247 published by the Free Software Foundation; version 2 of the License.
248 This documentation is distributed in the hope that it will be useful,
250 but WITHOUT ANY WARRANTY; without even the implied warranty of
251 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
252 General Public License for more details.
253 You should have received a copy of the GNU General Public License along
255 with the program; if not, write to the Free Software Foundation, Inc.,
256 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
257 http://www.gnu.org/licenses/.
258
261 For more information, please refer to the MySQL Reference Manual, which
262 may already be installed locally and which is also available online at
263 http://dev.mysql.com/doc/.
264
266 Oracle Corporation (http://dev.mysql.com/).
267MySQL 8.0 03/06/2020 IBD2SDI(1)