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MYSQLBINLOG(1)		     MySQL Database System		MYSQLBINLOG(1)

NAME
       mysqlbinlog - utility for processing binary log files

SYNOPSIS
       mysqlbinlog [options] log_file ...

DESCRIPTION
       The binary log files that the server generates are written in binary
       format. To examine these files in text format, use the mysqlbinlog
       utility.

       Invoke mysqlbinlog like this:

       shell> mysqlbinlog [options] log_file ...

       For example, to display the contents of the binary log file named
       binlog.000003, use this command:

       shell> mysqlbinlog binlog.0000003

       The output includes all events contained in binlog.000003. Event
       information includes the statement executed, the time the statement
       took, the thread ID of the client that issued it, the timestamp when it
       was executed, and so forth.

       The output from mysqlbinlog can be re-executed (for example, by using
       it as input to mysql) to reapply the statements in the log. This is
       useful for recovery operations after a server crash. For other usage
       examples, see the discussion later in this section.

       Normally, you use mysqlbinlog to read binary log files directly and
       apply them to the local MySQL server. It is also possible to read
       binary logs from a remote server by using the --read-from-remote-server
       option. When you read remote binary logs, the connection parameter
       options can be given to indicate how to connect to the server. These
       options are --host, --password, --port, --protocol, --socket, and
       --user; they are ignored except when you also use the
       --read-from-remote-server option.

       You can also use mysqlbinlog to read relay log files written by a slave
       server in a replication setup. Relay logs have the same format as
       binary log files.

       Binary logs and relay logs are discussed further in Section 10.3, “The
       Binary Log”, and Section 3.4, “Replication Relay and Status Files”.
       further.

       mysqlbinlog supports the following options:

       ·  --help, -?

	  Display a help message and exit.

       ·  --character-sets-dir=path

	  The directory where character sets are installed. See Section 9.1,
	  “The Character Set Used for Data and Sorting”.

       ·  --database=db_name, -d db_name

	  List entries for just this database (local log only).

       ·  --debug[=debug_options], -# [debug_options]

	  Write a debugging log. A typical debug_options string is often
	  ´d:t:o,file_name'.

       ·  --disable-log-bin, -D

	  Disable binary logging. This is useful for avoiding an endless loop
	  if you use the --to-last-log option and are sending the output to
	  the same MySQL server. This option also is useful when restoring
	  after a crash to avoid duplication of the statements you have
	  logged.

	  This option requires that you have the SUPER privilege. It causes
	  mysqlbinlog to include a SET SQL_LOG_BIN=0 statement in its output
	  to disable binary logging of the remaining output. The SET statement
	  is ineffective unless you have the SUPER privilege.

       ·  --force-read, -f

	  With this option, if mysqlbinlog reads a binary log event that it
	  does not recognize, it prints a warning, ignores the event, and
	  continues. Without this option, mysqlbinlog stops if it reads such
	  an event.

       ·  --hexdump, -H

	  Display a hex dump of the log in comments. This output can be
	  helpful for replication debugging. Hex dump format is discussed
	  later in this section. This option was added in MySQL 5.0.16.

       ·  --host=host_name, -h host_name

	  Get the binary log from the MySQL server on the given host.

       ·  --local-load=path, -l path

	  Prepare local temporary files for LOAD DATA INFILE in the specified
	  directory.

       ·  --offset=N, -o N

	  Skip the first N entries in the log.

       ·  --password[=password], -p[password]

	  The password to use when connecting to the server. If you use the
	  short option form (-p), you cannot have a space between the option
	  and the password. If you omit the password value following the
	  --password or -p option on the command line, you are prompted for
	  one.

	  Specifying a password on the command line should be considered
	  insecure. See Section 7.6, “Keeping Your Password Secure”.

       ·  --port=port_num, -P port_num

	  The TCP/IP port number to use for connecting to a remote server.

       ·  --position=N, -j N

	  Deprecated. Use --start-position instead.

       ·  --protocol={TCP|SOCKET|PIPE|MEMORY}

	  The connection protocol to use.

       ·  --read-from-remote-server, -R

	  Read the binary log from a MySQL server rather than reading a local
	  log file. Any connection parameter options are ignored unless this
	  option is given as well. These options are --host, --password,
	  --port, --protocol, --socket, and --user.

       ·  --result-file=name, -r name

	  Direct output to the given file.

       ·  --short-form, -s

	  Display only the statements contained in the log, without any extra
	  information.

       ·  --socket=path, -S path

	  For connections to localhost, the Unix socket file to use, or, on
	  Windows, the name of the named pipe to use.

       ·  --start-datetime=datetime

	  Start reading the binary log at the first event having a timestamp
	  equal to or later than the datetime argument. The datetime value is
	  relative to the local time zone on the machine where you run
	  mysqlbinlog. The value should be in a format accepted for the
	  DATETIME or TIMESTAMP data types. For example:

	  shell> mysqlbinlog --start-datetime="2005-12-25 11:25:56" binlog.000003
	  This option is useful for point-in-time recovery. See Section 8.2,
	  “Example Backup and Recovery Strategy”.

       ·  --stop-datetime=datetime

	  Stop reading the binary log at the first event having a timestamp
	  equal or posterior to the datetime argument. This option is useful
	  for point-in-time recovery. See the description of the
	  --start-datetime option for information about the datetime value.

       ·  --start-position=N

	  Start reading the binary log at the first event having a position
	  equal to the N argument.

       ·  --stop-position=N

	  Stop reading the binary log at the first event having a position
	  equal or greater than the N argument.

       ·  --to-last-log, -t

	  Do not stop at the end of the requested binary log from a MySQL
	  server, but rather continue printing until the end of the last
	  binary log. If you send the output to the same MySQL server, this
	  may lead to an endless loop. This option requires
	  --read-from-remote-server.

       ·  --user=user_name, -u user_name

	  The MySQL username to use when connecting to a remote server.

       ·  --version, -V

	  Display version information and exit.

       You can also set the following variable by using --var_name=value
       syntax:

       ·  open_files_limit

	  Specify the number of open file descriptors to reserve.

       It is also possible to set variables by using
       --set-variable=var_name=value or -O var_name=value syntax.  This syntax
       is deprecated.

       You can pipe the output of mysqlbinlog into the mysql client to execute
       the statements contained in the binary log. This is used to recover
       from a crash when you have an old backup (see Section 8.1, “Database
       Backups”). For example:

       shell> mysqlbinlog binlog.000001 | mysql

       Or:

       shell> mysqlbinlog binlog.[0-9]* | mysql

       You can also redirect the output of mysqlbinlog to a text file instead,
       if you need to modify the statement log first (for example, to remove
       statements that you do not want to execute for some reason). After
       editing the file, execute the statements that it contains by using it
       as input to the mysql program.

       mysqlbinlog has the --start-position option, which prints only those
       statements with an offset in the binary log greater than or equal to a
       given position (the given position must match the start of one event).
       It also has options to stop and start when it sees an event with a
       given date and time. This enables you to perform point-in-time recovery
       using the --stop-datetime option (to be able to say, for example, “roll
       forward my databases to how they were today at 10:30 a.m.”).

       If you have more than one binary log to execute on the MySQL server,
       the safe method is to process them all using a single connection to the
       server. Here is an example that demonstrates what may be unsafe:

       shell> mysqlbinlog binlog.000001 | mysql # DANGER!!
       shell> mysqlbinlog binlog.000002 | mysql # DANGER!!

       Processing binary logs this way using different connections to the
       server causes problems if the first log file contains a CREATE
       TEMPORARY TABLE statement and the second log contains a statement that
       uses the temporary table. When the first mysql process terminates, the
       server drops the temporary table. When the second mysql process
       attempts to use the table, the server reports “unknown table.”

       To avoid problems like this, use a single connection to execute the
       contents of all binary logs that you want to process. Here is one way
       to do so:

       shell> mysqlbinlog binlog.000001 binlog.000002 | mysql

       Another approach is to write all the logs to a single file and then
       process the file:

       shell> mysqlbinlog binlog.000001 >  /tmp/statements.sql
       shell> mysqlbinlog binlog.000002 >> /tmp/statements.sql
       shell> mysql -e "source /tmp/statements.sql"

       mysqlbinlog can produce output that reproduces a LOAD DATA INFILE
       operation without the original data file.  mysqlbinlog copies the data
       to a temporary file and writes a LOAD DATA LOCAL INFILE statement that
       refers to the file. The default location of the directory where these
       files are written is system-specific. To specify a directory
       explicitly, use the --local-load option.

       Because mysqlbinlog converts LOAD DATA INFILE statements to LOAD DATA
       LOCAL INFILE statements (that is, it adds LOCAL), both the client and
       the server that you use to process the statements must be configured to
       allow LOCAL capability. See Section 5.4, “Security Issues with LOAD
       DATA LOCAL”.

       Warning: The temporary files created for LOAD DATA LOCAL statements are
       not automatically deleted because they are needed until you actually
       execute those statements. You should delete the temporary files
       yourself after you no longer need the statement log. The files can be
       found in the temporary file directory and have names like
       original_file_name-#-#.

       The --hexdump option produces a hex dump of the log contents in
       comments:

       shell> mysqlbinlog --hexdump master-bin.000001

       With the preceding command, the output might look like this:

       /*!40019 SET @@session.max_insert_delayed_threads=0*/;
       /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
       # at 4
       #051024 17:24:13 server id 1  end_log_pos 98
       # Position  Timestamp   Type   Master ID	       Size	 Master Pos    Flags
       # 00000004 9d fc 5c 43	0f   01 00 00 00   5e 00 00 00	 62 00 00 00   00 00
       # 00000017 04 00 35 2e 30 2e 31 35  2d 64 65 62 75 67 2d 6c |..5.0.15.debug.l|
       # 00000027 6f 67 00 00 00 00 00 00  00 00 00 00 00 00 00 00 |og..............|
       # 00000037 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 |................|
       # 00000047 00 00 00 00 9d fc 5c 43  13 38 0d 00 08 00 12 00 |.......C.8......|
       # 00000057 04 04 04 04 12 00 00 4b  00 04 1a		   |.......K...|
       #       Start: binlog v 4, server v 5.0.15-debug-log created 051024 17:24:13
       #       at startup
       ROLLBACK;

       Hex dump output currently contains the following elements. This format
       might change in the future.

       ·  Position: The byte position within the log file.

       ·  Timestamp: The event timestamp. In the example shown, ´9d fc 5c 43'
	  is the representation of ´051024 17:24:13' in hexadecimal.

       ·  Type: The type of the log event. In the example shown, ´0f' means
	  that the example event is a FORMAT_DESCRIPTION_EVENT. The following
	  table lists the possible types.  TypeNameMeaning00UNKNOWN_EVENTThis
	  event should never be present in the log.01START_EVENT_V3This
	  indicates the start of a log file written by MySQL 4 or
	  earlier.02QUERY_EVENTThe most common type of events. These contain
	  statements executed on the
				master.03STOP_EVENTIndicates that master has
	  stopped.04ROTATE_EVENTWritten when the master switches to a new log
	  file.05INTVAR_EVENTUsed mainly for AUTO_INCREMENT values and when
	  the
				LAST_INSERT_ID() function is
				used in the statement.06LOAD_EVENTUsed for
	  LOAD DATA INFILE in MySQL 3.23.07SLAVE_EVENTReserved for future
	  use.08CREATE_FILE_EVENTUsed for LOAD DATA INFILE statements. This
	  indicates
				the start of execution of such a statement. A
				temporary file is created on the slave. Used
	  in
				MySQL 4 only.09APPEND_BLOCK_EVENTContains data
	  for use in a LOAD DATA INFILE
				statement. The data is stored in the temporary
				file on the slave.0aEXEC_LOAD_EVENTUsed for
	  LOAD DATA INFILE statements. The contents of
				the temporary file is stored in the table on
	  the
				slave. Used in MySQL 4
	  only.0bDELETE_FILE_EVENTRollback of a LOAD DATA INFILE statement.
	  The
				temporary file should be deleted on
	  slave.0cNEW_LOAD_EVENTUsed for LOAD DATA INFILE in MySQL 4 and
	  earlier.0dRAND_EVENTUsed to send information about random values if
	  the
				RAND() function is used in the
				statement.0eUSER_VAR_EVENTUsed to replicate
	  user variables.0fFORMAT_DESCRIPTION_EVENTThis indicates the start of
	  a log file written by MySQL 5 or later.10XID_EVENTEvent indicating
	  commit of an XA transaction.11BEGIN_LOAD_QUERY_EVENTUsed for LOAD
	  DATA INFILE statements in MySQL 5 and
				later.12EXECUTE_LOAD_QUERY_EVENTUsed for LOAD
	  DATA INFILE statements in MySQL 5 and
				later.13TABLE_MAP_EVENTReserved for future
	  use.14WRITE_ROWS_EVENTReserved for future
	  use.15UPDATE_ROWS_EVENTReserved for future
	  use.16DELETE_ROWS_EVENTReserved for future use..TP · Master ID: The
	  server id of the master that created the event.

       ·  Size: The size in bytes of the event.

       ·  Master Pos: The position of the event in the original master log
	  file.

       ·  Flags: 16 flags. Currently, the following flags are used. The others
	  are reserved for the future.
	  FlagNameMeaning01LOG_EVENT_BINLOG_IN_USE_FLog file correctly closed.
	  (Used only in
				FORMAT_DESCRIPTION_EVENT.) If
				this flag is set (if the flags are, for
	  example,
				'01 00') in a
				FORMAT_DESCRIPTION_EVENT, the
				log file has not been properly closed. Most
				probably this is because of a master crash
	  (for
				example, due to power failure).02 Reserved for
	  future use.04LOG_EVENT_THREAD_SPECIFIC_FSet if the event is
	  dependent on the connection it was executed in (for
				example, '04 00'), for example,
				if the event uses temporary
	  tables.08LOG_EVENT_SUPPRESS_USE_FSet in some circumstances when the
	  event is not dependent on the default
				database.The other flags are reserved for
	  future use.

SEE ALSO
       msql2mysql(1), myisamchk(1), myisamlog(1), myisampack(1), mysql(1),
       mysql.server(1), mysql_config(1), mysql_fix_privilege_tables(1),
       mysql_upgrade(1), mysql_zap(1), mysqlaccess(1), mysqladmin(1),
       mysqlcheck(1), mysqld(1), mysqld_multi(1), mysqld_safe(1),
       mysqldump(1), mysqlhotcopy(1), mysqlimport(1), mysqlmanager(1),
       mysqlshow(1), perror(1), replace(1), safe_mysqld(1)

       For more information, please refer to the MySQL Reference Manual, which
       may already be installed locally and which is also available online at
       http://dev.mysql.com/doc/.

AUTHOR
       MySQL AB (http://www.mysql.com/).  This software comes with no
       warranty.

MySQL 5.0			  03/04/2006			MYSQLBINLOG(1)
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