@@ -20066,14 +20066,16 @@ If the temporary file used for fast index creation would be bigger than
using the key cache by the amount specified here, then prefer the key
cache method. This is mainly used to force long character keys in large
tables to use the slower key cache method to create the index.
@strong{Note} that this parameter is given in megabytes!
@strong{Note} that this parameter is given in megabytes before 4.0.3 and
in bytes starting from this version.
@item @code{myisam_max_sort_file_size}
The maximum size of the temporary file MySQL is allowed to use
while recreating the index (during @code{REPAIR}, @code{ALTER TABLE}
or @code{LOAD DATA INFILE}. If the file-size would be bigger than this,
the index will be created through the key cache (which is slower).
@strong{Note} that this parameter is given in megabytes!
@strong{Note} that this parameter is given in megabytes before 4.0.3 and
in bytes starting from this version.
@item @code{net_buffer_length}
The communication buffer is reset to this size between queries. This
@@ -23167,10 +23169,10 @@ exactly what @code{mysqld} thought the client sent to it.
@c Note: this instance of "safe_mysql" should not be changed to "mysqld_safe"
@c because it's a 3.23.x-specific command
Older versions of the @code{mysql.server} script (from MySQL 3.23.4 to 3.23.8)
pass @code{safe_mysqld} a @code{--log} option. If you need better performance
when you start using MySQL in a production environment, you can remove the
@code{--log} option from @code{mysql.server} or change it to
@code{--log-bin}.
pass @code{safe_mysqld} a @code{--log} option (enable general query log).
If you need better performance when you start using MySQL in a production
environment, you can remove the @code{--log} option from @code{mysql.server}
or change it to @code{--log-bin}. @xref{Binary log}.
The entries in this log are written as @code{mysqld} receives the questions.
This may be different from the order in which the statements are executed.
@@ -23249,7 +23251,9 @@ we recommend you to switch to this log format as soon as possible!
The binary log contains all information that is available in the update
log in a more efficient format. It also contains information about how long
every query that updated the database took.
every query that updated the database took. It doesn't contain queries that
doesn't modify any data. If you want to log all queries (for example to
find a problem query) you should use the general query log. @xref{Query log}.
The binary log is also used when you are replicating a slave from a master.
@xref{Replication}.
@@ -23821,7 +23825,8 @@ the slave to apply updates from one database on the master to the one
with a different name on the slave.
@item
Starting in Version 3.23.28, you can use @code{PURGE MASTER LOGS TO 'log-name'}
to get rid of old logs while the slave is running.
to get rid of old logs while the slave is running. This will remove all old
logs before, but not including @code{'log-name'}.
@item
Due to the non-transactional nature of MyISAM tables, it is possible to have
a query that will only partially update a table and return an error code. This
@@ -23854,7 +23859,6 @@ above bugs are conceptually very simple to fix, we have not yet found a way
to do this without a sigficant code change that would compromize the stability
status of 3.23 branch. There exists a workaround for both if in the rare case
it happens to affect your application -- use @code{slave-skip-errors}.
@end itemize
@@ -24124,6 +24128,10 @@ Example:
Tells the slave server not to start the slave on the startup. The user
can start it later with @code{SLAVE START}.
@item @code{slave_compressed_protocol=#} @tab
If 1, then use compression on the slave/client protocol if both
slave and master supports this.
@item @code{slave_net_timeout=#} @tab
Number of seconds to wait for more data from the master before aborting
the read.
@@ -28621,6 +28629,7 @@ and if you can use @code{GLOBAL} or @code{SESSION} with them.
@item delayed_queue_size @tab num @tab GLOBAL
@item flush @tab bool @tab GLOBAL
@item flush_time @tab num @tab GLOBAL
@item foreign_key_checks @tab bool @tab SESSION
@item identity @tab num @tab SESSION
@item insert_id @tab bool @tab SESSION
@item interactive_timeout @tab num @tab GLOBAL | SESSION
@@ -28657,6 +28666,7 @@ and if you can use @code{GLOBAL} or @code{SESSION} with them.
@item rpl_recovery_rank @tab num @tab GLOBAL
@item safe_show_database @tab bool @tab GLOBAL
@item server_id @tab num @tab GLOBAL
@item slave_compressed_protocol @tab bool @tab GLOBAL
@item slave_net_timeout @tab num @tab GLOBAL
@item slow_launch_time @tab num @tab GLOBAL
@item sort_buffer_size @tab num @tab GLOBAL | SESSION
@@ -28682,6 +28692,7 @@ and if you can use @code{GLOBAL} or @code{SESSION} with them.
@item tx_isolation @tab enum @tab GLOBAL | SESSION
@item version @tab string @tab GLOBAL
@item wait_timeout @tab num @tab GLOBAL | SESSION
@item unique_checks @tab bool @tab SESSION
@end multitable
Variables that are marked with @code{num} can be given a numerical
@@ -37636,8 +37647,8 @@ The following options to @code{mysqld} can be used to change the behaviour of
@item @code{--myisam-recover=#} @tab Automatic recovery of crashed tables.
@item @code{-O myisam_sort_buffer_size=#} @tab Buffer used when recovering tables.
@item @code{--delay-key-write-for-all-tables} @tab Don't flush key buffers between writes for any MyISAM table
@item @code{-O myisam_max_extra_sort_file_size=#} @tab Used to help MySQL to decide when to use the slow but safe key cache index create method. @strong{Note} that this parameter is given in megabytes!
@item @code{-O myisam_max_sort_file_size=#} @tab Don't use the fast sort index method to created index if the temporary file would get bigger than this. @strong{Note} that this paramter is given in megabytes!
@item @code{-O myisam_max_extra_sort_file_size=#} @tab Used to help MySQL to decide when to use the slow but safe key cache index create method. @strong{Note} that this parameter is given in megabytes before 4.0.3 and in bytes starting from this version.
@item @code{-O myisam_max_sort_file_size=#} @tab Don't use the fast sort index method to created index if the temporary file would get bigger than this. @strong{Note} that this parameter is given in megabytes before 4.0.3 and in bytes starting from this version.
@item @code{-O bulk_insert_buffer_size=#} @tab Size of tree cache used in bulk insert optimisation. @strong{Note} that this is a limit @strong{per thread}!
@end multitable
@@ -50156,6 +50167,11 @@ each individual 4.0.x release.
@itemize @bullet
@item
Big code cleanup in replication code.
@item
If one specifies @code{--code-file}, call @code{setrlmit()} to change allowed
core file size to unlimited, to be able to generate core files.
@item
Fixed bug in query cache after temporary table creation.
@item
Added @code{--count=N} (@code{-c}) to @code{mysqladmin}, to make the
@@ -50183,7 +50199,7 @@ Fixed bug in query cache initialisation with very small query cache size.
@item
Allow @code{DEFAULT} with @code{INSERT} statement.
@item
The startup parameters @code{myisam_max_extra_sort_file_size} and
The startup parameters @code{myisam_max_sort_file_size} and
@code{myisam_max_extra_sort_file_size} are now given in bytes, not megabytes.
@item
External system locking of MyISAM/ISAM files is now turned off by default.
@@ -50199,6 +50215,8 @@ Fixed a timing bug in @code{DROP DATABASE}
New @code{SET [GLOBAL | SESSION]} syntax to change thread specific and global
server variables at runtime.
@item
Added variable @code{slave_compressed_protocol}.
@item
Renamed variable @code{query_cache_startup_type} to @code{query_cache_type},
@code{myisam_bulk_insert_tree_size} to @code{bulk_insert_buffer_size},
@code{record_buffer} to @code{read_buffer_size} and
@@ -50786,11 +50804,28 @@ not yet 100% confident in this code.
@appendixsubsec Changes in release 3.23.52
@itemize @bullet
@item
Fixed bug with creating an auto-increment value on second part of a
@code{UNIQUE()} key where first part could contain NULL values.
@item
Don't write slave-timeout reconnects to the error log.
@item
Fixed bug with slave net read timeouting
@item
Fixed bug in ALTERing TABLE of BDB type.
@item
Fixed bug when logging @code{LOAD DATA INFILE} to binary log with no
active database.
@item
Fixed a bug in range optimiser (causing crashes).
@item
Fixed possible problem in replication when doing @code{DROP DATABASE} on a
database with @code{InnoDB} tables.
@item
Fixed @code{mysql_info()} to return 0 for the 'Duplicates' value for
@code{INSERT DELAYED IGNORE} statements.
Fixed that @code{mysql_info()} returns 0 for 'Duplicates' when using
@code{INSERT DELAYED IGNORE}.
@item
Added @code{-DHAVE_BROKEN_REALPATH} to the Mac OS X (darwin) compile
options in @file{configure.in} to fix a failure under high load.
