options/settings
1. Changed the default value for socket on Windows to the windows
default
2. Removed hard-coded trailing slashes from innodb_data_home_dir
and innodb_log_group_name_dir.
3. Added extra backslashes to the innodb directory example
4. Made the tempdir platform "dependent"
5. Fixed the comments in the .ini files
6. Removed the tmpdir from the templates and the scripts
Conflicts:
- mysql-test/r/mysqld--help-win.result
- sql/sys_vars.cc
Original revsion (in next-mr-bugfixing):
------------------------------------------------------------
revno: 2971 [merge]
revision-id: alfranio.correia@sun.com-20100121210527-rbuheu5rnsmcakh1
committer: Alfranio Correia <alfranio.correia@sun.com>
branch nick: mysql-next-mr-bugfixing
timestamp: Thu 2010-01-21 21:05:27 +0000
message:
BUG#46364 MyISAM transbuffer problems (NTM problem)
It is well-known that due to concurrency issues, a slave can become
inconsistent when a transaction contains updates to both transaction and
non-transactional tables.
In a nutshell, the current code-base tries to preserve causality among the
statements by writing non-transactional statements to the txn-cache which
is flushed upon commit. However, modifications done to non-transactional
tables on behalf of a transaction become immediately visible to other
connections but may not immediately get into the binary log and therefore
consistency may be broken.
In general, it is impossible to automatically detect causality/dependency
among statements by just analyzing the statements sent to the server. This
happen because dependency may be hidden in the application code and it is
necessary to know a priori all the statements processed in the context of
a transaction such as in a procedure. Moreover, even for the few cases that
we could automatically address in the server, the computation effort
required could make the approach infeasible.
So, in this patch we introduce the option
- "--binlog-direct-non-transactional-updates" that can be used to bypass
the current behavior in order to write directly to binary log statements
that change non-transactional tables.
Besides, it is used to enable the WL#2687 which is disabled by default.
------------------------------------------------------------
revno: 2970.1.1
revision-id: alfranio.correia@sun.com-20100121131034-183r4qdyld7an5a0
parent: alik@sun.com-20100121083914-r9rz2myto3tkdya0
committer: Alfranio Correia <alfranio.correia@sun.com>
branch nick: mysql-next-mr-bugfixing
timestamp: Thu 2010-01-21 13:10:34 +0000
message:
BUG#46364 MyISAM transbuffer problems (NTM problem)
It is well-known that due to concurrency issues, a slave can become
inconsistent when a transaction contains updates to both transaction and
non-transactional tables.
In a nutshell, the current code-base tries to preserve causality among the
statements by writing non-transactional statements to the txn-cache which
is flushed upon commit. However, modifications done to non-transactional
tables on behalf of a transaction become immediately visible to other
connections but may not immediately get into the binary log and therefore
consistency may be broken.
In general, it is impossible to automatically detect causality/dependency
among statements by just analyzing the statements sent to the server. This
happen because dependency may be hidden in the application code and it is
necessary to know a priori all the statements processed in the context of
a transaction such as in a procedure. Moreover, even for the few cases that
we could automatically address in the server, the computation effort
required could make the approach infeasible.
So, in this patch we introduce the option
- "--binlog-direct-non-transactional-updates" that can be used to bypass
the current behavior in order to write directly to binary log statements
that change non-transactional tables.
Besides, it is used to enable the WL#2687 which is disabled by default.
Merged from 5.0 version of this patch:
- Removed entire isamchk section. Support for ISAM tables was removed in 5.0.
- Replaced key_buffer with key_buffer_size (correct spelling).
- Removed skip-bdb, as BDB is no longer included in 5.0 and above.
- Removed commented-out bdb_cache_size and bdb_max_lock for the same reason.
- Removed commented-out innodb_log_arch_dir, deprecated in 5.0.24.
- Removed myisam_max_extra_sort_file_size, deprecated in 5.0.6.
- Removed log_long_format, deprecated in 4.1.
- Replaced default_table_type with default-storage-engine.
New in 5.1:
- Replaced table_cache with table_open_cache.
- Removed skip-federated, should have been in 5.0 only.
- Replaced log_slow_queries with slow_query_log, deprecated in 5.1.29.
- Removed entire isamchk section. Support for ISAM tables was removed in 5.0.
- Replaced key_buffer with key_buffer_size (correct spelling).
- Removed skip-bdb, as BDB is no longer included in 5.0 and above.
- Removed commented-out bdb_cache_size and bdb_max_lock for the same reason.
- Removed commented-out innodb_log_arch_dir, deprecated in 5.0.24.
- Removed myisam_max_extra_sort_file_size, deprecated in 5.0.6.
- Removed log_long_format, deprecated in 4.1.
- Replaced default_table_type with default-storage-engine.
or by using --log-bin-index). This is so that he does not have a replication break when his master's
hostname changes. Plus binary logging options consistency checks.
