Change History
This change history is a high level summary of selected changes
that may impact applications and/or break backwards compatibility.
See also the CHANGES file in the source distribution
for a complete list of changes.
PECL/mysqlnd_ms 1.1 series
1.1.0-beta
Release date: no released yet, planned for Q4 2011
Motto/theme: Cover replication basics with production quality
The 1.1 and 1.0 series expose a similar feature set. Internally,
the 1.1 series has been refactored to plan for future feature
additions. A new configuration file format has been introduced,
and limitations have been lifted. And the code quality and quality
assurance has been improved.
Feature changes
Added the (chainable) filter concept:
BC break:
mysqlnd_ms_set_user_pick_server
has been removed. The
user
filter has been introduced to replace it.
The filter offers similar functionality, but see below for an
explanation of the differences.
New powerful JSON based configuration syntax.
Lazy connections improved:
security relevant, and state changing commands are covered.
Support for (native) prepared statements.
New statistics: use_master_guess,
use_slave_guess.
BC break: Semantics of statistics changed for
use_slave, use_master.
Future changes are likely. Please see,
mysqlnd_ms_get_stats.
List of broadcasted messages extended by ssl_set.
Library calls now monitored to remember settings for lazy connections:
change_user, select_db,
set_charset, set_autocommit.
Introduced mysqlnd_ms.disable_rw_split.
The configuration setting allows using the load balancing and lazy connection
functionality independently of read write splitting.
Bug fixes
Fixed PECL #22724 - Server switching (mysqlnd_ms_query_is_select() case sensitive)
Fixed PECL #22784 - Using mysql_connect and mysql_select_db did not work
Fixed PECL #59982 - Unusable extension with --enable-mysqlnd-ms-table-filter.
Use of the option is NOT supported. You must not used it. Added note to m4.
The mysqlnd_ms_set_user_pick_server function was removed, and
replaced in favor of a new user filter. You can no longer set a
callback function using mysqlnd_ms_set_user_pick_server at
runtime, but instead have to configure it in the plugins configuration file. The user
filter will pass the same arguments to the callback as before.
Therefore, you can continue to use the same procedural function as a callback.callback
It is no longer possible to use static class methods, or class methods of
an object instance, as a callback. Doing so will cause the function
executing a statement handled by the plugin to emit an
E_RECOVERABLE_ERROR level error, which might look like:
"(mysqlnd_ms) Specified callback (picker) is not a valid callback."
Note: this may halt your application.
PECL/mysqlnd_ms 1.0 series
1.0.1-alpha
Release date: 04/2011
Motto/theme: bug fix release
1.0.0-alpha
Release date: 04/2011
Motto/theme: Cover replication basics to test user feedback
The first release of practical use. It features basic automatic read-write splitting,
SQL hints to overrule automatic redirection, load balancing of
slave requests, lazy connections, and optional, automatic use of the master
after the first write.
The public feature set is close to that of the 1.1 release.
1.0.0-pre-alpha
Release date: 09/2010
Motto/theme: Proof of concept
Initial check-in. Essentially a demo of the
mysqlnd plugin API.