Both the listeners and servers now support IPv6 addresses.
The namedserverfilter does not yet use the new structures and needs to be
fixed in a following commit.
The routers no longer need to track the number of errors each DCB
receives. This is now done by the protocol modules.
The type of the DCB no longer needs to be checked in the handleError
implementation as the function is only called when a backend DCB fails.
The highwater and lowwater callbacks were never registered for the client
DCBs in the binlogrouter.
The DCB hangup callbacks were never called by the core and were replaced
with fake hangup events in an earlier version.
maxbinlogcheck with new -T $pos option can find the BEGIN of
transaction where $pos belongs to and then replace all events in
between with IGNORABLE events
SHOW VARIABLES LIKE 'SERVER_UUID' and SET @slave_uuid are meant only
for MySQL 5.6/7 master registration.
If MariaDB 10 compatibility is set then skip these useless requests.
Moved some typedefs to router.h and server.h, changed a few
constants to these enums. Renamed some types in config.h to
remove "Gateway".
There are still some functions in the public header which are
only used in core, but they seem to fit the theme of public functions
so were not moved.
All modules now declare a name for the module. This is name is added as a
prefix to all messages logged by a module. The prefix should help
determine which part of the system logs a message.
The MXS_MODULDE object now contains optinal pointers for functions
to be called att process and thread startup and shutdown. Since the
functions were added to the end, strictly speaking, all structures
would not have needed to have been modified, but better to be
explicit. In a subsequent change, these will be called.
C++ does not support flexible arrays, so for the time being C++
modules are restricted to 10 parameters. Better approach is to
factor out the parameters to a separate array and then just store
a pointer to that array in MXS_MODULE.
AES_CTR routines are part of openssl 1.0.
If an old library is in use the AES_CTR cannot be specified for
encryption.
Additionally compilation is done without errors.
The MODULE_INFO is now the main object which is used by modules to convey
information to the MaxScale core. The MXS_MODULE name is more apt as it
now contains the actual module definition.
The old MODULES structure was moved into load_utils.c as an internal
implementation and was renamed so that it is not confused with the new
MODULE structure.
The modules are now declared with a common macro. This allows future
additions to the module loading process while also making the loaded
symbol name a constant.
This allows modules to only expose one entry point with a consistent
signature. In the future, this could be used to implement declarations of
module parameters.
Binlog server option ‘encryption_key_file=’ can now use the same key
file the MariaDB 10.1 server might have in my.cnf:
‘file_key_management_filename=‘
Note: the file content must be in clear, no key encryption.
The binlogrouter needs to manipulate the protocol structures in order for
the resultset buffering to work correctly. If the state isn't manipulated
for COM_QUERY statements, the resultsets aren't buffered and will be
routed in separate buffers.
The backend MySQL protocol module now supports a new routing capability
which allows result sets to be gathered into one buffer before they are
routed onward. This should not be used by modules that expect large
result sets as the result set is buffered in memory.
Adding a limit on how large of a result set could be buffered would allow
relatively safe use of this routing capability without compromising the
stability of the system.
Non-replication events were implicitly ignored but this was removed in a
recent change. The code that wasn't previously used didn't break the
replication event handling loop.
Events larger than 16MBytes are now encrypted when being saved.
Some changes to binlog event details report and maxbinlogcheck supports
-H option for replication header display
