Altered the function to assert that the DCB is a backend DCB in addition
to the existing assertions for non-NULL backend reference on function
return.
Move the fetching of the backend reference after the type of the DCB is
inspected in handleError. This removes the need to handle the case where
the returned bref is NULL and the DCB is a client DCB.
They are not particularly useful, they surely are not used
and impose a small cost for every event extracted from the
poll sets.
This commit only removes the maxadmin commands, subsequent
commits will remove the actual code.
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.
Maxavro now supports reading records with the zlib deflate
algorithm.
With this change, each data block is read into memory in one IO
operation. This allows the library to decompress the data block if
necessary.
The avrorouter does not yet use compression when writing the records.
The `failover_recovery` option allows failed servers to rejoin the
cluster. This should make using MaxScale with two node clusters easier.
One use case for this is when the replication-manager promotes the last
node in the cluster as the master. When this is done, the slave
configuration is cleared and the read-only mode is disabled. Since the
failover requires that the server is not configured as a slave and that it
is not in read-only mode, it is safe to use `failover_recovery` with
replication-manager.
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
They are not particularly useful, they surely are not used
and impose a small cost for every event extracted from the
poll sets.
This commit only removes the maxadmin commands, subsequent
commits will remove the actual code.
The SQLite database is now always created on disk. This will remove the
need to dump the database users from the in-memory database to the
persisted on-disk database.
This change will also make the authentication compatible with older SQLite
implementations which lack the URI-based database strings found in newer
versions.
The DECIMAL value type is now properly handled in Avrorouter. It is
processed into an Avro double value when before it was ignored and
replaced with a zero integer.
Backported to the 2.0 branch.
There's no point in indexing the file if it hasn't been synced to
disk. Any attempts to index the file will fail if the file still has an
open data block.
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.
NullFilter is a filter module that does nothing, except reports
capabilities as defined in the configuration file. It's purpose
is only to make it simple to benchmark the performance impact
various routing capabilities have.
Note that since getCapabilities() currently does *not* take an
instance pointer as parameter, all NullFilter instances will
report the same capabilities, the ones specified for the last
filter to have been loaded.
Removed unused spinlocks from DCBs, sessions and the MySQL protocol
structs. They were used in a context where only one thread has access to
the structure.
Removed unused member variables from DCBs.
