If a packet with a KILL query was followed with another packet in the same
network buffer, the code wouldn't work as it expected to receive only one
packet at a time.
In MaxScale, a "deprecated" parameter is not in use and can be ignored.
Leaving the parameters out of serialized configuration files avoids warning
messages.
The name of the object (i.e. the section name from the configuration
file), is now stored in the configuration object for that object.
That way, more contextual and hence morfe user friendly errors and
warnings can be generated.
If the server (a real one or a service exposed as a server) is
on the same machine as MaxScale, then for performance reasons
a Unix domain socket and not a TCP/IP socket should be used.
Rename config::Configuration::configure() to
config::Configuration::post_configure(). Latter name makes it
unambiguously clear at what point the function is called.
As an error returned by the server is now stored inside RWBackend,
irrespective of whether it is returned solely or e.g. last after
a result set, there is no need to examine the GWBUF in rws, but
we can use the information that exists.
This is the base for Smart Router. Review and TODO comments are in the
code. This commit will be squashed several times so don't pay attention to this
specific commit message. I will add and remove TODO's in the code, rather
than save them in git commits. RBCommons will contain the history.
The command script is now stored in string form. Substitution is performed
using normal string methods instead of regular expressions, since all used
substitutions are simple string replacements. Tokenization is performed after
substitution.
By iterating over the servers and sending the master's charset we are
guaranteed a "known good" charset. This also solves the problem where a
deactivated server reference would be used as the charset and server
version source.
If the execution of a session command fails on a master, it is retried
again. If the master is not available, the response will be returned from
one of the slaves.
