Updated the Connector-C to 3.0.2.
Removed the `mysql_com.h` header from `maxscale/protocol/mysql.h` as it is
already included by `mysql.h` and including it causes errors with
Connector-C 3.0.2.
Organized includes in `maxscale/protocol/mysql.h`.
By processing each buffer individually, the need to iterate over the whole
resultset is removed. Profiling showed that most of the time was spent
navigating the linked list of buffers when an offset into the whole
resultset was used instead of an offset to the individual response buffer.
Basically it would be trivial to report far more operations
explicitly, but for the fact that the values in qc_query_op_t
currently, quite unnecessarily, form a bitmask.
In 2.2 that is no longer the case, so other operations will be
added there.
Apart from listeners, all DCBs will be assigned to the current
thread. This simplifies the addition of DCBs to worker threads.
Also performed a small cleanup of poll_add_dcb to make it more readable.
Thread-local non-POD types are not supported on CentOS 6 and thus they
need to be replaced with pointers to the relevant objects and initialized
at runtime.
In addition to this, functor objects don't appear to work as expected in
CentOS 6 and replacing them with a simple for-loop seems to work.
The test attempted to copy the generated CSV file from the MaxScale server
when in fact it was on the master server. Removed HEAVY label from the
test as it takes about 10 seconds to run.
Cherry-picked from commit f80cde2af149fda9c47d8f9131f82527b76af487.
When a COM_CHANGE_USER was executed, it is possible that the server
responds with a AuthSwitchRequest packet instead of an OK packet. In this
case, the server sends a new scramble which must be used to create the 20
byte hash that is expected as the response.
When the SSL fails to initialize, the errors from OpenSSL should be
logged. This helps to diagnose what is wrong if the error relates to the
certificate files or private keys.
Cleaned up the documentation and reformatted the parameter list of
listener creation to be made out of links.
Added some comments to the resource declarations in resource.cc to prevent
the order of them from being altered.
The servers resource now shows the SSL parameters in the example
output. It also lists the parameters in the list of valid values for
parameters in the server creation section.
Added missing SSL parameters to servers resource output as well as added
the processing of these parameters when servers are created. It is
preferable to define servers as either encrypter or plain and to prevent
the modification of this at runtime.
The authentication errors were not sent as the connection was closed
immediately. The reason for this was the fact that if a client request
uploaded data with bad credentials, MaxScale would not send a response if
the connection was kept open. Closing the socket solved the hang but
caused confusing errors on the client side.
The libmicrohttpd library appears to require full processing of any data
uploaded by a client request before a request can be sent. With this
change, the clients receive proper authentication errors in all cases.
The enabled admins for the Linux users were shown as basic users. This was
caused by the separation of the two admin types.
Added tests that check that enabled Linux accounts show the correct type
in the output.
