The starting of a service without listeners would fail but there wouldn't be
any log messages about the reason of the failure. In addition to this, MaxScale
would try to restart the service periodically which would lead to unnecessary
error messages.
With this change, missing listeners for services are considered configuration
errors.
The current implementation of idle connection timeouts is not safe. The sessions
are handled in a way which is not thread-safe and the checking is done from
a non-polling thread.
With this change, the checks for the session timeouts are done in one of the
polling threads in a thread-safe manner only if at least one service has enabled
the timing out of idle client connections.
When a filter module is not found or the instance creation fails, this is considered
a fatal error and MaxScale will not start. If a failure occurs when the configuration
is being reloaded, the service will not use filters and an error will be logged.
When no users are loaded from backends, instead of counting it as a failure the service is started and the next time a client connects an attempt to load the users from the backends is made.
service.h:Added the 'serviceStartFailed' function which tries to start services with successfully started routers but no successfully started listeners.
mysql_mon.c:Added a call to ServiceStartFailed when servers come available.
Added server references to services instead of using a raw pointers to server instances.
Changed all references to service->database to service->dbref.
dbusers.c: Added function for setting read, write and connection timeout values. Set default timeouts for getUsers. Defaults are listed in service.c
gateway.c:shutdown_server is called whenever MaxScale is to be shut down. Added call for service_shutdown to shutdown_server.
service.c:service_alloc: replaced malloc with calloc and removed unnecessary zero/NULL initialization statements as a consequence.
serviceStart: Exit serviceStartPort loop if shutdown flag is set for the service.
serviceStartAll: Exit serviceStart loop if shutdown flag is set for the service.
service.c: Added service_shutdown which sets shutdown flag for each service found in allServices list.
service.h: Added prototype for service_shutdown
New service parameter ‘localhost_match_any’ allows localhost matching
the wildcard host.
Default value is 0, don’t match.
It may be changed if backend servers don’t have the anonymous user
‘’@localhost
