Algo timer is simplified timer designed for qnetd algorithm. Instead of
full timer only one can exists per client. Workflow is:
- In one of algorithm callbacks qnetd_client_algo_timer_schedule is
called
- On timeout .timer_callback is called (for example
qnetd_algo_test_timer_callback). It's possible to set send_vote and
result_vote to send vote info to client
- It's possible to discard timer by calling
qnetd_client_algo_timer_abort
Timer is automatically deleted on client disconnect.
To make all this possible, qnetd main loop now has support for
timer-list (main_timer_list). To be able to handle error and disconnect
client from timer callback, client has schedule_disconnect. If this is
set to 1, client is disconnected on current call of poll loop.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
- corosync-device-net as binary is gone. Replacement is
corosync-qdevice
- corosync-qdevice has support for multiple models (only net is
currently implemented)
- Completelly redesign qdevice-net main loop.
- Connect is non blocking
- Cmap and Votequorum events are handled even before connect to
qnetd. Algorithm gets send_node_list and vote set so it's not needed
to check connection status and also vote_timer is running and voting
until something changes (configuration or votequorum node list)
- If connect fails, algorithm_disconnected with new reason
CANT_CONNECT_TO_THE_SERVER is called
- Logging for qdevice is based on libqb logging functions. Also
logging configuration from corosync.conf is now used and dynamic
changes of configuration are handled.
- Added qdevice_net_algorithm_config_node_list_changed
- Changed qdevice_net_algorithm_votequorum_node_list_notify in respect
of adding send_node_list so it's similar to other functions.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
- Add support for cmap node list configuration change
- Add client side algorithms
- Check if currently received ring id in membership message
equals to last sent ring id
- Send config node list only if config node list really changes and not
after every reload
- Add tlv_ring_id_eq (replacing qnetd_algo_rings_eq) so it's usable in
client
- Move debug logs from algo-test into qnetd-log-debug.c and call them in
proper places (= logs are now algorithm independent)
- Fix memory leak in msg
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Tie-breaker can be used in algorithm to decide if algorithm should
prefer highest, lowest or some concrete node id.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
- Complete config and membership node list callbacks
- Add client disconnect callback
- Always send msg_seq_num in node list
- Store config and last membership node list
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
