- Add a set_provider_factory() method to server_state to allow
injecting provider factory which will be called when the
provider is loaded.
Other related changes:
- Implement to_string() helper method for id class.
- Fix id ostream operator human readable id printing.
- Pass victim client_service as an argument to provider::bf_abort()
to allow passing victim context to custom provider.
- Implement prev() helper method for seqno class.
- Make server_state recover_streaming_appliers_if_not_recovered()
public. In some recovery scenarios the method must be called outside
of server_state internal code paths.
- Add storage_service requires_globals() method. The storage service
implementation may override this to return false if changing to
storage service context does not require store/reset globals.
- Change view final() to also require that the view status is not
primary for the view to be final. Also change the method name to
is_final() to avoid confusion with C++ final identifier.
- Fixes to server state handling in disconnecting and disconnected
states.
- Keep TOI meta data over whole TOI critical section.
Co-authored-by: Denis Protivensky <denis.protivensky@galeracluster.com>
Handle the case were prepare is bf aborted after it has replicated a
fragment, and before the command finishes in
after_command_before_result() and after_command_after_result() hooks.
* Added unit tests for transaction::xa_detach() and
transaction::xa_replay()
* Added unit tests for wsrep::xid
* Fixed minor issues pointed out by reviewer
Add support for detaching XA transactions. This is useful for handling
the case where the DBMS client has a transaction in prepared state and
disconnects. Before disconnect, the DBMS calls the newly introduced
client_state::xa_detach(), to cleanup the local transaction and
convert it to a high priority transaction. The DBMS may later attempt
to terminate the transaction through client_state::commit_by_xid() or
client_state::rollback_by_xid().
Also in this patch:
- Fix client_state::close() so that it does not rollback transactions
in prepared state
- Changed class wsrep::xid representation to hold enough information
so that DBMS can convert to its native representation
- Fix potential infinite loop in
server_state::find_streaming_applier(wsrep:xid&)
- Append SR keys on prepare fragment and make it pa_unsafe
- Handle one phase commit (simply fall back to two phase)
- Do not rollback prepared streaming clients in
server_state::close_orphaned_transactions()
Adjusted transaction_xa_applying unit test to change in
applying_client_fixture. The fixture does not start transaction
and the transaction needs to be started in test explicitly.
Remove methods `is_xa()`, `is_xa_prepare()`, and `xid()` from
client_service interface. Instead, transactions are explicitly
assigned their xid, through at start of XA.
