- Retry enter_toi() in poll_enter_toi() also for error_connection_failed
which means that the connectivity to the cluster has been lost,
a.k.a non-prim.
Certification keys are needed for NBO end to resolve dependencies
for the write sets which follow NBO end. Without keys the following
write sets do not detect dependency to NBO event and may start applying
too early.
- Set both current error and current error status if provider enter_toi()
or leave_toi() fails.
- Leave NBO mode if TOI cannot be entered in begin_nbo_phase_two().
If timeout option is give, enter_toi_local() and begin_nbo_phase_one()
retry provider::enter_toi() as long as return status indicates
certification failure, given timeout expires or the client is interrupted.
- High priority interface method to apply NBO begin, separate from
apply_toi() in order to avoid implementation to force interpreting
ws_meta flags.
- Method to put client_state into NBO mode when applying NBO begin.
The client_state will process in m_local mode.
- Unit tests for applying NBO
- Implemented calls to enter and leave NBO phase one and two
- Extended client_state mode checking to include m_nbo
- Changed client_state state and mode change sanity checks to
print a warning and assert() instead of throwing exceptions
to be more graceful in release builds.
Access to empty vector by using operator[] may cause stdlib++
assertions to fail. Replaced the vector data access to use data()
method which is valid operation even if the vector is empty.
Added unit test to reproduce assertion with empty mutable_buffer access.
Added -D_GLIBCXX_ASSERTIONS preprocessor option to debug builds
to catch standard library misuse.
Added gcc 8 and gcc9 into travis build matrix.
- Do not use [[noreturn]] with GCC older than 4.8.
- Use if/else instead of ternary operator in transaction
commit_or_rollback_by_xid() to avoid debug build failure with
GCC 4.7.
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.
* Add method `restore_prepared_transaction` to `client_state` class
which restores a transaction state from storage given its xid.
* Add method `commit_or_rollback_by_xid` to terminate prepared XA
transactions by xid.
* Make sure that transactions in prepared state are not rolled back
when their master fails/partitions away.
Class streaming_context can now keep track of database specific log
position for streaming. Previously, it was assumed that the log
position was based of off the buffer size which was filled in
client_service::prepare_fragment_for_replication(). However, for XA
the buffer may contain data that is not in the log. Therefore,
subsequent calls to prepare_fragment_for_replication() could not find
the appropriate log_position based on the certified_bytes(), which
would returns the total number of bytes return in the buffers that
were certified.
next_fragment is called outside the scope of a high_priority_switch,
and we may be in a different thread context then the streaming applier
was created in
Force fragment replication when XA transaction is prepared, with
prepare fragment. Commit fragment happens in before_commit().
Adjusted fragment removal, which cannot happen in atomically with the
executing transaction.
Added a wsrep::thread_service interface to allow application to
inject instrumented thread, mutex and condition variable implementation
for provider.
The interface is defined in include/wsrep/thread_service.hpp.
Sample implementation is provided in dbsim/db_threads.[h|c]pp.
This patch will also clean up some remaining dependencies to
wsrep-API compilation units so that the dependency to wsrep-API
is header only. This will extending the provider support to
later wsrep-API versions.
