The second line of changes related to replacing xtrabackup with
mariabackup:
1) All unnecessary references to xtrabackup are removed from
the documentation, from some comments, from the control files
that are used to prepare the packages.
2) Made corrections of the tests from the galera_3nodes suite
that mentioned xtrabackup or the old (associated with xtrabackup)
version of innobackupex.
3) Fixed flaws in the galera_3nodes mtr suite control scripts,
because of which they could not work with mariabackup.
4) Fixed numerous bugs in the SST scripts and in the mtr test
files (galera_3nodes mtr suite) that prevented the use of Galera
with IPv6 addresses.
5) Fixed flaws in tests for rsync and mysqldump (for galera_3nodes
mtr tests suite). These tests were not performed successfully without
these fixes.
https://jira.mariadb.org/browse/MDEV-17835
MDEV-17058: Test failure on wsrep.variables
MDEV-17060: Test failure on galera.galera_var_slave_threads
Fix incorrect calculation of increased applier (slave) threads.
Note that increase change takes effect "immediately" but we should
use proper wait condition to wait it. Reducing the number of
slave threads is not immediate as thread will only exit after a
replication event.
MDEV-17058: Test failure on wsrep.variables
MDEV-17060: Test failure on galera.galera_var_slave_threads
Fix incorrect calculation of increased applier (slave) threads.
Note that increase change takes effect "immediately" but we should
use proper wait condition to wait it. Reducing the number of
slave threads is not immediate as thread will only exit after a
replication event.
Added a SESSION-only system variable "wsrep_dirty_reads" to allow SELECT
queries to pass even when the node is not prepared to accept queries
(wsrep_ready=OFF). Added a test case.
MDEV-6656: Test wsrep.variables hangs
Analysis: wsrep_applier_thread shutdown signaling does not always work
correctly causing a timing problem where main thread is waiting in a
condition variable a signal that all worker threads to end.
Analysis: wsrep_applier_thread shutdown signaling does not always work
correctly causing a timing problem where main thread is waiting in a
condition variable a signal that all worker threads to end.
Merged lp:maria/maria-10.0-galera up to revision 3879.
Added a new functions to handler API to forcefully abort_transaction,
producing fake_trx_id, get_checkpoint and set_checkpoint for XA. These
were added for future possiblity to add more storage engines that
could use galera replication.
Galera tests used default base/SST ports which led to
failures due to port conflicts when run in parallel.
Fixed by setting them to ones generated by mtr framework.
Decoupled wsrep thread count from connection count. By doing so,
the number of wsrep threads (applier/rollbacker) would no longer
affect the threads_connected status variable and thus maximum
allowable user connections limit would be @@max_connections.
Also introduced a new status variable 'wsrep_thread_count' to hold
the number of wsrep applier/rollbacker threads.
Added a test case.
mysql_tzinfo_to_sql tries to set wsrep_replicate_myisam
as SESSION variable, while its a GLOBAL-only system variable,
and thus the resulting sql would fail to load.
Fixed by changing the scope to GLOBAL in the SET command.
Also added following include files to facilitate testing :
* include/have_wsrep.inc
* include/not_wsrep.inc
* include/have_wsrep_enabled.inc
