MDEV-33855 MSAN use-of-uninitialized-value in rtr_pcur_getnext_from_path()
rtr_pcur_getnext_from_path(): Remove a bogus assertion
that may cause a data races with buf_LRU_block_free_non_file_page().
If my_latch_mode == BTR_MODIFY_LEAF, we would have released all page
latches and buffer-fixes by invoking mtr->rollback_to_savepoint(1).
After this point, the btr_cur->page_cur.block is no longer valid and
must not be accessed.
Before 03ca6495df31313c96e38834b9a235245e2ae2a8 this assertion had
been disabled, because the preprocessor symbol UNIV_RTR_DEBUG
had never been enabled (except when explicitly specified in
CMAKE_CXX_FLAGS).
MDEV-33840 tpool- switch to longer maintainence timer interval, if pool is idle
Previous solution, that would entirely switch timer off, turned out
to be deadlock prone.
This patch fixed previous attempt to switch between long/short interval
periods in MDEV-24295. Now, initial state of the timer is fixed (it is ON).
Also, avoid switching timer to longer periods if there is any activity in
the pool.
This fixes up the merge commit 9b18275623026ccfbffb348d56cb629b6255f574
4aeba25...
by
=?utf-8?q?Jan_Lindstr=C3=B6m?= <email address hidden>
MDEV-33895 : Galera test failure on galera_sr.MDEV-25718
Test was waiting INSERT-clause to make rollback but
wait_condition was too tight. State could be
Freeing items or Rollback. Fixed wait_condition
to expect one of them.
