[Tarantool-patches] [PATCH v27 0/3] qsync: implement packet filtering (part 1)

[Cyrill Gorcunov]

Guys, please take a look once time permit, any comments are highly appreciated!

v22 (by SergeP):
 - use limbo emptiness test _after_ owner_id test
 - drop redundant assert in limbo commit/rollback
   since we're unlocking a latch anyway where own
   assertion present
 - in test: drop excessive wait_cond and setup wal
   delay earlier

v23 (by SergeP):
 - fix problem with owner test in case of recovery journal
 - update test

v27:
 - simplify the code and cover the case targeting journal
   write plus terms access race only
 - i've spent almost a few months trying to use fine grained
   locking scheme for limbo but it end up in very complex code
   so eventually I dropped this idea (here why we've v27 after v23)

branch gorcunov/gh-6036-rollback-confirm-27-notest
issue https://github.com/tarantool/tarantool/issues/6036
previous series https://lists.tarantool.org/tarantool-patches/20211014215622.49732-1-gorcunov@gmail.com/#r

Cyrill Gorcunov (3):
  latch: add latch_is_locked helper
  qsync: order access to the limbo terms
  test: add gh-6036-qsync-order test

 src/box/applier.cc                            |  12 +-
 src/box/lua/info.c                            |   4 +-
 src/box/txn_limbo.c                           |  18 +-
 src/box/txn_limbo.h                           |  52 ++++-
 src/lib/core/latch.h                          |  11 +
 test/replication/gh-6036-qsync-order.result   | 189 ++++++++++++++++++
 test/replication/gh-6036-qsync-order.test.lua |  94 +++++++++
 test/replication/suite.cfg                    |   1 +
 test/replication/suite.ini                    |   2 +-
 9 files changed, 371 insertions(+), 12 deletions(-)
 create mode 100644 test/replication/gh-6036-qsync-order.result
 create mode 100644 test/replication/gh-6036-qsync-order.test.lua


base-commit: e2d6c260516c30d33c816b7a6c6c1696e55a39b2
-- 
2.31.1