[Tarantool-patches] [PATCH v21 0/3] qsync: implement packet filtering (part 1)

[Cyrill Gorcunov]

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

v19 (by Vlad):
 - do not modify box_issue_promote and demote (while they are
   still simply utter code duplication but whatever)
 - make txn_limbo_process being void
 - make txn_limbo_process_begin/commit/rollback being void
 - the real processing of request under the lock named as
   txn_limbo_process_core
 - testcase completely reworked (kudos to SergeP)
 - note that if we import test to the master branch without
   ordering pass it will fire assertion
 - dropped off debug info from box.info interface

v20 (by SergeP):
 - use guard for ACK processing and parameters change
 - rework test

v21 (by SergeP):
 - drop warning from txn_limbo_ack
 - rework test to use cluster helpers and ERRINJ_WAL_WRITE_COUNT
   error injection, same time drop modification of election_replica
   script

branch gorcunov/gh-6036-rollback-confirm-21
issue https://github.com/tarantool/tarantool/issues/6036
previous series https://lists.tarantool.org/tarantool-patches/20211006201522.335898-1-gorcunov@gmail.com/

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/box.cc                                |  15 +-
 src/box/relay.cc                              |  11 +-
 src/box/txn.c                                 |   2 +-
 src/box/txn_limbo.c                           |  41 +++-
 src/box/txn_limbo.h                           |  80 ++++++-
 src/lib/core/latch.h                          |  11 +
 test/replication/gh-6036-qsync-order.result   | 204 ++++++++++++++++++
 test/replication/gh-6036-qsync-order.test.lua |  97 +++++++++
 test/replication/suite.cfg                    |   1 +
 test/replication/suite.ini                    |   2 +-
 test/unit/snap_quorum_delay.cc                |   5 +-
 12 files changed, 450 insertions(+), 31 deletions(-)
 create mode 100644 test/replication/gh-6036-qsync-order.result
 create mode 100644 test/replication/gh-6036-qsync-order.test.lua


base-commit: ce5752ce235324fcefd5a3d0503fd3f8a1800d38
-- 
2.31.1