[PATCH 0/6] Introduce blackhole engine
Vladimir Davydov
vdavydov.dev at gmail.com
Fri Jul 20 20:43:29 MSK 2018
In the scope of #2129, we need to store deferred DELETE statements
generated during primary index compaction in the WAL so that we can
recover them after restart. This patch set introduces a new engine for
this purpose - blackhole. Spaces that use this engine may be written to,
but not read from (they don't even support creation of indexes). All
operations done on a blackhole space are logged in the WAL and hence
replayed during recovery, which is just what we need.
https://github.com/tarantool/tarantool/issues/2129
https://github.com/tarantool/tarantool/commits/dv/blackhole
Nikita Pettik (1):
Rework memtx replace function
Vladimir Davydov (5):
Add generic engine, space, index method stubs
Merge sysview_index.[hc] and sysview_engine.[hc]
txn: unify txn_stmt tuples reference counting rules
space: call before_replace trigger even if space has no indexes
Introduce blackhole engine
src/box/CMakeLists.txt | 4 +-
src/box/blackhole.c | 210 ++++++++++++++++
src/box/{sysview_index.h => blackhole.h} | 40 ++-
src/box/box.cc | 6 +-
src/box/engine.c | 161 ++++++++++++
src/box/engine.h | 28 +++
src/box/index.cc | 13 +
src/box/index.h | 3 +
src/box/memtx_engine.c | 47 +---
src/box/memtx_space.c | 100 +++++---
src/box/memtx_space.h | 20 +-
src/box/space.c | 109 +++++++--
src/box/space.h | 14 ++
src/box/{sysview_index.c => sysview.c} | 195 +++++++++++++--
src/box/{sysview_engine.h => sysview.h} | 16 +-
src/box/sysview_engine.c | 406 -------------------------------
src/box/txn.c | 19 ++
src/box/vinyl.c | 42 +---
test/box/blackhole.result | 177 ++++++++++++++
test/box/blackhole.test.lua | 64 +++++
20 files changed, 1068 insertions(+), 606 deletions(-)
create mode 100644 src/box/blackhole.c
rename src/box/{sysview_index.h => blackhole.h} (69%)
rename src/box/{sysview_index.c => sysview.c} (70%)
rename src/box/{sysview_engine.h => sysview.h} (84%)
delete mode 100644 src/box/sysview_engine.c
create mode 100644 test/box/blackhole.result
create mode 100644 test/box/blackhole.test.lua
--
2.11.0
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