From: Ilya Kosarev <i.kosarev@tarantool.org> To: tarantool-patches@dev.tarantool.org Cc: v.shpilevoy@tarantool.org Subject: [Tarantool-patches] [PATCH v3 0/2] Safe truncation and deletion Date: Mon, 20 Jan 2020 21:13:18 +0300 [thread overview] Message-ID: <cover.1579541242.git.i.kosarev@tarantool.org> (raw) space:truncate() and space:delete() could fail on memory allocations when reaching memtx_memory limit. As far as it is quite an ill behaviour, it is fixed in this patchset through memtx quota strictness adjustment. Now it can be overused if needed. Also possible bps_tree_create_leaf NULL dereference issue is fixed. Branch: https://github.com/tarantool/tarantool/tree/i.kosarev/gh-3807-safe-alloc-on-truncation Issue: https://github.com/tarantool/tarantool/issues/3807 Changes in v2: Approach changed completely: now we are not trying to allocate service tuples in some safe way, but increasing memtx quota so that space:truncate() and space:delete() won't fail on allocation. Changes in v3: Now we are not increasing memtx quota. Instead we just set a flag to allow quota overuse for space:truncate() and space:delete(). Ilya Kosarev (2): b-tree: return NULL on matras_alloc fail memtx: allow quota overuse for truncation and deletion src/box/box.cc | 5 +++++ src/box/memtx_engine.c | 9 +++++++++ src/box/memtx_engine.h | 3 +++ src/box/memtx_space.c | 13 +++++++++---- src/lib/salad/bps_tree.h | 7 +++++-- src/lib/small | 2 +- 6 files changed, 32 insertions(+), 7 deletions(-) -- 2.17.1
next reply other threads:[~2020-01-20 18:13 UTC|newest] Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-20 18:13 Ilya Kosarev [this message] 2020-01-20 18:13 ` [Tarantool-patches] [PATCH v3 1/2] b-tree: return NULL on matras_alloc fail Ilya Kosarev 2020-01-21 10:32 ` Nikita Pettik 2020-01-31 8:18 ` Konstantin Osipov 2020-02-04 17:13 ` Nikita Pettik 2020-02-04 17:25 ` Konstantin Osipov 2020-02-04 18:08 ` Nikita Pettik 2020-02-04 18:25 ` Konstantin Osipov 2020-01-21 20:55 ` Vladislav Shpilevoy 2020-01-20 18:13 ` [Tarantool-patches] [PATCH v3 2/2] memtx: allow quota overuse for truncation and deletion Ilya Kosarev 2020-01-21 11:42 ` Nikita Pettik 2020-01-21 20:59 ` Vladislav Shpilevoy 2020-02-14 19:57 ` Ilya Kosarev 2020-01-31 8:21 ` Konstantin Osipov 2020-02-04 18:56 ` Ilya Kosarev 2020-02-04 20:06 ` Konstantin Osipov 2020-02-05 19:11 ` Ilya Kosarev 2020-02-05 19:17 ` Konstantin Osipov 2020-02-06 10:50 ` Ilya Kosarev 2020-02-06 14:29 ` Konstantin Osipov 2020-02-06 16:14 ` Ilya Kosarev 2020-02-06 16:26 ` Konstantin Osipov 2020-02-10 8:24 ` Ilya Kosarev 2020-02-10 9:49 ` Konstantin Osipov 2020-02-10 10:43 ` Ilya Kosarev 2020-02-10 10:50 ` Konstantin Osipov 2020-02-14 19:55 ` Ilya Kosarev
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