6671
87%
master: 87%

Ran 15 Feb 2017 04:49PM UTC

Jobs 1

Files 226

Run time 18s

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Build # 6671

Build Type

push

travis-ci

Committed by

locker

Commit Message

vinyl: make snapshot consistent

A set of run files created by a snapshot is inconsistent, meaning w/o
replaying xlog it is not guaranteed that it contains a database state
that existed when the snapshot was taken. This is because we dump all
ranges independently and each range as a whole, so that if a statements
happens to be inserted to a range after snapshot was started and before
the range is dumped, it will be included in the dump. This peculiarity
stands in the way of backups and replication, both of which require a
consistent database state.

To make snapshot consistent, let's force rotation of all in-memory trees
on snapshot and make the dump task only dump trees that need to be
snapshotted if snapshot is in progress. The rotation is done lazily, on
insertion to the tree, similarly to how we handle DDL. The difference is
instead of sc_version we check vy_mem->min_lsn against checkpoint_lsn.

Run Details

27190 of 31150 relevant lines covered (87.29%)

999530.19 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
4	6671.4 (PACK=coverage)	15 Feb 2017 04:49PM UTC	226	87.29	Travis Job 6671.4

Source Files on build 6671

Coverage	∆	File	Lines	Relevant	Covered	Missed	Hits/Line

tarantool / tarantool / 6671
87%
master: 87%

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