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| author | cmumford <cmumford@google.com> | 2018-04-27 09:14:32 -0700 |
|---|---|---|
| committer | Victor Costan <pwnall@chromium.org> | 2018-04-30 15:50:26 -0700 |
| commit | e7840de9f3db1a5eddedfecbbbc1ff72a4c2631a (patch) | |
| tree | 7945dcfba5e846ae178325962cbeeae72896644c /doc | |
| parent | bc23e00f955eadb9e26f8ce07c1c664e7b985ff0 (diff) | |
| download | leveldb-e7840de9f3db1a5eddedfecbbbc1ff72a4c2631a.tar.gz | |
Fix documentation for log file growth.
This fixes #546 reported on GitHub.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194549692
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/impl.md | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/doc/impl.md b/doc/impl.md index 6e6b2ab..cacabb9 100644 --- a/doc/impl.md +++ b/doc/impl.md @@ -65,12 +65,14 @@ Other files used for miscellaneous purposes may also be present (LOCK, *.dbtmp). ## Level 0 When the log file grows above a certain size (4MB by default): -Create a brand new memtable and log file and direct future updates here +Create a brand new memtable and log file and direct future updates here. + In the background: -Write the contents of the previous memtable to an sstable -Discard the memtable -Delete the old log file and the old memtable -Add the new sstable to the young (level-0) level. + +1. Write the contents of the previous memtable to an sstable. +2. Discard the memtable. +3. Delete the old log file and the old memtable. +4. Add the new sstable to the young (level-0) level. ## Compactions |