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Diffstat (limited to 'src/leveldb/doc/impl.md')
| -rw-r--r-- | src/leveldb/doc/impl.md | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/leveldb/doc/impl.md b/src/leveldb/doc/impl.md index 4b13f2a6ba..cacabb96fc 100644 --- a/src/leveldb/doc/impl.md +++ b/src/leveldb/doc/impl.md @@ -64,13 +64,15 @@ Other files used for miscellaneous purposes may also be present (LOCK, *.dbtmp). ## Level 0 -When the log file grows above a certain size (1MB by default): -Create a brand new memtable and log file and direct future updates here +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. + 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 |