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diff --git a/doc/impl.md b/doc/impl.md index cacabb9..c9bb621 100644 --- a/doc/impl.md +++ b/doc/impl.md @@ -1,7 +1,7 @@ ## Files The implementation of leveldb is similar in spirit to the representation of a -single [Bigtable tablet (section 5.3)](http://research.google.com/archive/bigtable.html). +single [Bigtable tablet (section 5.3)](https://research.google/pubs/pub27898/). However the organization of the files that make up the representation is somewhat different and is explained below. @@ -166,7 +166,7 @@ So maybe even the sharding is not necessary on modern filesystems? ## Garbage collection of files -`DeleteObsoleteFiles()` is called at the end of every compaction and at the end +`RemoveObsoleteFiles()` is called at the end of every compaction and at the end of recovery. It finds the names of all files in the database. It deletes all log files that are not the current log file. It deletes all table files that are not referenced from some level and are not the output of an active compaction. |