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Add doc statement

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Martin Sumner 2017-11-09 12:48:48 +00:00
parent ee47d62c24
commit 69f7e4c12a
1 changed files with 11 additions and 0 deletions
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src/leveled_iclerk.erl
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@ -335,6 +335,17 @@ schedule_compaction(CompactionHours, RunsPerDay, CurrentTS) ->
%%%============================================================================
%% @doc
%% Get a score for a single CDB file in the journal. This will pull out a bunch
%% of keys and sizes at random in an efficient way (by scanning the hashtable
%% then just picking the key and siz einformation of disk).
%%
%% The score should represent a percentage which is the size of the file by
%% comparison to the original file if compaction was to be run. So if a file
%% can be reduced in size by 30% the score will be 70%.
%%
%% The score is based on a random sample - so will not be consistent between
%% calls.
check_single_file(CDB, FilterFun, FilterServer, MaxSQN, SampleSize, BatchSize) ->
FN = leveled_cdb:cdb_filename(CDB),
PositionList = leveled_cdb:cdb_getpositions(CDB, SampleSize),