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| author | Robert Dionne <bob@cloudant.com> | 2011-04-19 12:06:37 -0400 |
|---|---|---|
| committer | Adam Kocoloski <adam@cloudant.com> | 2011-04-19 13:09:18 -0400 |
| commit | a9410e622d84c4b6c017d16ea600e9b19e306c59 (patch) | |
| tree | 6d5ff8a1a10fef103594072b50d55990ccc43607 /apps/couch/src/couch_view.erl | |
| parent | 663d04f907ba0f8e23bab0eb2492c431246974fa (diff) | |
Track and report size of live data in DBs and views
The #full_doc_info record is extended to include the summed size of
leaf revision document bodies and their attachments. Document sizes
are computed on update; accurate sizes of existing databases and
view groups are only available after compaction.
The document size is defined to be the size of the binary
representation of #doc.body. The att_len field is used for
attachments; attachments that are shared by multiple revisions of a
document are only counted once. The size of a view index is defined as
the size of all keys, values, and reductions accessible from the current
root of the tree.
BugzID: 9995
Diffstat (limited to 'apps/couch/src/couch_view.erl')
| -rw-r--r-- | apps/couch/src/couch_view.erl | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/apps/couch/src/couch_view.erl b/apps/couch/src/couch_view.erl index 8dca17da..65a42c0b 100644 --- a/apps/couch/src/couch_view.erl +++ b/apps/couch/src/couch_view.erl @@ -18,7 +18,7 @@ code_change/3,get_reduce_view/4,get_temp_reduce_view/5,get_temp_map_view/4, get_map_view/4,get_row_count/1,reduce_to_count/1,fold_reduce/4, extract_map_view/1,get_group_server/2,get_group_info/2, - cleanup_index_files/1,config_change/2]). + cleanup_index_files/1,config_change/2, data_size/2]). -include("couch_db.hrl"). @@ -102,7 +102,7 @@ list_index_files(Db) -> get_row_count(#view{btree=Bt}) -> - {ok, {Count, _Reds}} = couch_btree:full_reduce(Bt), + {ok, {Count, _, _}} = couch_btree:full_reduce(Bt), {ok, Count}. get_temp_reduce_view(Db, Language, DesignOptions, MapSrc, RedSrc) -> @@ -150,6 +150,13 @@ expand_dups([{Key, {dups, Vals}} | Rest], Acc) -> expand_dups([KV | Rest], Acc) -> expand_dups(Rest, [KV | Acc]). +data_size(KVList, Reduction) -> + lists:foldl(fun([[Key, _], Value], Acc) -> + size(term_to_binary(Key)) + + size(term_to_binary(Value)) + + Acc + end,size(term_to_binary(Reduction)),KVList). + fold_reduce({temp_reduce, #view{btree=Bt}}, Fun, Acc, Options) -> WrapperFun = fun({GroupedKey, _}, PartialReds, Acc0) -> {_, [Red]} = couch_btree:final_reduce(Bt, PartialReds), |