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| author | Damien F. Katz <damien@apache.org> | 2008-11-03 20:59:45 +0000 |
|---|---|---|
| committer | Damien F. Katz <damien@apache.org> | 2008-11-03 20:59:45 +0000 |
| commit | 60bc407c5fc00acc1d0608a45693b8cc61b21d79 (patch) | |
| tree | 757e7c206629d134716c64d44c0e5b843d42e15d /src | |
| parent | c4457a1d1907159d5948c4994009fd60ad337473 (diff) | |
Fix for performance problem with views. Every access to a view was causing a disk sync, regardless if the index was updated.
git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@710156 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'src')
| -rw-r--r-- | src/couchdb/couch_view.erl | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/couchdb/couch_view.erl b/src/couchdb/couch_view.erl index e3623dde..4ebbb136 100644 --- a/src/couchdb/couch_view.erl +++ b/src/couchdb/couch_view.erl @@ -382,7 +382,7 @@ start_temp_update_loop(DbName, Fd, Lang, MapSrc, RedSrc) -> temp_update_loop(DbName, Group, NotifyPids) -> {ok, Db} = couch_db:open(DbName, []), - {ok, Group2} = update_group(Group#group{db=Db}), + {_Updated, Group2} = update_group(Group#group{db=Db}), couch_db:close(Db), [Pid ! {self(), {ok, Group2}} || Pid <- NotifyPids], garbage_collect(), @@ -463,7 +463,10 @@ update_loop(RootDir, DbName, GroupId, #group{sig=Sig,fd=Fd}=Group, NotifyPids) - couch_db:close(Db) end, case Result of - {ok, Group2} -> + {same, Group2} -> + [Pid ! {self(), {ok, Group2}} || Pid <- NotifyPids], + update_loop(RootDir, DbName, GroupId, Group2, get_notify_pids(100000)); + {updated, Group2} -> HeaderData = {Sig, get_index_header_data(Group2)}, ok = couch_file:write_header(Fd, <<$r, $c, $k, 0>>, HeaderData), [Pid ! {self(), {ok, Group2}} || Pid <- NotifyPids], @@ -555,9 +558,9 @@ update_group(#group{db=Db,current_seq=CurrentSeq, couch_query_servers:stop_doc_map(Group4#group.query_server), if CurrentSeq /= NewSeq -> {ok, Group5} = write_changes(Group4, ViewKVsToAdd2, DocIdViewIdKeys2, NewSeq), - {ok, Group5#group{query_server=nil}}; + {updated, Group5#group{query_server=nil}}; true -> - {ok, Group4#group{query_server=nil}} + {same, Group4#group{query_server=nil}} end. delete_index_dir(RootDir, DbName) -> |