choice of uuid algos for better insert perf. Closes COUCHDB-465. Thanks rnewson, bitdiddle

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@813051 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 13 insertions, 0 deletions

diff --git a/etc/couchdb/default.ini.tpl.in b/etc/couchdb/default.ini.tpl.in
index 3260449b..cb7b93dd 100644
--- a/etc/couchdb/default.ini.tpl.in
+++ b/etc/couchdb/default.ini.tpl.in
@@ -53,6 +53,7 @@ query_servers={couch_query_servers, start_link, []}
 httpd={couch_httpd, start_link, []}
 stats_aggregator={couch_stats_aggregator, start, []}
 stats_collector={couch_stats_collector, start, []}
+uuids={couch_uuids, start, []}
 
 [httpd_global_handlers]
 / = {couch_httpd_misc_handlers, handle_welcome_req, <<"Welcome">>}
@@ -92,3 +93,15 @@ _show = {couch_httpd_show, handle_doc_show_req}
 _list = {couch_httpd_show, handle_view_list_req}
 _info = {couch_httpd_db,   handle_design_info_req}
 _update = {couch_httpd_show, handle_doc_update_req}
+
+[uuids]
+; Known algorithms:
+;   random - 128 bits of random awesome
+;     All awesome, all the time.
+;   sequential - monotonically increasing ids with random increments
+;     First 26 hex characters are random. Last 6 increment in
+;     random amounts until an overflow occurs. On overflow, the
+;     random prefix is regenerated and the process starts over.
+;   utc_random - Time since Jan 1, 1970 UTC with microseconds
+;     First 14 characters are the time in hex. Last 18 are random.
+algorithm = random