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authorJohn Christopher Anderson <jchris@apache.org>2009-05-04 19:59:39 +0000
committerJohn Christopher Anderson <jchris@apache.org>2009-05-04 19:59:39 +0000
commit7c05a60479bacc7acbf6f704285a4ab2981ba02b (patch)
treefe781f60e81fdabf751c48eaa91230ef0396a189 /src/couchdb/couch_batch_save_sup.erl
parent0b878888d10638ec2f2d6691c54c3aad0b4faf9e (diff)
Use batch=ok query param for document PUT and POST to defer index updates until a threshold of documents (or amount of time) has been passed.
This option returns a 202 Accepted response instead of a 201 Created, so do not use it for applications which require all data to be saved safely to disk. It is ideal for applications like logging where losing some events in a crash will be ok. git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@771418 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'src/couchdb/couch_batch_save_sup.erl')
-rw-r--r--src/couchdb/couch_batch_save_sup.erl37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/couchdb/couch_batch_save_sup.erl b/src/couchdb/couch_batch_save_sup.erl
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+++ b/src/couchdb/couch_batch_save_sup.erl
@@ -0,0 +1,37 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+-module(couch_batch_save_sup).
+
+-behaviour(supervisor).
+
+-export([start_link/0,init/1]).
+
+start_link() ->
+ supervisor:start_link({local, couch_batch_save_sup},
+ couch_batch_save_sup, []).
+
+init([]) ->
+ Self = self(),
+ ok = couch_config:register(
+ fun("couchdb", _) ->
+ exit(Self, reload_config)
+ end),
+
+ BatchSize = list_to_integer(couch_config:get("couchdb",
+ "batch_save_size","1000")),
+ BatchInterval = list_to_integer(couch_config:get("couchdb",
+ "batch_save_interval","1000")),
+
+ Batch = {batch, {couch_batch_save, start_link, [BatchSize, BatchInterval]},
+ permanent, 1000, worker, [batch_save]},
+ {ok, {{one_for_one, 10, 3600}, [Batch]}}.