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wohali pushed a commit to branch 749-fix-couch_peruser-app-structure
in repository https://gitbox.apache.org/repos/asf/couchdb.git
commit 93fb6ee9da907c53f44ad6887c6c9a1309f118aa
Author: Jan Lehnardt <j...@apache.org>
AuthorDate: Sat Oct 7 23:24:14 2017 +0200
move couch_replication_clustering:owner/3 to mem3.erl
---
src/couch_replicator/src/couch_replicator.erl | 2 +-
src/couch_replicator/src/couch_replicator_clustering.erl | 10 +---------
src/mem3/src/mem3.erl | 8 +++++++-
3 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/src/couch_replicator/src/couch_replicator.erl
b/src/couch_replicator/src/couch_replicator.erl
index c67b37d..8b7cd5c 100644
--- a/src/couch_replicator/src/couch_replicator.erl
+++ b/src/couch_replicator/src/couch_replicator.erl
@@ -184,7 +184,7 @@ active_doc(DbName, DocId) ->
Live = [node() | nodes()],
Nodes = lists:usort([N || #shard{node=N} <- Shards,
lists:member(N, Live)]),
- Owner = couch_replicator_clustering:owner(DbName, DocId, Nodes),
+ Owner = mem3:owner(DbName, DocId, Nodes),
case active_doc_rpc(DbName, DocId, [Owner]) of
{ok, DocInfo} ->
{ok, DocInfo};
diff --git a/src/couch_replicator/src/couch_replicator_clustering.erl
b/src/couch_replicator/src/couch_replicator_clustering.erl
index ed01465..3d5229b 100644
--- a/src/couch_replicator/src/couch_replicator_clustering.erl
+++ b/src/couch_replicator/src/couch_replicator_clustering.erl
@@ -45,7 +45,6 @@
-export([
owner/2,
- owner/3,
is_stable/0,
link_cluster_event_listener/3
]).
@@ -96,13 +95,6 @@ owner(_DbName, _DocId) ->
node().
-% Direct calculation of node membership. This is the algorithm part. It
-% doesn't read the shard map, just picks owner based on a hash.
--spec owner(binary(), binary(), [node()]) -> node().
-owner(DbName, DocId, Nodes) ->
- hd(mem3_util:rotate_list({DbName, DocId}, lists:usort(Nodes))).
-
-
-spec is_stable() -> true | false.
is_stable() ->
gen_server:call(?MODULE, is_stable).
@@ -200,4 +192,4 @@ owner_int(ShardName, DocId) ->
Live = [node() | nodes()],
Shards = mem3:shards(DbName, DocId),
Nodes = [N || #shard{node=N} <- Shards, lists:member(N, Live)],
- owner(DbName, DocId, Nodes).
+ mem3:owner(DbName, DocId, Nodes).
diff --git a/src/mem3/src/mem3.erl b/src/mem3/src/mem3.erl
index e2cbb2e..047154a 100644
--- a/src/mem3/src/mem3.erl
+++ b/src/mem3/src/mem3.erl
@@ -19,7 +19,7 @@
-export([compare_nodelists/0, compare_shards/1]).
-export([quorum/1, group_by_proximity/1]).
-export([live_shards/2]).
--export([belongs/2]).
+-export([belongs/2, owner/3]).
-export([get_placement/1]).
%% For mem3 use only.
@@ -311,6 +311,12 @@ name(#shard{name=Name}) ->
name(#ordered_shard{name=Name}) ->
Name.
+% Direct calculation of node membership. This is the algorithm part. It
+% doesn't read the shard map, just picks owner based on a hash.
+-spec owner(binary(), binary(), [node()]) -> node().
+owner(DbName, DocId, Nodes) ->
+ hd(mem3_util:rotate_list({DbName, DocId}, lists:usort(Nodes))).
+
-ifdef(TEST).
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