diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index aa436965b..999cefdaa 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -43,7 +43,7 @@ class Attachment < ActiveRecord::Base
   #elasticsearch kaminari init
   Kaminari::Hooks.init
   Elasticsearch::Model::Response::Response.__send__ :include, Elasticsearch::Model::Response::Pagination::Kaminari
-  settings index: { number_of_shards: 1 } do
+  settings index: { number_of_shards: 5 } do
     mappings dynamic: 'false' do
       indexes :filename, analyzer: 'smartcn',index_options: 'offsets'
       indexes :downloads, analyzer: 'smartcn',index_options: 'offsets'
diff --git a/app/models/course.rb b/app/models/course.rb
index edc5e105b..30a6bb439 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -12,7 +12,7 @@ class Course < ActiveRecord::Base
   #elasticsearch kaminari init
   Kaminari::Hooks.init
   Elasticsearch::Model::Response::Response.__send__ :include, Elasticsearch::Model::Response::Pagination::Kaminari
-  settings index: { number_of_shards: 1 } do
+  settings index: { number_of_shards: 5 } do
     mappings dynamic: 'false' do
       indexes :name, analyzer: 'smartcn',index_options: 'offsets'
       indexes :description, analyzer: 'smartcn',index_options: 'offsets'
diff --git a/app/models/project.rb b/app/models/project.rb
index c68e73369..ff546e098 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -35,7 +35,7 @@ class Project < ActiveRecord::Base
   #elasticsearch kaminari init
   Kaminari::Hooks.init
   Elasticsearch::Model::Response::Response.__send__ :include, Elasticsearch::Model::Response::Pagination::Kaminari
-  settings index: { number_of_shards: 1 } do
+  settings index: { number_of_shards: 5 } do
     mappings dynamic: 'false' do
       indexes :name, analyzer: 'smartcn',index_options: 'offsets'
       indexes :description, analyzer: 'smartcn',index_options: 'offsets'
diff --git a/app/models/user.rb b/app/models/user.rb
index cdec39a3d..e043a5ff9 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -30,7 +30,7 @@ class User < Principal
   #elasticsearch kaminari init
   Kaminari::Hooks.init
   Elasticsearch::Model::Response::Response.__send__ :include, Elasticsearch::Model::Response::Pagination::Kaminari
-  settings index: { number_of_shards: 1 } do
+  settings index: { number_of_shards: 5 } do
     mappings dynamic: 'false' do
       indexes :login, analyzer: 'smartcn',index_options: 'offsets'
       indexes :firstname, analyzer: 'smartcn',index_options: 'offsets'