diff --git a/app/models/data_exception.rb b/app/models/data_exception.rb
new file mode 100644
index 000000000..70e03b524
--- /dev/null
+++ b/app/models/data_exception.rb
@@ -0,0 +1,3 @@
+class DataException < ActiveRecord::Base
+  attr_accessible :container_id, :container_type, :message
+end
diff --git a/db/migrate/20161213074134_create_data_exceptions.rb b/db/migrate/20161213074134_create_data_exceptions.rb
new file mode 100644
index 000000000..a9f79402c
--- /dev/null
+++ b/db/migrate/20161213074134_create_data_exceptions.rb
@@ -0,0 +1,11 @@
+class CreateDataExceptions < ActiveRecord::Migration
+  def change
+    create_table :data_exceptions do |t|
+      t.string :message
+      t.integer :container_id
+      t.string :container_type
+
+      t.timestamps
+    end
+  end
+end
diff --git a/lib/tasks/gitlab_sync.rake b/lib/tasks/gitlab_sync.rake
new file mode 100644
index 000000000..d4ff704c0
--- /dev/null
+++ b/lib/tasks/gitlab_sync.rake
@@ -0,0 +1,35 @@
+namespace :gitlab do
+  desc "make sure trustie'data consistent with gitlab's data"
+  task :sync_date => :environment do
+    projects = Project.where("gpid is not null")
+    s = Trustie::Gitlab::Sync.new
+    g = Gitlab.client
+    begin
+      projects = Project.where(:status => 1)
+      projects.each do |project|
+        # sync members and roles
+        if project.members.count != g.team_members(project.gpid).count
+          DataException.create(:message => "project's members is not true", :container_id => project.id, :container_type => "Project")
+          s.only_members(project)
+        end
+      end
+
+      users = User.where("gpid is not null and status =?", 1)
+      users.each do |user|
+        # sync username
+        g.edit_user(user.gid, :username => user.login) if user.login != g.user(user.gid).try(:username)
+
+        # sync email
+        g.edit_user(user.gid, :email => user.mail) if user.mail != g.user(user.gid).try(:email)
+
+        # sync password
+        options = {:encrypted_password=> user.hashed_password, :password_salt=> user.salt}
+        g.put("/users/ext/#{uid}", :body => options)
+      end
+    rescue Exception => e
+      DataException.create(:message => e.message)
+      puts e
+    end
+
+  end
+end
diff --git a/spec/models/data_exception_spec.rb b/spec/models/data_exception_spec.rb
new file mode 100644
index 000000000..566563cbb
--- /dev/null
+++ b/spec/models/data_exception_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe DataException, :type => :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end