Merge remote-tracking branch 'origin/2.9.5-dev' into 2.9.5-dev

src/main/resources/druid.properties

-#
-# Solo - A small and beautiful blogging system written in Java.
-# Copyright (c) 2010-2018, b3log.org & hacpai.com
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-#
-
-#
-# Description: Druid JDBC pool finer configurations.
-# Version: 1.0.0.1, Jan 8, 2016
-# Author: Liang Ding
-#
-
-validationQuery=SELECT 1
-testWhileIdle=true
-timeBetweenEvictionRunsMillis=60000
-minEvictableIdleTimeMillis=300000
-maxWait=5000
-
-removeAbandoned=true
-removeAbandonedTimeout=600
-logAbandoned=true