我得到的错误是
Neo4j (pid 11389) took more than 120 seconds to stop.
我安装了这样的neo4j：
wget -O - https://debian.neo4j.org/neotechnology.gpg.key | sudo apt-key add -
echo 'deb http://debian.neo4j.org/repo stable/' | sudo tee /etc/apt/sources.list.d/neo4j.list
sudo apt-get update
sudo apt-get install -y neo4j
sudo echo "NEO4J_ULIMIT_NOFILE=60000" >> /etc/default/neo4j
但是，当我启动neo4j服务然后尝试停止sudo service neo4j stop时。出现以下问题
Stopping Neo4j........................................................................................................................ failed to stop
Neo4j (pid 11389) took more than 120 seconds to stop.
Please see /var/log/neo4j/neo4j.log for details.
这是日志：
nohup: ignoring input
2016-11-11 19:48:26.913+0000 INFO Starting...
2016-11-11 19:48:27.304+0000 INFO Bolt enabled on localhost:7687.
2016-11-11 19:48:29.655+0000 INFO Started.
2016-11-11 19:48:30.384+0000 INFO Remote interface available at http://localhost:7474/
2016-11-11 19:49:07.230+0000 INFO Neo4j Server shutdown initiated by request
2016-11-11 19:49:07.237+0000 INFO Stopping...
Debug.log中的更多内容：
BatchingMultipleIndexPopulator{activeTasks=0, executor=java.util.concurrent.ThreadPoolExecutor@82bd3a4[Running, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], batchedUpdates = [6164 updates], queuedUpdates = 0}
2016-11-13 15:49:07.886+0000 INFO [o.n.k.i.a.i.IndexPopulationJob] Shutting down executor.
BatchingMultipleIndexPopulator{activeTasks=1, executor=java.util.concurrent.ThreadPoolExecutor@82bd3a4[Running, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 0], batchedUpdates = [], queuedUpdates = 0}
2016-11-13 15:50:10.248+0000 INFO [o.n.k.i.t.l.c.CheckPointerImpl] Check Pointing triggered by scheduler for time threshold [54]: Starting check pointing...
2016-11-13 15:50:10.249+0000 INFO [o.n.k.i.t.l.c.CheckPointerImpl] Check Pointing triggered by scheduler for time threshold [54]: Starting store flush...
2016-11-13 15:50:47.813+0000 INFO [o.n.k.i.f.CommunityFacadeFactory] Shutdown started
2016-11-13 15:50:47.813+0000 INFO [o.n.k.i.f.CommunityFacadeFactory] Database is now unavailable
我做错了什么？我不想每次都kill -9杀死neo4j。