\
启动Neo4j报错如下：
raini@biyuzhe:~$ sudo neo4j restart
Neo4j not running
Starting Neo4j.
WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.
/usr/share/neo4j/bin/neo4j: 行 411: /var/run/neo4j/neo4j.pid: 没有那个文件或目录
\
检查该目录，并没有：
raini@biyuzhe:~$ ll /var/run/neo4j
ls: 无法访问'/var/run/neo4j': 没有那个文件或目录
raini@biyuzhe:~$ ll /var/run/
总用量 76\
\
\
解决：
手动创建该目录
\
raini@biyuzhe:~$ sudo mkdir /var/run/neo4j
raini@biyuzhe:~$ sudo neo4j start
Active database: graph.db
Directories in use:
home: /var/lib/neo4j
config: /etc/neo4j
logs: /var/log/neo4j
plugins: /var/lib/neo4j/plugins
import: /var/lib/neo4j/import
data: /home/raini/app/tmp/neo4j/data
certificates: /var/lib/neo4j/certificates
run: /var/run/neo4j
Starting Neo4j.
WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.
Started neo4j (pid 31427). It is available at http://localhost:7474/
There may be a short delay until the server is ready.
See /var/log/neo4j/neo4j.log for current status.\
\
\
