Neo4j: starting neo4j

[mammadalipour]

Neo4j Version: 3.0.1
Operating System: Xubuntu 16.04
API: Java API

• Steps to reproduce
  sudo neo4j start

• Expected behavior
  neo4j start normally

• Actual behavior
  I get this message:
  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: /var/lib/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.
  /usr/share/neo4j/bin/neo4j: line 411: /var/run/neo4j/neo4j.pid: No such file or directory

It does not have the permission to create neo4j directory in /var/run. I use an alternative way. I go to /etc/init.d and run "sudo ./neo4j start". Even in this way, /var/run/neo4j directory would not be created but neo4j starts. The other way I can start neo4j is to create the directory, manually then run "sudo neo4j start" command
Surprisingly, the "sudo neo4j status" command will always say Neo4j is not running, even if Neo4j is running and I am using it. Only the neo4j file in /etc/init.d works properly (it shows that neo4j is running or not).

[jexp]

Answer from the team:

If you are using neo4j start (as neo4j user??). stop doing that

as @tom.geudens explains, /var/run is a tmpfs and so that folder needs to be created. it IS created in the neo4j service, which you are not using. TL:DR; stop doing neo4j start (preferrably forever) and use systemctl start neo4j

if you run neo4j start with a default config (like in the tarball) then a run directory is created in your local directory. naturally, you can't do that if you are using the system config but not using the service because you need root privileges to create a directory in /var/run

[mammadalipour]

systemctl start neo4j works for me. Thanks.

[robertjriga]

/usr/share/neo4j/bin/neo4j: line 394: /var/log/neo4j/neo4j.log: Permission denied