ERROR: listen(): bind() failed errno:13 Permission denied for socket: /tmp/mongodb-27017.sock

When you install mongoDB for CentOS on AWS EC2 and get trouble to run "mongod"
You may see ERROR message as title, this is one of the way to resolve the problem.

# chown root:root /tmp

# chmod 1777 /tmp









error message:


2014-07-01T11:34:16.802+0800 ***** SERVER RESTARTED *****

2014-07-01T11:34:16.814+0800 [initandlisten] MongoDB starting : pid=27528 port=27017 dbpath=/diskZ/mongodb/data/db 64-bit host=95ad9659-ada0-40df-ade9-af531e81e9e4

2014-07-01T11:34:16.814+0800 [initandlisten] db version v2.6.3

2014-07-01T11:34:16.814+0800 [initandlisten] git version: 255f67a66f9603c59380b2a389e386910bbb52cb

2014-07-01T11:34:16.814+0800 [initandlisten] build info: Linux build12.nj1.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49

2014-07-01T11:34:16.814+0800 [initandlisten] allocator: tcmalloc

2014-07-01T11:34:16.814+0800 [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1" }, processManagement: { fork: true, pidFilePath: "/var/run/mongodb/mongod.pid" }, storage: { dbPath: "/diskZ/mongodb/data/db" }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }

2014-07-01T11:34:16.827+0800 [initandlisten] journal dir=/diskZ/mongodb/data/db/journal

2014-07-01T11:34:16.828+0800 [initandlisten] recover : no journal files present, no recovery needed

2014-07-01T11:34:16.887+0800 [initandlisten] ERROR: listen(): bind() failed errno:13 Permission denied for socket: /tmp/mongodb-27017.sock