Can't start new wiredtiger node with log file or config file in data directory - false detection of old mmapv1 files

ubuntu@ip-10-169-132-210:~$ cat mmsdev4.conf 

net:

  port: 27018

operationProfiling: {}

processManagement:

  fork: "true"

replication:

  replSetName: mmsdev

storage:

  dbPath: /data/mmsdev_4

  engine: wiredtiger

systemLog:

  destination: file

  path: /data/mmsdev_4/mongodb.log

ubuntu@ip-10-169-132-210:~$ sudo -u mongodb mkdir /data/mmsdev_4

ubuntu@ip-10-169-132-210:~$ ls -lta /data/mmsdev_4

total 8

drwxr-xr-x 2 mongodb nogroup 4096 Nov 22 17:27 .

drwxr-xr-x 8 mongodb mongodb 4096 Nov 22 17:27 ..                                            

ubuntu@ip-10-169-132-210:~$ sudo -u mongodb /var/lib/mongodb-mms-automation/mongodb-linux-x86_64-2.8.0-rc1-pre-5/bin/mongod -f mmsdev4.conf 

about to fork child process, waiting until server is ready for connections.

forked process: 2068

ERROR: child process failed, exited with error number 100

ubuntu@ip-10-169-132-210:~$ cat /data/mmsdev_4/mongodb.log 

2014-11-22T17:28:36.625+0000 I CONTROL  [initandlisten] MongoDB starting : pid=2068 port=27018 dbpath=/data/mmsdev_4 64-bit host=ip-10-169-132-210

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] 

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] 

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] db version v2.8.0-rc1

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] git version: 609a1492d2895ea55a9202815590636d1934a9ca

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] build info: Linux build14.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

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] allocator: tcmalloc

2014-11-22T17:28:36.626+0000 I CONTROL  [initandlisten] options: { config: "mmsdev4.conf", net: { port: 27018 }, processManagement: { fork: true }, replication: { replSetName: "mmsdev" }, storage: { dbPath: "/data/mmsdev_4", engine: "wiredtiger" }, systemLog: { destination: "file", path: "/data/mmsdev_4/mongodb.log" } }

2014-11-22T17:28:36.626+0000 I STORAGE  [initandlisten] exception in initAndListen: 28574 Cannot start server. Detected data files in /data/mmsdev_4 created by storage engine 'mmapv1'. The configured storage engine is 'wiredTiger'., terminating

2014-11-22T17:28:36.626+0000 I COMMAND  [initandlisten] dbexit:  rc: 100

ubuntu@ip-10-169-132-210:~$ sudo -u mongodb mkdir /data/mmsdev_4

ubuntu@ip-10-169-132-210:~$ ls -lta /data/mmsdev_4

total 8

drwxr-xr-x 2 mongodb nogroup 4096 Nov 22 17:35 .

drwxr-xr-x 8 mongodb mongodb 4096 Nov 22 17:35 ..

ubuntu@ip-10-169-132-210:~$ 

ubuntu@ip-10-169-132-210:~$ cat mmsdev4.conf 

net:

  port: 27018

operationProfiling: {}

processManagement:

  fork: "true"

replication:

  replSetName: mmsdev

storage:

  dbPath: /data/mmsdev_4

  engine: wiredtiger

systemLog:

  destination: file

  path: /tmp/mongodb.log

ubuntu@ip-10-169-132-210:~$ sudo -u mongodb /var/lib/mongodb-mms-automation/mongodb-linux-x86_64-2.8.0-rc1-pre-5/bin/mongod -f mmsdev4.conf 

about to fork child process, waiting until server is ready for connections.

forked process: 3169

child process started successfully, parent exiting

ubuntu@ip-10-169-132-210:~$ head -n20 /tmp/mongodb.log

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] MongoDB starting : pid=3169 port=27018 dbpath=/data/mmsdev_4 64-bit host=ip-10-169-132-210

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] 

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] 

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] db version v2.8.0-rc1

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] git version: 609a1492d2895ea55a9202815590636d1934a9ca

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] build info: Linux build14.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

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] allocator: tcmalloc

2014-11-22T17:36:07.828+0000 I CONTROL  [initandlisten] options: { config: "mmsdev4.conf", net: { port: 27018 }, processManagement: { fork: true }, replication: { replSetName: "mmsdev" }, storage: { dbPath: "/data/mmsdev_4", engine: "wiredtiger" }, systemLog: { destination: "file", path: "/tmp/mongodb.log" } }

2014-11-22T17:36:07.828+0000 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=3G,session_max=20000,extensions=[local=(entry=index_collator_extension)],statistics=(all),log=(enabled=true,archive=true,path=journal),checkpoint=(wait=60,log_size=2GB),

2014-11-22T17:36:07.856+0000 I REPL     [initandlisten] Did not find local replica set configuration document at startup;  NoMatchingDocument Did not find replica set configuration document in local.system.replset

2014-11-22T17:36:07.862+0000 I NETWORK  [initandlisten] waiting for connections on port 27018

2014-11-22T17:36:07.943+0000 I NETWORK  [initandlisten] connection accepted from 10.169.132.210:40628 #1 (1 connection now open)

2014-11-22T17:36:07.952+0000 I REPL     [WriteReplSetConfig] Starting replication applier threads

2014-11-22T17:36:07.952+0000 I REPL     [rsSync] replSet warning did not receive a valid config yet, sleeping 5 seconds 

2014-11-22T17:36:07.952+0000 I REPL     [ReplicationExecutor] transition to STARTUP2

2014-11-22T17:36:07.952+0000 I REPL     [ReplicationExecutor] Member ip-10-169-132-210.ec2.internal:27017 is now in state ARBITER

2014-11-22T17:36:07.953+0000 I REPL     [ReplicationExecutor] Member ip-10-218-181-240.ec2.internal:27017 is now in state PRIMARY

2014-11-22T17:36:07.954+0000 I REPL     [ReplicationExecutor] Member ip-10-167-150-115.ec2.internal:27017 is now in state SECONDARY