I use mongodb and nodejs on ec2,I would like to deploy it in order to support 10,000 request a day. I would like to make sure that if the instance terminates or reboots(?) somehow the database won't be lost. I understand that i need to create an EBS volumes for storing the data.
I tried http://www.mongodb.org/display/DOCS/Amazon+EC2+Quickstart#AmazonEC2Quickstart-ConfigureStorage but it didn't work. I get to the point where i should run [ec2-user@domU-... ~]$ sudo chown mongod:mongod /data but I get : chown: invalid user: `mongod:mongod'
solved it by : sudo chown mongod.mongod /data still can't run mongod working :
$sudo /etc/init.d/mongod start
Starting mongod: forked process: 1694
all output going to: /log/mongod.log
[FAILED][ec2-user@domU-... /]$ sudo mongod --dbpath=/data
Mon Oct 29 21:46:56 [initandlisten] MongoDB starting : pid=1675 port=27017 dbpath=/data 64-bit host=domU-...
Mon Oct 29 21:46:56 [initandlisten] db version v2.2.0, pdfile version 4.5
Mon Oct 29 21:46:56 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207
Mon Oct 29 21:46:56 [initandlisten] build info: Linux ... c8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49
Mon Oct 29 21:46:56 [initandlisten] options: { dbpath: "/data" }
Mon Oct 29 21:47:00 [initandlisten] journal dir=/data/journal
Mon Oct 29 21:47:00 [initandlisten] recover : no journal files present, no recovery needed
Mon Oct 29 21:47:00 [initandlisten]
Mon Oct 29 21:47:00 [initandlisten] ERROR: Insufficient free space for journal files
Mon Oct 29 21:47:00 [initandlisten] Please make at least 3379MB available in /data/journal or use --smallfiles
Mon Oct 29 21:47:00 [initandlisten]
Mon Oct 29 21:47:00 [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating
Mon Oct 29 21:47:00 dbexit:
Mon Oct 29 21:47:00 [initandlisten] shutdown: going to close listening sockets...
Mon Oct 29 21:47:00 [initandlisten] shutdown: going to flush diaglog...
Mon Oct 29 21:47:00 [initandlisten] shutdown: going to close sockets...
Mon Oct 29 21:47:00 [initandlisten] shutdown: waiting for fs preallocator...
Mon Oct 29 21:47:00 [initandlisten] shutdown: lock for final commit...
Mon Oct 29 21:47:00 [initandlisten] shutdown: final commit...
Mon Oct 29 21:47:00 [initandlisten] shutdown: closing all files...
Mon Oct 29 21:47:00 [initandlisten] closeAllFiles() finished
Mon Oct 29 21:47:00 [initandlisten] journalCleanup...
Mon Oct 29 21:47:00 [initandlisten] removeJournalFiles
Mon Oct 29 21:47:00 [initandlisten] shutdown: removing fs lock...
Mon Oct 29 21:47:00 dbexit: really exiting now
I DON'T UNDERSTAND A WORD IN THE GUIDE... is it only me...? Is there a more simple to understand guide for achieving this goal? Thank you!