Master//Slave

[Admin]

Hi All,

I am trying to start an instance on 64bit linux server for setting up
Master - Slave configuration and i am getting out of memory error.Did
anyone faced the same problem???

. ./mongod --master --dbpath /apps/nosql/mongodb/data/db
Tue Nov 16 23:21:30 MongoDB starting : pid=25725 port=27017 dbpath=/
apps/nosql/mongodb/data/db master=1 64-bit
Tue Nov 16 23:21:30 db version v1.6.3, pdfile version 4.5
Tue Nov 16 23:21:30 git version:
278bd2ac2f2efbee556f32c13c1b6803224d1c01
Tue Nov 16 23:21:30 sys info: Linux domU-12-31-39-06-79-A1
2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64
BOOST_LIB_VERSION=1_41
Tue Nov 16 23:21:30 [initandlisten] waiting for connections on port
27017
Tue Nov 16 23:21:30 [initandlisten] ******
Tue Nov 16 23:21:30 [initandlisten] creating replication oplog of
size: 4769MB... (use --oplogSize to change)
Tue Nov 16 23:21:30 allocating new datafile /apps/nosql/mongodb/data/
db/local.ns, filling with zeroes...
Tue Nov 16 23:21:30 done allocating datafile /apps/nosql/mongodb/data/
db/local.ns, size: 16MB, took 0.041 secs
Tue Nov 16 23:21:30 allocating new datafile /apps/nosql/mongodb/data/
db/local.0, filling with zeroes...
Tue Nov 16 23:21:30 done allocating datafile /apps/nosql/mongodb/data/
db/local.0, size: 64MB, took 0.43 secs
Tue Nov 16 23:21:30 allocating new datafile /apps/nosql/mongodb/data/
db/local.1, filling with zeroes...
Tue Nov 16 23:21:31 done allocating datafile /apps/nosql/mongodb/data/
db/local.1, size: 128MB, took 0.9 secs
Tue Nov 16 23:21:31 allocating new datafile /apps/nosql/mongodb/data/
db/local.2, filling with zeroes...
Tue Nov 16 23:21:49 done allocating datafile /apps/nosql/mongodb/data/
db/local.2, size: 2047MB, took 17.931 secs
Tue Nov 16 23:21:49 allocating new datafile /apps/nosql/mongodb/data/
db/local.3, filling with zeroes...
Tue Nov 16 23:22:03 done allocating datafile /apps/nosql/mongodb/data/
db/local.3, size: 2047MB, took 13.377 secs
Tue Nov 16 23:22:03 allocating new datafile /apps/nosql/mongodb/data/
db/local.4, filling with zeroes...
Tue Nov 16 23:22:12 done allocating datafile /apps/nosql/mongodb/data/
db/local.4, size: 2047MB, took 9.688 secs
Tue Nov 16 23:22:12 [initandlisten] mmap() failed for /apps/nosql/
mongodb/data/db/local.4 len:2146435072 errno:12 Cannot allocate memory
Tue Nov 16 23:22:12 [initandlisten] mmap failed with out of
memory, if you're using 32-bits, then you probably need to upgrade to
64
Tue Nov 16 23:22:14 [initandlisten] exception in initAndListen
std::exception: can't map file memory, terminating
Tue Nov 16 23:22:14 dbexit:

Tue Nov 16 23:22:14 [initandlisten] shutdown: going to close listening
sockets...
Tue Nov 16 23:22:14 [initandlisten] shutdown: going to flush oplog...
Tue Nov 16 23:22:14 [initandlisten] shutdown: going to close
sockets...
Tue Nov 16 23:22:14 [initandlisten] shutdown: waiting for fs
preallocator...
Tue Nov 16 23:22:14 [initandlisten] shutdown: closing all files...
Tue Nov 16 23:22:14 closeAllFiles() finished

Tue Nov 16 23:22:14 [initandlisten] shutdown: removing fs lock...
Tue Nov 16 23:22:14 dbexit: really exiting now

[Markus Gattol]

Some people have reported similiar issues with operating system
virtualization (OpenVZ, Linux-Vserver, LXC, ...) but not Xen which is
what you're using. Did you try on a non-virtualized system?

[Chandra]

Thank Markus.I haven`t tried this on non-virtualized system....

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[Admin]

Hi Markus,

Do you have any links or docs which explains why mongo has issues with
OS virtualization??I need this info before i say to my client that
this doesn`t work...

Thanks in advance for your help....

Regards,
C

On Nov 17, 6:00 am, Chandra <nmchan...@gmail.com> wrote:
> Thank Markus.I haven`t tried this on non-virtualized system....
>

> On Wed, Nov 17, 2010 at 1:07 AM, Markus Gattol <markus.gat...@gmail.com>wrote:
>
> > Some people have reported similiar issues with operating system
> > virtualization (OpenVZ, Linux-Vserver, LXC, ...) but not Xen which is
> > what you're using. Did you try on a non-virtualized system?
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "mongodb-user" group.
> > To post to this group, send email to mongod...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > mongodb-user...@googlegroups.com<mongodb-user%2Bunsubscribe@google­groups.com>
> > .

[Eliot Horowitz]

The only issues we've seen with virtualiziation are openvz.
More info is here: http://jira.mongodb.org/browse/SERVER-1121
Do you know what you're running on?

> To unsubscribe from this group, send email to mongodb-user...@googlegroups.com.

[Admin]

Hi Eliot,

Tue Nov 16 23:21:30 sys info: Linux domU-12-31-39-06-79-A1
2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64
BOOST_LIB_VERSION=1_41

a03681a@alnncbdap02v:~> uname -a
Linux alnncbdap02v 2.6.27.19-5-default #1 SMP 2009-02-28 04:40:21
+0100 x86_64 x86_64 x86_64 GNU/Linux

It is 64bit SUSE Linux Enterprise, Virtualized (VMWARE)

> > For more options, visit this group athttp://groups.google.com/group/mongodb-user?hl=en.- Hide quoted text -
>
> - Show quoted text -

[GVP]

The problem here is ulimit.

You'll need to run the following line before you start mongod:
ulimit -v unlimited

This is a known issue with SuSE. We had to do the same thing on our
servers.

> > > For more options, visit this group athttp://groups.google.com/group/mongodb-user?hl=en.-Hide quoted text -

[Admin]

Thank you GVP.I was able to setup MASTER/SLAVE config....

> > > > For more options, visit this group athttp://groups.google.com/group/mongodb-user?hl=en.-Hidequoted text -
>
> > > - Show quoted text -- Hide quoted text -