My virtual memory limit (ulimit -v -H) is lower than the size of my data. Is there a way for me to use MongoDB using this configuration?

[Joel Thibault]

On the host I want to run my MongoDB instance, I'm limited to 250 GB of virtual memory.  I have more than 250 GB of data I wish to store.  My interpretation of what I've read is that MongoDB will need to mmap my whole DB to the virtual memory space, and therefore I can't run it on this host.  Is that correct?

I have attempted to use this host, but once my DB gets large enough I can no longer use it.  My log has many errors like the following:

Tue Apr 24 08:51:17 [conn33] insert bjorn.samples exception: file <xxxxxx>/data/bjorn.27 open/c

reate failed in createPrivateMap (look in log for more information) code:13636 12ms

Tue Apr 24 08:51:17 [conn33] ERROR: mmap private failed with out of memory. (64 bit build)

Tue Apr 24 08:51:17 [conn33] Assertion: 13636:file <xxxxxx>/data/bjorn.27 open/create failed in

 createPrivateMap (look in log for more information)

I'm trying to get access to a host without this virtual memory limitation, but are there other options available to me?

Thanks,

Joel Thibault

[Sam Millman]

Is sharding out of the question?

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[A. Jesse Jiryu Davis]

Joel, that's correct -- Mongo has no set minimum for the amount of physical memory, but it does need to map all its database files, as well as the journal, into virtual memory.

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[Joel Thibault]

I am not familiar with sharding so I will read about that.  Thanks, Sammaye.

On Monday, April 30, 2012 3:29:04 PM UTC-4, Sammaye wrote:

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