[mongodb-user] User Exception 10085:can't map file memory

[Andreas Jung]

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The following error occurs within the following test scenario:

- mongod (1.4.2, 64-bit on Linux) is started with a fresh
database directory + option --master

- I run a unittest (Python) performing a simple map-reduce test

- I terminate mongod and restart it using the same options

- re-running the map-reduce test causes the error below

The error message is weird especially I am running a 64-bit
version of OpenSuse 11.1 (I think) and a 64-bit version of mongodb!?

Andreas

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Sun May 16 14:05:01 User Exception 10085:can't map file memory
Sun May 16 14:05:01 Caught Assertion in insert , continuing
Sun May 16 14:05:01 insert test._CloudComputationTests__topics exception
userassert:can't map file memory 0ms
mmap() failed for data/db/mongodb/test.0 len:67108864 errno:12 Cannot
allocate memory
mmap failed with out of memory, if you're using 32-bits, then you
probably need to upgrade to 64
Sun May 16 14:05:01 User Exception 10085:can't map file memory
mmap() failed for data/db/mongodb/test.0 len:67108864 errno:12 Cannot
allocate memory
mmap failed with out of memory, if you're using 32-bits, then you
probably need to upgrade to 64
Sun May 16 14:05:01 User Exception 10085:can't map file memory
Sun May 16 14:05:01 Caught Assertion in remove , continuing
Sun May 16 14:05:01 remove query: {} exception userassert:can't map
file memory 0ms
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[Kristina Chodorow]

Can you send the log preamble from when the database starts up, as well as uname -a?

[Andreas Jung]

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Addendum: restarting mongodb w/o --master option option
+ running the unittest works as it should.

Andreas

Andreas Jung wrote:
> The following error occurs within the following test scenario:
>
> - mongod (1.4.2, 64-bit on Linux) is started with a fresh
> database directory + option --master
>
> - I run a unittest (Python) performing a simple map-reduce test
>
> - I terminate mongod and restart it using the same options
>
> - re-running the map-reduce test causes the error below
>
> The error message is weird especially I am running a 64-bit
> version of OpenSuse 11.1 (I think) and a 64-bit version of mongodb!?
>
> Andreas
>

> --------------
>
>
> Sun May 16 14:05:01 User Exception 10085:can't map file memory
> Sun May 16 14:05:01 Caught Assertion in insert , continuing
> Sun May 16 14:05:01 insert test._CloudComputationTests__topics exception
> userassert:can't map file memory 0ms
> mmap() failed for data/db/mongodb/test.0 len:67108864 errno:12 Cannot
> allocate memory
> mmap failed with out of memory, if you're using 32-bits, then you
> probably need to upgrade to 64
> Sun May 16 14:05:01 User Exception 10085:can't map file memory
> mmap() failed for data/db/mongodb/test.0 len:67108864 errno:12 Cannot
> allocate memory
> mmap failed with out of memory, if you're using 32-bits, then you
> probably need to upgrade to 64
> Sun May 16 14:05:01 User Exception 10085:can't map file memory
> Sun May 16 14:05:01 Caught Assertion in remove , continuing
> Sun May 16 14:05:01 remove query: {} exception userassert:can't map
> file memory 0ms

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[Eliot Horowitz]

Opensuse sets a shell virtual size limit.
Look at ulimit -a
You'll need to make that unlimited

> <lists.vcf>

[GVP]

If you're running SUSE you probably need at least:
ulimit -v unlimited
ulimit -n (very big, well over the normal 1024)

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[Andreas Jung]

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Eliot Horowitz wrote:
> Opensuse sets a shell virtual size limit.
> Look at ulimit -a
> You'll need to make that unlimited
>
>

Thanks - that worked.

Perhaps this should be added to the sysadmin section of the docs.

Andreas

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