undefined symbol: mongoc_database_drop_with_opts about lua-mongo HOT 5 CLOSED

No worries, man!

Now let's see what your

$ nm -D /usr/lib/libmongoc-1.0.so | grep mongoc_database_drop

has to say.

On my Arch with libmongoc-1.9.3, it produces the following:

$ nm -D /usr/lib/libmongoc-1.0.so | grep mongoc_database_drop
000000000002f800 T mongoc_database_drop
000000000002f6d0 T mongoc_database_drop_with_opts

which shows that mongoc_database_drop_with_opts() is defined.

If your output is different, the version of the underlying binaries the package contains is probably far from 1.9.3 to say the least. Try uninstalling the package and building libmongoc from source. For example, this is what we do on our Debian Stretch images:

# libmongoc
wget https://github.com/mongodb/mongo-c-driver/releases/download/1.9.3/mongo-c-driver-1.9.3.tar.gz
tar -xvzf mongo-c-driver-1.9.3.tar.gz
cd mongo-c-driver-1.9.3
./configure --enable-extra-align=no
make
make install

# lua-mongo
luarocks install lua-mongo 1.1.0

and it works without a hitch.

After you have done the above, repeat the ldd and nm checks you've made to make sure lua-mongo is linked against the correct .so-library (the one that you built and installed from source).

from lua-mongo.

What system are you on? luarocks is unable to check versions of external dependencies. I suspect your lua-mongo module is linked against an older version of mongoc because mongoc_database_drop_with_opts() is around since mongoc-1.7.0.

Please check ldd's output for your mongo.so instance:

ldd /usr/local/lib/lua/5.1/mongo.so

to make sure it's linked against the correct version (1.9.0 or higher).

Additionally, you could try building with CMake which will strict check versions of installed dependencies prior to building and enable you to run tests. This could be helpful to discover more about the issue.

from lua-mongo.

by the way does it support replica set?

lua-mongo is a binding to mongo-c-driver, so it virtually supports everything that is supported by the underlying driver (within the provided API, of course). Since replica set is supported by the driver, it is supported by lua-mongo as well. Check out this link for example: https://docs.mongodb.com/manual/reference/connection-string/#replica-set-option

from lua-mongo.

Hey Arseny,
Thanks for your quick response.

I am on Debian 8, here is the output of ldd /usr/local/lib/lua/5.1/mongo.so

linux-vdso.so.1 (0x00007ffe051bc000)
        libmongoc-1.0.so.0 => /usr/lib/libmongoc-1.0.so.0 (0x00007f070b163000)
        libbson-1.0.so.0 => /usr/lib/libbson-1.0.so.0 (0x00007f070af36000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f070ab8b000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f070a88a000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f070a682000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f070a465000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f070b59c000)

I have installed libmongoc from Debian testing repo

libmongoc-1.0-0 1.9.3+dfsg-2 amd64 MongoDB C client library - runtime files

Thanks,
Arsen.

from lua-mongo.

I've rebuilt libmongoc and it works like a charm now even with replica set :)
Thanks for your great support!

from lua-mongo.