I have MongoDB v3.2.6 installed on my mac macOs High Sierra v10.13.1 and I am trying to make a backup before I upgrade.
I have an instance of $ mongod running in one window using defaut db location and default port.
It is my local database, it is not protected by a password and does not require ssl conncetions.
I can access my databases find using $ mongo or Robomongo but when I run $ mongodump or $ mongodump --db mydatabase I get the following error
[1] 1815 segmentation fault mongodump
UPDATE: I have tried to run mongostat and now I get the following error :
[1] 2404 bus error mongodump
Here is the log I get when starting the db with $ mongod :
2017-12-25T12:36:26.642+0000 I CONTROL [initandlisten] MongoDB starting : pid=3216 port=27017 dbpath=/data/db 64-bit host=MBP-de-Kevin.home
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] db version v3.2.6
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] git version: 05552b562c7a0b3143a729aaa0838e558dc49b25
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2m 2 Nov 2017
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] allocator: system
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] modules: none
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] build environment:
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] distarch: x86_64
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] target_arch: x86_64
2017-12-25T12:36:26.643+0000 I CONTROL [initandlisten] options: {}
2017-12-25T12:36:26.644+0000 I - [initandlisten] Detected data files in /data/db created by the 'mmapv1' storage engine, so setting the active storage engine to 'mmapv1'.
2017-12-25T12:36:26.653+0000 I JOURNAL [initandlisten] journal dir=/data/db/journal
2017-12-25T12:36:26.654+0000 I JOURNAL [initandlisten] recover : no journal files present, no recovery needed
2017-12-25T12:36:26.674+0000 I JOURNAL [durability] Durability thread started
2017-12-25T12:36:26.675+0000 I JOURNAL [journal writer] Journal writer thread started
2017-12-25T12:36:26.894+0000 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data'
2017-12-25T12:36:26.894+0000 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
2017-12-25T12:36:26.894+0000 I NETWORK [initandlisten] waiting for connections on port 27017
What am I doing wrong and How can I debug?
I was experiencing the same problem. I am on macOS High Sierra 10.13.3. My mongo version was mongodb 3.2.7. I read this in the documentation of mongodump:
MAC OSX SIERRA AND GO 1.6 INCOMPATIBILITY
Users running on Mac OSX Sierra require the 3.2.10 or newer version of mongodump.
I upgraded to mongodb 3.6.2 and I my issue was resolved.