I was running an update command on a capped collection and the server suddenly started showing the following message:

Thu May 10 12:47:07 DBClientCursor::init call() failed
Thu May 10 12:47:07 query failed : ***** to: localhost
Error: error doing query: failed
Thu May 10 12:47:07 trying reconnect to localhost
Thu May 10 12:47:07 reconnect localhost ok
Thu May 10 12:47:07 DBClientCursor::init call() failed

I couldn't find anything in the logs but I happened to check dmesg and it had the entry

[ 49.842846] init: mongodb main process (1074) terminated with status 100

And when I tried to start mongo again I got another entry in dmesg

[ 225.928777] init: mongodb main process (1092) terminated with status 100

The only thing that I can think of being the problem is that the VM I'm using is almost out of space

=> / is using 96.3% of 1.70GB

I would imagine that if this is an issue with space then there should be something in the logs or something to point me in the right direction.