This is a timeout on a mongo operation creating the log collection, which is quite large (1000000 bytes), but almost certainly caused by a previous operation holding the write lock. Given bug 1351030, I'm pretty sure this is the same underlying cause and fixed by the backout.
This is a timeout on a mongo operation creating the log collection, which is quite large (1000000 bytes), but almost certainly caused by a previous operation holding the write lock. Given bug 1351030, I'm pretty sure this is the same underlying cause and fixed by the backout.