additional backup file

Hi, I find out there is several additional file

there is db_user.php db_user.sync-conflict-20160401-100237.php

what is sync-conflict means? I think it will blow up the number of files since at first file already exist… is it possible to just remove the conflict file in remote?

A conflict means two nodes report a change to the same file at the same time.

It is up to you to decide which file to keep. If you don’t need anything from the file marked conflict then you can just delete it.