I have a an API running that receives raw binaries, processes them, and then stores metadata about the bins in a mysql database. I have been running it for a couple days on a VM. Today the API stopped processing the mySQL commands. After using the command df-h the results were:

root@mwdb1:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       104G   99G     0 100% /
udev             16G  4.0K   16G   1% /dev
tmpfs           6.3G  364K  6.3G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none             16G     0   16G   0% /run/shm
/dev/sdb1       5.5T   42G  5.2T   1% /data

sda1 is at 100%