How to check integrity of binaries in Artifactory database against filestore?

ISSUE: Artifactory errors out with [ERROR] (o.a.r.c.e.GlobalExceptionMapper:48) – Binary provider has no content for … in artifactory.log

POSSIBLE REASONS:
1. Artifactory's data folder is not configured correctly, pointing to a wrong directory
1. binary checksum files in Artifactory's data folder is moved/removed externally, without being known to Artifactory

TROUBLESHOOTING:
You may run following method to quickly check integrity of binaries in the database against filestore (assumes that you have a single filestore, such as shared NFS)

1. Get a list of binaries from Artifactory's database by querying sha1 values from "binaries" table

e.g. For MySQL:
a. SELECT sha1 FROM binaries Order By sha1 ASC;
b. save the output as a file

2. Get a list of binaries from Artifactory's filestore.

a. Go to Artifactory's filestore folder (e.g. ../ha-data/filestore/)
b. Run following command
find . -mindepth 2 -type f -printf '%fn' | sort >> binaries-in-filestore.out

3. Find the differences between the results above using your favorite diff tool
e.g. 
User-added image

RECOVERY
Recover the missing binary files from your backup locations