Failed Load Library During Application-Aware Processing of Oracle Running on Linux

When backing up a Linux VM running Oracle using application-aware processing the following error occurs:

Failed load library [/u01/oracle/product/12.1.0.2/db_1/lib/libclntsh.so]. libmql1.so: cannot open shared object file: No such file or directory when performing a backup

First, check which Oracle edition is installed using this query:

select * from product_component_version;

Make sure it is not running Oracle Express edition, which Veeam Backup & Replication does not support when it is run on Linux.

 
If you are on a supported edition, you may need to re-link the Oracle libraries.
https://docs.oracle.com/database/121/UNXAR/cnfg_prd.htm#UNXAR157
 
You can relink the product executables manually by using the relink shell script located in the $ORACLE_HOME/bin directory. You must relink the product executables every time you apply an operating system patch or after an operating system upgrade.
 
Navigate to $ORACLE_HOME/bin directory and run “relink”