Symptoms
Backup on a Linux box progresses as it should, up to about 4.3MB of progress. It hangs there showing no errors.
If canceled, it shows 5MB of progress and no errors.
Cause
The cause was that the client was using a Maximum Transmission Unit (MTU) set for jumbo packers: MTU=5000
The other systems were set for standard MTU of 1500.
Resolution
Setting the MTU on the client having the issues so it matches the other systems and this will resolve the problem.
Affected Products
Avamar
Products
Avamar, Avamar Plug-in for NDMP