Motivation: All the backup systems are either slow or crashing or both on my backup.

Tried duply:

• works but very slow:

--------------[ Backup Statistics ]--------------
StartTime 1547198362.85 (Fri Jan 11 09:19:22 2019)
EndTime 1547209509.04 (Fri Jan 11 12:25:09 2019)
ElapsedTime 11146.19 (3 hours 5 minutes 46.19 seconds)
SourceFiles 3065438
SourceFileSize 585041709586 (545 GB)
NewFiles 0
NewFileSize 0 (0 bytes)
DeletedFiles 0
ChangedFiles 0
ChangedFileSize 0 (0 bytes)
ChangedDeltaSize 0 (0 bytes)
DeltaEntries 0
RawDeltaSize 0 (0 bytes)
TotalDestinationSizeChange 111 (111 bytes)
Errors 0
-------------------------------------------------

--- Finished state OK at 12:25:15.000 - Runtime 03:06:43.000 ---

Tried restic:

• crashes with OOM

Goals for bakare:

• fast
• using max bandwidth
• use max cpu
• use max disk I/O
• memory usage limit
• encryption by default - asymmetric, creates a keypair for you
• deduplication of file data
• fuzzy find by file name in stored files
• failure to process one file should not affect any other files
• intermittent network failures should not make the whole process fail (test with random packet drop)

Nice to have:

• daemon that listens for file events and updates a list of files to be backed up on the next backup run

Implementation:

• test with randomly created dirs and files, with property based tests and fuzzer
• see if we can use salsa for recomputaiton