Multiple problems with Bittorrent Sync between two Synology NAS

[vrrp]

Hi,

Having had a ton of issues that I've been able to surmount (namely permissions issues that I could only fix by copying all my files to a new share on the same source NAS), I'm now unable to get this working, and here I came for help.

The purpose of my bitsync install is to keep a working server in my company synced with a backup server which I'll keep home after the initial sync (~3.3Tb) has taken place locally.

My target NAS is using bittorent sync 1.4, as it is the latest available version for qoriq based Synology NAS, but I have been able to install everything, setup a shared folder and start the sync process, so to my untrained eye this does not seem to be the source of my problems. Source NAS is running the latest version available through synocommunity. Target NAS only has read permissions (thus my source/target names for the NAS').

Problem 1: My source folder is ~3.31 Tb; Sync only "sees" 2.94 Tb. It shows "indexing" for days, but it does not seem to be able to index the latest ~370Gb or so. (picture 1). Permissions' issues with the original share were what made me use the nuclear option, create a share and define all the permissions from scratch, sos I'm pretty sure this isn't a permissions issue as outlined in the FAQ and in many forum posts.

Problem 2: Target NAS synced folder stopped at around 260Gb, and it stopped increasing. Although both NAS are currently connected to the same gigabit switch, transfer rates went from ~10Mb/s with peaks of ~30Mb/s to 1-2kb/s. I have since removed the shared folder in the target NAS, in the hopes that this would decrease the load on the server and improve the speed with which it was being indexed. Hasn't happened. Any ideas on why it stopped syncing with more than 90% to go?

Problem 3: Bittorent Sync's web interface stopped generating the QR codes for syncing with mobile apps. (picture 2) This was working before, and I have been able to successfully link the shared folder with my iPhone.

Two related questions:

1 - Bittorrent Sync generates a ton of logs and journals, any hints on what I should try to search for in order to try to understand what the problems are? Also, why would I have a B07A0AB68F26F6E0CCEEF0CFBBC7FBBFEFAB3455.5711241.db file at /usr/local/bittorentsync/var that is ~3.6Gb and growing? It seems quite large, what is supposedly stored in this database?

2 - I've had a (quite bizarre, IMHO) behaviour where the files in a test source folder were deleted when I removed the shared folder in the source NAS through Sync's web interface. I believe this is not intended behaviour, but this is in a way hold me back trying the "nuke" option of uninstall/reinstall and starting from scratch.

I realise these may not be the cleverest questions, but I've pretty much exhausted all the how-to's and forum material that I could find and I'm stuck.

Any help towards a despairing noob would be dearly appreciated.

Thanks in advance,

Vasco

[Harold Feit]

Sync support has their own forums.