Three-Way Setup: Nas + Lan + Web

[ggibby]

Hello All,

 

I've poked around and apologize in advance if I've just missed this topic somewhere.

 

My setup, all with BitTorrent Sync 1.3.94:

A: QNAP TS-419P II 

B: Windows 7 PC on LAN with NAS

C: Windows 8 PC at work connecting via internet

 

Same information is being synced on each machine:

"Music" and "Photos" folders

 

I am a former MCSE and have been using Allway Sync on LAN and USB
prior to this project (and still do for some tasks, but only under manual control).

 

A to C was set up first by giving C the secrets from A,

Then installed on B, using the A secrets.

 

All folders are Full Control, since I modify files on B and C,

with A being the RAID backup

 

What I observe is happening in the BitTorrent Devices tabs on the Windows boxes:

A <->B (fine)

A <->C (fine)

B <->C (huh?)

 

Never gave B the secrets for C, and yet there is traffic between them,

which seems redundant and kind of annoying.

 

Is a V-shape sync pattern possible with BitTorrent Sync?

There is *something* I'm missing...

 

Thanks in advance,

-G

[nellie4568]

If it's the same secret between all 3 setups then all 3 will exchange data with each other and remain synchronized. This is on purpose. The btsync protocol figures out the fastest way of distributing the data in chunks across all devices. The whole point of using BTsync is for all devices to exchange data with each other.

 

In your scenario, what if A suddenly goes offline? At least with all 3 running the same sync B and C will exchange data, then share that when A comes back online. 

 

If you MUST have it in a V-shape then uncheck relay/tracker/DHT (rightclick share -> folder info -> preperties) on each device and only use predefined hosts. Then you can set it so B only talks to A. And C only talks to A. But A talks to both others. 

[ggibby]

If it's the same secret between all 3 setups then all 3 will exchange data with each other and remain synchronized.

Thank you for the clarification about secrets. 

You make an excellent point about device failure,

and this is supposed to be a private cloud, right? ;-)

 

I will look at the settings you directed me to.

The initial reaction came because of all the reported traffic

between work © and home (A & , which seemed highly redundant

and slow.

To wit: I add 40 songs to the Music folder on B,

which kicks off a sync with A and C, which then sync with each other.

 

There may be some flag I don't know about

(or a feature yet to be built) that might allow for sequencing

of such to reduce network traffic and prioritize speed.

 

Again, thanks for helping me understand.

 

-G