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I'm having this problem and don't know how to go about diagnosing it. Hope someone can give some pointers. I have 5 computers, all of them Ubuntu (one 15.04, the rest 14.04.02), sharing a quite large folder (~50G size, ~150000 files). Clocks are properly synchronized now, they weren't in the past (with differences under 2 minutes) but after fixing that the issue still happens (and besides I think small clock differences aren't critical). Of these computers, only one is a laptop being sometimes off, the rest are always running. Btsync is from the unofficial server repo: $ wajig policy btsync btsync: Installed: 2.0.0-2 The symptoms are of two kinds: after some time, a deleted folder tree reappears but without files. This, per se, is a nuissance but not that serious. However, I've recently noticed that changes in files are being rolled back. I see this clearly in some mercurial repos within the folder. After making sure the repos .hg folder is up-to-date with an off-site upstream repository, my local files show changes that are exactly their state before the last commit. I.e., their last changes have been lost. I've enabled debug logs. One question would be, will these logs tell me from which computer originates the rollback for a particular file? Also, any suggestion for a methodic diagnostic? Every time I've tried to trigger this behavior manually I've miserably failed. Thank you!

Using v1.0.134, and syncing around 30 folders containing a total of 200,000 files my BT Sync has started to hang. It does it every time now. Memory usage peaks at startup (1.2GB-1.5GB) then settles down to 800-900MB. I run BT Sync on one machine using read-only keys from client machines each having a few shares. Total about 10 machines, 30 shares. Force-closing the hung app has led to some of my peers' data files being renamed to .!sync and I believe in one case it even deleted one of my Quickbooks files. I am 99% certain it was BT Sync. Some of the other QB files had the .!sync as well. I tried to do a full dump using Process Explorer, but gave up after waiting over an hour for it. I have never done a full dump before, is that fairly normal for a process using a gig of ram? Willing to test my setup in any way you want me to for bug reporting. If someone can tell me if that is normal I will try again. 10 clients, mostly Server 2008 R2 servers, some Windows 7 64-bit with ~3 shares each, 200,000 files 1 "server", Server 2008 R2, using client shares in read-only mode ~2TB of data in total

Hi guys, I was testing btsync to see if it could replace unison in my setup, and hit a very nasty bug that seems to be frequent for a couple of users (ie http://forum.bittorr...by-older-files/ ). As it seems to be reproducible in all my tests I decided to set up a very simple environment to reproduce it. I don't think the configuration matters much as people in the forum seems to have the issue with Windows and Mac as well but here it is anyway : btsync 1.0.134 debian sid on both nodes one is amd64 the other i386. Tested also with a freebsd 9 server (Nas4Free x64) use the package provided by http://debian.yeasoft.net/btsync conf on both node (running as the user letic) : { "device_name": "LeTic - btsync Server", "listening_port" : 0, "storage_path" : "/home/letic/.btsync2", "check_for_updates" : false, "use_upnp" : false, "download_limit" : 0, "upload_limit" : 0, "webui" : { "listen" : "0.0.0.0:8888" } } Here are the steps to reproduce (host A is 1386, host B is amd64) : On Host A : mkdir btsync_test cd btsync_test Create a 1M file : dd if=/dev/urandom of=1 bs=1024 count=1024 Create a 10M file : dd if=/dev/urandom of=2 bs=1024 count=10240 Check the resulting timestamp. ie for me : ls -la total 11268 drwxr-xr-x 1 letic letic 4 May 27 12:26 . drwxrwxr-x 1 letic letic 574 May 27 12:00 .. -rw-r--r-- 1 letic letic 1048576 May 27 12:09 1 -rw-r--r-- 1 letic letic 10485760 May 27 12:10 2 On Host B : mkdir btsync_test cd btsync_test Create simple 1 and 2 file : echo "blabla" > 1 echo "test" > 2 Check the resulting timestamp. ie for me : ls -la total 24 drwxrwxr-x 2 letic letic 4096 May 27 12:45 . drwxr-xr-x 89 letic letic 12288 May 27 12:45 .. -rw-rw-r-- 1 letic letic 7 May 27 12:45 1 -rw-rw-r-- 1 letic letic 5 May 27 12:45 2 On Host A and B enable debug with debug.txt and start the btsync daemon On Host B add the btsync_test folder through the webgui. I just click on generate and choose the folder (so it use the default writable conf) In the GUI I get : /home/letic/btsync_test - 12 B in 2 files On Host A add the key from host B and choose the corresponding folder File from Host A are uploaded on Host B and replace the files that had a newer timestamp. Here is the result on Host A : ls -la total 11292 drwxrwxr-x 3 letic letic 4096 May 27 12:50 . drwxr-xr-x 89 letic letic 12288 May 27 12:47 .. -rw-rw-r-- 1 letic letic 1048576 May 27 12:09 1 -rw-rw-r-- 1 letic letic 10485760 May 27 12:10 2 -rw-r--r-- 1 letic letic 32 May 27 12:48 .SyncID -rw-r--r-- 1 letic letic 783 May 27 12:48 .SyncIgnore drwxr-xr-x 2 letic letic 4096 May 27 12:48 .SyncTrash Stopped both daemons Of course I attached both debug log, Hoping it will help you. Let me know if you need any more info. Cheers LeTic PS : Also sent to support email synclogs.tar.gz