Btsync Runs, But Did Not Work

[user318]

Hello. I have problem with btsync. I have tested it last time today with Linux x64 1.3.94 version.

It is starts, reports no error, but do not do any work, do not write anything into log. Also, it exits only on second Ctrl-C or SIGTERM. I turned on debug:

~ $ cat ~/.btsync/debug.txtFFFF

But the log file still do not appear. If I start it in foreground mode, I see this:

~/.btsync $ /opt/btsync/btsync --config /etc/btsync/config --nodaemon --log sync.logBy using this application, you agree to our Privacy Policy and Terms.http://www.bittorrent.com/legal/privacyhttp://www.bittorrent.com/legal/terms-of-usetotal physical memory 536870912 max disk cache 2097152Using IP address XXX.XXX.XXX.XXXtest sha1: AE5BD8EFEA5322C4D9986D06680A781392F9A642test sha2: 630DCD2966C4336691125448BBB25B4FF412A49C732DB2C8ABC1B8581BD710DDtest aes: 0A940BB5416EF045F1C39458C653EA5A07FEEF74E1D5036E900EEE118E949293^C^C

It does nothing after "test aes: ...". If I run strace on the process, which stuck in that way I see this:

~ $ strace -p 28735 -ffProcess 28735 attachedrestart_syscall(<... resuming interrupted call ...>) = -1 ETIMEDOUT (Connection timed out)futex(0x4501920, FUTEX_WAKE_PRIVATE, 1) = 0futex(0x450194c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 5, {1398668412, 247165000}, ffffffff) = -1 ETIMEDOUT (Connection timed out)futex(0x4501920, FUTEX_WAKE_PRIVATE, 1) = 0futex(0x450194c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 7, {1398668472, 247366000}, ffffffff) = -1 ETIMEDOUT (Connection timed out)futex(0x4501920, FUTEX_WAKE_PRIVATE, 1) = 0futex(0x450194c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 9, {1398668532, 247562000}, ffffffff) = -1 ETIMEDOUT (Connection timed out)futex(0x4501920, FUTEX_WAKE_PRIVATE, 1) = 0futex(0x450194c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 11, {1398668592, 247750000}, ffffffff) = ? ERESTART_RESTARTBLOCK (Interrupted by signal)--- SIGINT {si_signo=SIGINT, si_code=SI_KERNEL, si_value={int=943012408, ptr=0x4b534d2038353a38}} ---rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x724b0ce15b10}, NULL, 8) = 0rt_sigreturn()                          = -1 EINTR (Interrupted system call)futex(0x450194c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 11, {1398668592, 247750000}, ffffffff) = ? ERESTART_RESTARTBLOCK (Interrupted by signal)--- SIGINT {si_signo=SIGINT, si_code=SI_KERNEL, si_value={int=943012408, ptr=0x4b534d2038353a38}} ---+++ killed by SIGINT +++

Config file have nothing special:

{  "device_name": "user",  "listening_port" : 14444,  "storage_path" : "/home/user/.btsync",  "pid_file" : "/home/user/.btsync/btsync.pid",  "check_for_updates" : false,  "use_upnp" : false,  "download_limit" : 10240,                         "upload_limit" : 10240,  "webui" :  {    "listen" : "127.0.0.1:8888",    "login" : "admin",    "password" : "password"  }  ,  "shared_folders" :  [    {      "secret" : SECRET,      "dir" : "/home/user/sync",      "use_relay_server" : true,      "use_tracker" : true,      "use_dht" : true,      "search_lan" : false,      "use_sync_trash" : true,      "known_hosts" :      [      ]    }  ]}

[denis4inet]

Hi,

Could you represent full output of 

$ strace  /opt/btsync/btsync --config /etc/btsync/config --nodaemon --log sync.log

 

Thanks.

[user318]

Here is run of:

strace -ftt /opt/btsync/btsync --config /etc/btsync/config --nodaemon --log sync.log

http://pastebin.com/LBWcnm84

I stopped it by sending SIGINT twice. If I do "telnet localhost 14444" after the run - there is no any change in the strace log.

 

PS. Also I have notice, that I have IP XXX.XXX.XXX.106 and btsync for some reason sends couple of UDP packets to XXX.XXX.XXX.97, which is the first allowed host IP in my subnetwork (mask /27):

tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes22:43:23.751360 IP (tos 0x0, ttl 64, id 27890, offset 0, flags [DF], proto UDP (17), length 40)    XXX.XXX.XXX.106.5351 > XXX.XXX.XXX.97.5351: [udp sum ok] UDP, length 1222:43:23.751435 IP (tos 0x0, ttl 64, id 27891, offset 0, flags [DF], proto UDP (17), length 40)    XXX.XXX.XXX.106.5351 > XXX.XXX.XXX.97.5351: [udp sum ok] UDP, length 12^C

[denis4inet]

5351/UDP used for configuring NAT PMP, therefore UDP segment sent to this port to expected gateway\router host.

[user318]

Why it is not getting default gateway from the routing table?

[denis4inet]

It is not implemented yet. Does your router support NAT-PMP and do you need this feature?

[user318]

This host is not a router, but I do not need this functionality anyway, because of public IP.

Have any ideas on the main topic?

[denis4inet]

1. You can disable NAT PMP and UPNP  via advanced options.

2. I am working on it. 

[user318]

Thank you.

 

> 1. You can disable NAT PMP and UPNP  via advanced options.

UPNP is disabled, but I don't know option name for NAT PMP. Google and User Guide did not helped.

[denis4inet]

Yes, disabling of NAT PMP will be implemented in the feature release.

[denis4inet]

user318, 

Maybe you built your pthread lib with specific gcc flags, or glibc?

[user318]

How specific should they be? To report not any error. I am using gentoo system, it have glibc version 2.17 with enabled hardened patches:

sys-libs/glibc-2.17:2.2  USE="hardened (multilib) -debug -gd -nscd -profile (-selinux) -suid -systemtap -vanilla"
 

[denis4inet]

Did you test on another linux dists, or you use only Gentoo?

[miche]

I've installed Sync and configured the folders.  After indexing, the file counts don't match and it doesn't seem to be syncing.  Is there a way to force the sync?  Why would the file count vary?

[user318]

> Did you test on another linux dists, or you use only Gentoo?

Not yet. I want to run btsync on this particular host. So I think there will be small benefit from testing it on other system. Only in case I doing something terribly wrong.