perfSONAR User Q&A and Other Discussion

[Takatoshi Ikeda <>]

Dear Aaron-san,

I appreciate your great work.
I confirm new BWCTL 1.5.2-6 works fine!!


$ bwctl -V
Version: 1.5.2-6

$ bwctl -c XXXXXXXX -u
bwctl: Using tool: iperf
bwctl: 16 seconds until test results available

RECEIVER START
bwctl: start_endpoint: 3612150229.201609
bwctl: run_endpoint: receiver: XXXXXXXXXXXXXX
bwctl: run_endpoint: sender: YYYYYYYYYYYYY
bwctl: exec_line: iperf -B XXXXXXXXXXX -s -f b -m -p 5295 -u -t 10
bwctl: run_tool: tester: iperf
bwctl: run_tool: receiver: XXXXXXXXXXX
bwctl: run_tool: sender: YYYYYYYYYYYYY
bwctl: start_tool: 3612150232.631415
------------------------------------------------------------
Server listening on UDP port 5295
Binding to local address XXXXXXXXXXXXXX
Receiving 1470 byte datagrams
UDP buffer size: 124928 Byte (default)
------------------------------------------------------------
[  8] local XXXXX port 5295 connected with YYYYYYYY port 5295
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total 
Datagrams
[  8]  0.0-10.0 sec  1252440 Bytes  1000009 bits/sec   0.002 ms    0/  852 
(0%)
bwctl: stop_tool: 3612150247.138371
bwctl: stop_endpoint: 3612150247.138639


Thank you,
-Takatoshi Ikeda

On Wed, 18 Jun 2014 18:17:17 +0000
Aaron Brown 
<>
 wrote:

> Hey Takatoshi,
> 
> I was able to reproduce and figured out what was happening. I’ve updated 
> the bwctl version in the repository to 1.5.2-6 which should fix this issue. 
> Let me know if you have any problems with it.
> 
> Cheers,
> Aaron
> 
> On Jun 18, 2014, at 6:11 AM, Takatoshi Ikeda 
> <>
>  wrote:
> 
> > Dear Aaron-san,
> > 
> > This is the result.
> > I did downgrade to avoid this issue but I've upgraded again for 
> > the test. Still, I have same issue.
> > 
> > 
> > *Receiver
> > # /etc/init.d/iptables stop
> > iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
> > iptables: Flushing firewall rules:                         [  OK  ]
> > iptables: Unloading modules:                               [  OK  ]
> > 
> > # bwctl -V
> > Version: 1.5.2-5
> > 
> > 
> > *Sender
> > # /etc/init.d/iptables stop
> > iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
> > iptables: Flushing firewall rules:                         [  OK  ]
> > iptables: Unloading modules:                               [  OK  ]
> > 
> > # bwctl -V
> > Version: 1.5.2-5
> > 
> > # bwctl -c perf-sin -u -x
> > bwctl: Using tool: iperf
> > bwctl: 15 seconds until test results available
> > 
> > RECEIVER START
> > bwctl: Remote 'client' (Sender) never initiated handshake: listening at
> > port(6015) - canceling
> > 
> > RECEIVER END
> > 
> > SENDER START
> > 
> > SENDER END
> > 
> > 
> > Best Regards,
> > -Takatoshi Ikeda
> > 
> > 
> > 
> > On Tue, 17 Jun 2014 12:55:20 +0000
> > Aaron Brown 
> > <>
> >  wrote:
> > 
> >> Hi Takatoshi,
> >> 
> >> That’s strange, given the error being seen. Could you run the bwctl 
> >> command with the “-x” flag, and send the results? That should show both 
> >> the send and receive side test messages.
> >> 
> >> Cheers,
> >> Aaron
> >> 
> >> On Jun 16, 2014, at 9:09 PM, Takatoshi Ikeda 
> >> <>
> >>  wrote:
> >> 
> >>> Aaron-san,
> >>> 
> >>> It's only UDP iperf test. 
> >>> I do scheduled test with TCP but it works fine.
> >>> 
> >>> Regards,
> >>> -Takatoshi Ikeda
> >>> 
> >>> On Mon, 16 Jun 2014 13:17:12 +0000
> >>> Aaron Brown 
> >>> <>
> >>>  wrote:
> >>> 
> >>>> Hi Takatoshi,
> >>>> 
> >>>> Is it only the UDP iperf that’s failing, or do other tests fail as 
> >>>> well?
> >>>> 
> >>>> Cheers,
> >>>> Aaron
> >>>> 
> >>>> On Jun 14, 2014, at 10:21 AM, Takatoshi Ikeda 
> >>>> <>
> >>>>  wrote:
> >>>> 
> >>>>> Dear Aaron,
> >>>>> 
> >>>>> Yes. I didn't modify the port for the iperf test.
> >>>>> In addition, I did that test without iptables. 
> >>>>> ( turn off it by "service iptables stop" )
> >>>>> 
> >>>>> regards,
> >>>>> -Takatoshi Ikeda
> >>>>> 
> >>>>> 
> >>>>> On Fri, 13 Jun 2014 14:37:24 +0000
> >>>>> Aaron Brown 
> >>>>> <>
> >>>>>  wrote:
> >>>>> 
> >>>>>> Hi Takatoshi,
> >>>>>> 
> >>>>>> The error message that’s being seen is a common firewall error. Are 
> >>>>>> they both using the same bwctld.conf?
> >>>>>> 
> >>>>>> Cheers,
> >>>>>> Aaron
> >>>>>> 
> >>>>>> On Jun 13, 2014, at 2:36 AM, Takatoshi Ikeda 
> >>>>>> <>
> >>>>>>  wrote:
> >>>>>> 
> >>>>>>> Hello, 
> >>>>>>> 
> >>>>>>> After I upgrade the all the packages on our pSPT 3.3 system by yum.
> >>>>>>> BWCTL test with UDP becomes failure.
> >>>>>>> When I downgrade only BWCTL package to 1.5.1-20, it works again.
> >>>>>>> 
> >>>>>>> Followings are the detail information.
> >>>>>>> Do you have any idea?
> >>>>>>> 
> >>>>>>> 
> >>>>>>> -OS
> >>>>>>>> uname -a
> >>>>>>> Linux perf-sin.tein-jp.net 2.6.32-431.17.1.el6.aufs.web100.x86_64 
> >>>>>>> #1 SMP Thu May 8 13:20:43 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux
> >>>>>>> 
> >>>>>>> -BWCTL
> >>>>>>>> rpm -qa|grep bwctl
> >>>>>>> bwctl-client-1.5.2-5.el6.x86_64
> >>>>>>> bwctl-server-1.5.2-5.el6.x86_64
> >>>>>>> 
> >>>>>>> -BWCTL test with UDP
> >>>>>>>> bwctl -c XXXXXXX -u
> >>>>>>> bwctl: Using tool: iperf
> >>>>>>> bwctl: 16 seconds until test results available
> >>>>>>> 
> >>>>>>> RECEIVER START
> >>>>>>> bwctl: start_endpoint: 3611628623.920596
> >>>>>>> bwctl: run_endpoint: receiver: XXXXXXXXXXX
> >>>>>>> bwctl: run_endpoint: sender: XXXXXXXXXXXX
> >>>>>>> bwctl: Remote 'client' (XXXXXXXXXXXXXX) never initiated 
> >>>>>>> handshake:listening at port(6116) - canceling
> >>>>>>> bwctl: stop_endpoint: 3611628629.310156
> >>>>>>> 
> >>>>>>> 
> >>>>>>> -Receiver log
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[48187]: FILE=sapi.c, LINE=353, 
> >>>>>>> Connection to
> >>>>>>> (YYYYYYYYYYYYYYYY:4823) from (XXXXXXXXXXXXXX:54479)
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[48187]: FILE=sapi.c, LINE=510,
> >>>>>>> ControlSession([YYYYYYYYYYYY]:4823) accepted from
> >>>>>>> userid(nil):(XXXXXXXXXXXXXX:54479)
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[26647]: FILE=bwctld.c, LINE=791, 
> >>>>>>> Test Reservation Information: Current Time: 1402636855, Fuzz: 
> >>>>>>> 1.976562, Reservation Start: 1402636858, Reservation End: 
> >>>>>>> 1402636873, Test Start Time: 1402636860
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[26647]: FILE=bwctld.c, LINE=442, 
> >>>>>>> Reservation Status: time=1402636855 action=new 
> >>>>>>> sender=XXXXXXXXXXXXXX receiver=YYYYYYYYYYYY tool=iperf 
> >>>>>>> res_start=1402636858 res_end=1402636872 test_start=1402636860
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[26647]: FILE=bwctld.c, LINE=822, 
> >>>>>>> Time Slots
> >>>>>>> Jun 13 14:20:55 perf-sin bwctld[26647]: FILE=bwctld.c, LINE=827, 
> >>>>>>> Time Slot 1: 1402636858 to 1402636873: 1 reservations
> >>>>>>> Jun 13 14:21:00 perf-sin bwctld[48188]: FILE=endpoint.c, LINE=864, 
> >>>>>>> Endpoint peer connection could not accept(): listening at 
> >>>>>>> port(6052) : Interrupted system call
> >>>>>>> Jun 13 14:21:00 perf-sin bwctld[48188]: FILE=endpoint.c, LINE=873, 
> >>>>>>> Endpoint: Signal = 14
> >>>>>>> Jun 13 14:21:00 perf-sin bwctld[26647]: FILE=bwctld.c, LINE=442, 
> >>>>>>> Reservation Status: time=1402636860 action=remove 
> >>>>>>> sender=XXXXXXXXXXXXXX receiver=YYYYYYYYYYYY tool=iperf 
> >>>>>>> res_start=1402636858 res_end=1402636872 test_start=1402636860
> >>>>>>> 
> >>>>>>> -Sender log
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[56212]: FILE=sapi.c, LINE=353, 
> >>>>>>> Connection to (XXXXXXXXXXXXXX:4823) from (YYYYYYYYYYYY:34829)
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[56212]: FILE=sapi.c, LINE=510, 
> >>>>>>> ControlSession(XXXXXXXXXXXXXX:4823) accepted from 
> >>>>>>> userid(nil):(YYYYYYYYYYYY:34829)
> >>>>>>> Jun 13 14:20:55 perf-kote bwctl: Using tool: iperf
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[29146]: FILE=bwctld.c, LINE=791, 
> >>>>>>> Test Reservation Information: Current Time: 1402636855, Fuzz: 
> >>>>>>> 2.046875, Reservation Start: 1402636858, Reservation End: 
> >>>>>>> 1402636873, Test Start Time: 1402636860
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[29146]: FILE=bwctld.c, LINE=442, 
> >>>>>>> Reservation Status: time=1402636855 action=new 
> >>>>>>> sender=XXXXXXXXXXXXXX receiver=YYYYYYYYYYYY tool=iperf 
> >>>>>>> res_start=1402636858 res_end=1402636872 test_start=1402636860
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[29146]: FILE=bwctld.c, LINE=822, 
> >>>>>>> Time Slots
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[29146]: FILE=bwctld.c, LINE=827, 
> >>>>>>> Time Slot 1: 1402636858 to 1402636873: 1 reservations
> >>>>>>> Jun 13 14:20:55 perf-kote bwctl: 16 seconds until test results 
> >>>>>>> available
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[56212]: FILE=endpoint.c, 
> >>>>>>> LINE=1455, _BWLEndpointStatus: Child #56213 exited from signal #11
> >>>>>>> Jun 13 14:20:55 perf-kote kernel: bwctld[56213]: segfault at 0 ip 
> >>>>>>> (null) sp 00007ffffb82cbd8 error 14 in bwctld 
> >>>>>>> (deleted)[400000+40000]
> >>>>>>> Jun 13 14:20:55 perf-kote bwctld[29146]: FILE=bwctld.c, LINE=442, 
> >>>>>>> Reservation Status: time=1402636855 action=remove 
> >>>>>>> sender=XXXXXXXXXXXXXX receiver=YYYYYYYYYYYY tool=iperf 
> >>>>>>> res_start=1402636858 res_end=1402636872 test_start=1402636860
> >>>>>>> 
> >>>>>>> 
> >>>>>>> -- 
> >>>>>>> Takatoshi Ikeda 
> >>>>>>> <>
> >>>>>>> 
> >>>>> 
> >>>>> -- 
> >>>>> Takatoshi Ikeda 
> >>>>> <>
> >>>>> 
> >>> 
> >>> -- 
> >>> Takatoshi Ikeda 
> >>> <>
> >>> 
> > 
> > -- 
> > Takatoshi Ikeda 
> > <>
> > 

-- 
Takatoshi Ikeda 
<>