perfSONAR User Q&A and Other Discussion

[Gaetano Vocca <>]

Hello Brian,

thank you for your answer.

On the test machines I am using there is no firewall, it is pure lab equipment so I removed all the iptables and similar services.

Moreover the failure occurs about once out of 5 tests, it is not systematic.

I will try and let you know

Gaetano

On 28 Jan 2015, at 21:06, Brian Tierney <> wrote:

You could try increasing die_by and/or control_timeout   in /etc/bwctld/bwctld.conf, but are you sure there is not a firewall blocking the test?

That will will also cause the test to time out. You need to make sure the full range of owamp and bwctl ports is open.

On Wed, Jan 28, 2015 at 8:04 AM, Gaetano Vocca <> wrote:

Dear all,

While performing some test campaign I receive this kind of output quite often, both when using owamp and iperf3 as tool.

Though I know there is some slowness in our network I wonder if there is any parameter that I can use with bwping or bwctl to make this frequency decrease, even at the cost of slowing down a bit the test execution speed.

 

Thank you

Gaetano

 

<TEST_CONFIG>;

tool: owamp;

user: ;

limit_class: root;

start_time: 1422458470;

is_host_sender: NO;

tos: 0;

client: 192.168.12.103;

sender: 192.168.12.17;

receiver: 192.168.12.103;

duration: 10;

use_udp: NO;

bandwidth: 0;

window: 0;

len_buffer: 0;

report_interval: 0;

parallel_streams: 0;

units:

output_format:

use_dynamic_window_sizing: NO;

</TEST_CONFIG>;

<RECV_OUTPUT>;

owampd[1120]: WARNING: No limits specified.;

owampd[1121]: Connection to ([192.168.12.103]:5495) from ([192.168.12.17]:56318);

owampd[1121]: ControlSession([192.168.12.103]:5495) accepted from userid(nil):([192.168.12.17]:56318);

owampd[1120]: ResReq ALLOWED: default:request:bandwidth = 672 (result = 0, limit = 0);

owampd[1120]: ResReq ALLOWED: default:request:disk = 450 (result = 0, limit = 0);

owampd[1120]: owampd: exiting...;

owampd[1121]: OWPDQuery: Unable to contact parent;

owampd[1121]: OWPDQuery: Unable to contact parent;

owampd[1120]: owampd: exited.;

;

bwctl: local tool did not complete in allocated time frame and was killed;

</RECV_OUTPUT>;

<SEND_OUTPUT>;

owping: FILE=protocol.c, LINE=2703, _OWPReadFetchAck: Unable to read from socket.;

owping: FILE=owping.c, LINE=1838, Unable to fetch data for sid(c0a80c67d8737ceb7450c8fdc8f1a4fa);

Approximately 8.1 seconds until results available;

</SEND_OUTPUT>;

--

Brian Tierney, http://www.es.net/tierney
Energy Sciences Network (ESnet), Berkeley National Lab
http://fasterdata.es.net