perfSONAR User Q&A and Other Discussion

[Murilo Vetter <>]

Hi list,

I am running a lab here in RNP, using 4 perfsonar nodes, 2 with CentOS and 2 with Debian.

I scheduled 2 meshes, one with CentOS hosts and another with Debian hosts, running powstream tests and iperf3 tcp tests.

All is working, except the powstream tests between CentOS. I couldn't figure out what could be.

When I check powstream process on CentOS, it appears like this:

# ps aux | grep pow
pschedu+  6756  0.0  0.1 266752 18940 ?        S    11:00   0:00 /usr/bin/python /usr/libexec/pscheduler/commands/../classes/tool/powstream/run
pschedu+  8248  0.0  0.0   7564   936 ?        S    11:03   0:00 /usr/bin/powstream -p -d /var/lib/pscheduler/tool/powstream/18bf28d6-fdb1-431a-8262-fc4e3614e321-2017Aug11T140001195158 -s 0 -c 600 -i 0.1 -t -S 200.237.196.43 [200.237.196.45]:861
root      8254  0.0  0.0 112668   964 pts/0    S+   11:03   0:00 grep --color=auto pow

When I check powstream process on Debian, it appears like this:

# ps aux | grep pow
pschedu+  5596  0.0  0.2 128864 42712 ?        S    Aug10   0:20 /usr/bin/python /usr/lib/pscheduler/commands/../classes/tool/powstream/run
pschedu+  5606  0.0  0.0  13852  2548 ?        S    Aug10   0:04 /usr/bin/powstream -p -d /var/lib/pscheduler/tool/powstream/66b434fa-041f-49da-9247-7a75ffd10d1a-2017Aug10T201539801126 -s 0 -c 600 -i 0.1 -t -S 200.237.196.42 [200.237.196.44]:861
pschedu+ 15430  0.0  0.0  13848   336 ?        Ss   11:07   0:00 /usr/bin/powstream -p -d /var/lib/pscheduler/tool/powstream/66b434fa-041f-49da-9247-7a75ffd10d1a-2017Aug10T201539801126 -s 0 -c 600 -i 0.1 -t -S 200.237.196.42 [200.237.196.44]:861
pschedu+ 15521  0.0  0.0  13852   340 ?        Ss   11:08   0:00 /usr/bin/powstream -p -d /var/lib/pscheduler/tool/powstream/66b434fa-041f-49da-9247-7a75ffd10d1a-2017Aug10T201539801126 -s 0 -c 600 -i 0.1 -t -S 200.237.196.42 [200.237.196.44]:861
root     15556  0.0  0.0  12728  2220 pts/0    S+   11:09   0:00 grep pow

I install in this hosts the "perfsonar-testpoint" packages.

In CentOS when I run pscheduler monitor it shows like this:

2017-08-11T11:00:01-03:00 Running      latencybg --dest 200.237.196.45 --packet-padding 0 --source 200.237.196.43 --packet-interval +

On Debian hosts it is running as expected.

Do you have any clue about this problem?

Regards,

--

Murilo Vetter
Analista REMEP-FLN/PoP-SC
PoP-SC - Ponto de Presença da RNP em Santa Catarina
REMEP-FLN - Rede Metropolitana de Educação e Pesquisa da Região de Florianópolis
RNP - Rede Nacional de Ensino e Pesquisa
UFSC - Universidade Federal de Santa Catarina
SETIC - Superintendência de Governança Eletrônica e Tecnologia da Informação e Comunicação
Fundações de Apoio FEESC e FEPESE
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