perfSONAR User Q&A and Other Discussion

["Uhl, George D. (GSFC-423.0)[SGT INC]" <>]

I’ve been using “star” group types for tests to/from central servers which has been working out very well.  Will star group types continue to be supported in future releases of the pS mesh?  

Thanks,

George

From: Andrew Lake <>
Date: Tuesday, June 9, 2015 at 3:39 PM
To: "Manglos, Andrew P (JPL-173E)[Jet Propulsion Laboratory]" <>
Cc: "" <>, "" <>
Subject: RE: [perfsonar-user] Mesh Config Error

Hi,

I don’t know that star is supported anymore, that example needs clean-up. In mesh, every host tests to every other host. In disjoint, the a_members and b_members test to each other. You can think of mesh as a special case of disjoint where a_members and b_members are the same. 

Hope that helps,

Andy

On Tue, Jun 9, 2015 at 3:33 PM, Manglos, Andrew P (173E) <> wrote:

Hello,

 

Great. Sorry to keep pestering you with questions but I notice on esnet-mesh_config.conf you have a group type disjoint. It has a_members and b_members, how does this differ from star or mesh configurations? I was going off of the example.conf before so I only knew of those two group types.

 

From: [] On Behalf Of Andrew Lake
Sent: Tuesday, June 09, 2015 11:58 AM
To: Manglos, Andrew P (173E)
Cc: ;
Subject: RE: [perfsonar-user] Mesh Config Error

 

Hi,

 

no_agent is something that goes in the <host> definition to indicate that a host is incable of running tests. You basically use it when you want to test to a host that will not be reading your mesh file. You still need to define a <host> object for perfdrew.jpl.nasa.gov but add the property “no_agent 1”. Do a text search of no_agent in this file for lots of examples: https://github.com/esnet/esnet-perfsonar-mesh/blob/master/conf/esnet-mesh_config.conf. You then add perfdrew.jpl.nasa.gov to the list of group members. Once this is done, testhost1 and testhost2 will run tests in each direction to 

perfdrew.jpl.nasa.gov.

 

Hope that helps,

Andy

 

 

On Tue, Jun 9, 2015 at 2:29 PM, Manglos, Andrew P (173E) <> wrote:

Andrew,

 

That was it. I forgot to uncomment those tags.

 

I have another question for you. In the test I defined in my Mesh configuration, I added a no_agent hosts. When I look at results on the mesh members I do not see any results from those no_agent  hosts. Any idea as to why? My mesh configuration is attached.  

 

 

From: Andrew Lake []
Sent: Tuesday, June 09, 2015 10:26 AM
To: Manglos, Andrew P (173E)
Cc: ;
Subject: Re: [perfsonar-user] Mesh Config Error

 

Hi,

 

Did you add a <mesh> block to /opt/perfsonar_ps/mesh_config/etc/agent_configuration.conf that points at your local mesh file? That error message means that agent_configuration.conf that there are no <mesh> blocks found in that file. 

 

Thanks,

Andy

 

 

On Tue, Jun 9, 2015 at 12:46 PM, Manglos, Andrew P (173E) <> wrote:

Hello,

 

I am trying to configure a mesh configuration for some hosts. When I ran /opt/perfsonar_ps/mesh_config/bin/generate_configuration on testhost1 (Mesh Member) I get this error:

 

2015/06/09 09:04:40 (9325) WARN> Agent.pm:211 perfSONAR_PS::MeshConfig::Agent::__configure_host - No meshes defined in the configuration

 

 

I put my .json file into /var/www/html on testhost0 and want to have testhost1 pull the Mesh Config down. Anyone have an idea of what I’m doing wrong?

 

<TestConf.txt>