perfSONAR User Q&A and Other Discussion

[Hyojoon Kim <>]

Hi Andy, 

If I do that, should I do this?

http://software.es.net/maddash/mesh_config.html#non-perfsonar-toolkit-nodes

-Joon

On Dec 7, 2016, at 3:58 PM, Andrew Lake <> wrote:

Hi,

In /etc/perfsonar/meshconfig-guiagent.conf set use_toolkit to 0 and then run the script again. That will cutout the config daemon which is likely blocking things things and not really necessary. 

Hope that helps!

Andy

On Dec 7, 2016 3:36 PM, "Hyojoon Kim" <> wrote:

Hello, 

Running the "/usr/lib/perfsonar/bin/generate_gui_configuration” script is spitting out an error as below. Is there a way to fix this and successfully update maddash.yaml? 

[root@perfsonar-ma-2 cron.d]# /usr/lib/perfsonar/bin/generate_gui_configuration 

2016/12/07 15:08:40 (27242) ERROR> ConfigClient.pm:97 perfSONAR_PS::NPToolkit::ConfigManager::ConfigClient::saveFile - Problem writing file /etc/maddash/maddash-server/maddash.yaml: Code execution error: Method writeFile returned error: Access denied at /usr/lib/perfsonar/bin/../lib/perfSONAR_PS/NPToolkit/ConfigManager/ConfigDaemon.pm line 151.

2016/12/07 15:08:40 (27242) ERROR> GUIAgent.pm:330 perfSONAR_PS::MeshConfig::GUIAgent::__write_file - Problem writing to /etc/maddash/maddash-server/maddash.yaml: Couldn't save /etc/maddash/maddash-server/maddash.yamlvia toolkit daemon at /usr/lib/perfsonar/bin/../lib/perfSONAR_PS/MeshConfig/GUIAgent.pm line 319.

2016/12/07 15:08:40 (27242) ERROR> GUIAgent.pm:246 perfSONAR_PS::MeshConfig::GUIAgent::__configure_guis - Problem writing maddash.yaml: Problem writing to /etc/maddash/maddash-server/maddash.yaml: Couldn't save /etc/maddash/maddash-server/maddash.yamlvia toolkit daemon at /usr/lib/perfsonar/bin/../lib/perfSONAR_PS/MeshConfig/GUIAgent.pm line 319.

[root@perfsonar-ma-2 cron.d]#

I tried to run as perfsonar or maddash user, but it seems not to work: 

[root@perfsonar-ma-2 hyojoonk]# su - maddash -c "/usr/lib/perfsonar/bin/generate_gui_configuration"

This account is currently not available.

[root@perfsonar-ma-2 hyojoonk]# su - perfsonar -c "/usr/lib/perfsonar/bin/generate_gui_configuration" 

This account is currently not available.

[root@perfsonar-ma-2 hyojoonk]# 

Further investigation revealed that the cron job for creating the “/etc/maddash/maddash.yaml” using our "mesh.json" file (/etc/cron.d/perfsonar-meshconfig-guiagent), which runs daily at 2am, was failing all along with the same error. I’m not sure since when. 

Some additional information: 

  - We have the perfsonar toolkit installed on this MaDDash node. Thus, I have following options as 1 in “/etc/perfsonar/meshconfig-guiagent.conf": "use_toolkit 1”, "restart_services 1”. And I want to keep it that way. 

  - “/etc/maddash/maddash.yaml” has the following permission property (disregard the modification date. That was done manually by me, not by any script).

-rw-r--r-- 1 maddash maddash 42290 Dec  7 15:15 maddash.yaml

  - perfsonar version is: v3.5.1.7 (RPM version: 3.5.1.7-1)

  - MaDDash version:  v1.4-1.el6 

Thanks, 

Joon