perfSONAR User Q&A and Other Discussion

[Oleg Moiseichuk <>]

Hello.

Would you please help me with advice.

I created several perfSONAR nodes on the base of Gigabyte BRIX 3160.
Firstly I performed installation (from perfSONAR full ISO version 4.0.2) on 
one node, then I cloned this node with Clonezilla and set proper IP addresses 
on all 4 nodes.
N.B. I also changed interface name from enp3s0 to eth0, if this is relevant.

I placed all the nodes on the desired spots and then I found out that I 
cannot change any settings. I tried changing location, system name, NTP 
server settings. When I alter some setting using web admin and press "Save" 
button, it reverts to old settings.

I found several errors in the log of webadmin. They look as the possible 
cause of my problem:

/var/log/perfsonar/web_admin/web_admin.log:2018/05/16 12:17:53 (9096) ERROR> 
ConfigClient.pm:93 
perfSONAR_PS::NPToolkit::ConfigManager::ConfigClient::saveFile - Problem 
writing file /etc/ntp.conf: RPC::XML::Client::simple_request: 
RPC::XML::Client::send_request: HTTP server error: Can't connect to 
127.0.0.1:9000 (Connection refused)

/var/log/perfsonar/web_admin/web_admin.log:2018/05/16 13:06:39 (12934) ERROR> 
ConfigClient.pm:93 
perfSONAR_PS::NPToolkit::ConfigManager::ConfigClient::saveFile - Problem 
writing file /etc/perfsonar/lsregistrationdaemon.conf: 
RPC::XML::Client::simple_request: RPC::XML::Client::send_request: HTTP server 
error: Can't connect to 127.0.0.1:9000 (Connection refused)

I noticed also one thing:
------------------------
# netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State     
  PID/Program name    
tcp        0      0 127.0.0.1:37469         0.0.0.0:*               LISTEN    
  10552/java          
tcp        0      0 127.0.0.1:7199          0.0.0.0:*               LISTEN    
  10552/java          
tcp        0      0 0.0.0.0:9922            0.0.0.0:*               LISTEN    
  1132/sshd           
tcp        0      0 127.0.0.1:9160          0.0.0.0:*               LISTEN    
  10552/java          
tcp        0      0 127.0.0.1:11211         0.0.0.0:*               LISTEN    
  1127/memcached      
tcp        0      0 127.0.0.1:9042          0.0.0.0:*               LISTEN    
  10552/java          
tcp        0      0 127.0.0.1:7000          0.0.0.0:*               LISTEN    
  10552/java          
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN    
  1186/postgres       
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN    
  1828/master         
tcp6       0      0 :::861                  :::*                    LISTEN    
  1138/owampd         
tcp6       0      0 :::9922                 :::*                    LISTEN    
  1132/sshd           
tcp6       0      0 ::1:9000                :::*                    LISTEN    
  1961/toolkit_config 
tcp6       0      0 ::1:11211               :::*                    LISTEN    
  1127/memcached      
tcp6       0      0 :::80                   :::*                    LISTEN    
  1133/httpd          
tcp6       0      0 :::4823                 :::*                    LISTEN    
  1226/bwctld         
tcp6       0      0 ::1:5432                :::*                    LISTEN    
  1186/postgres       
tcp6       0      0 ::1:25                  :::*                    LISTEN    
  1828/master         
tcp6       0      0 :::443                  :::*                    LISTEN    
  1133/httpd          
udp        0      0 127.0.0.1:11211         0.0.0.0:*                         
  1127/memcached      
udp        0      0 80.94.170.182:123       0.0.0.0:*                         
  747/ntpd            
udp        0      0 127.0.0.1:123           0.0.0.0:*                         
  747/ntpd            
udp        0      0 0.0.0.0:123             0.0.0.0:*                         
  747/ntpd            
udp6       0      0 ::1:11211               :::*                              
  1127/memcached      
udp6       0      0 fe80::e2d5:5eff:fe1:123 :::*                              
  747/ntpd            
udp6       0      0 ::1:123                 :::*                              
  747/ntpd            
udp6       0      0 :::123                  :::*                              
  747/ntpd        
------------------------
toolkit_config_daemon is running, but it listens only on ::1:9000, no sign of 
opened port for IPv4.
I've got one more perfSONAR host and 'netstat -tulpn' shows 127.0.0.1:9000 in 
its output.

How this issue can be fixed?

-- 
Best regards,
Oleg Moiseichuk,
Engineer of the Department of Network Communications,
UIIP of the National Academy of Sciences of Belarus
Phone: +375 17 294-92-29

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