perfSONAR User Q&A and Other Discussion

[Jean-Michel Barbet <>]

On 09/18/2018 07:54 PM, Szymon Trocha wrote:

> Is there anything suspicious in esmond log?

Hi Szymon, Thanks...

The /var/log/esmond/esmond.log is apparently not used anymore but the
/var/log/esmond/django.log has recent additions :

[root@nanperfs01 ~]# tail  /var/log/esmond/django.log
    self.raise_uncaught_exception(exc)
  File 
"/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/views.py", 
line 486, in dispatch
    response = handler(request, *args, **kwargs)
  File "/usr/lib/esmond/esmond/api/perfsonar/api_v2.py", line 887, in 
update
    check_connection()
  File "/usr/lib/esmond/esmond/api/perfsonar/api_v2.py", line 78, in 
check_connection
    db = CASSANDRA_DB(get_config(get_config_path()))
  File "/usr/lib/esmond/esmond/cassandra.py", line 134, in __init__
    "at %s - %s" % (config.cassandra_servers[0], e))
ConnectionException: "System Manager can't connect to Cassandra at 
localhost:9160 - Could not connect to localhost:9160"

I tried to restart Cassandra and it looks OK :


[root@nanperfs01 ~]# systemctl status cassandra.service
● cassandra.service - SYSV: Starts and stops Cassandra
   Loaded: loaded (/etc/rc.d/init.d/cassandra; bad; vendor preset: 
disabled)
   Active: active (exited) since Wed 2018-09-19 08:35:20 CEST; 44s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 31843 ExecStop=/etc/rc.d/init.d/cassandra stop (code=exited, 
status=1/FAILURE)
  Process: 31943 ExecStart=/etc/rc.d/init.d/cassandra start 
(code=exited, status=0/SUCCESS)

Sep 19 08:35:20 nanperfs01.in2p3.fr cassandra[31843]: Sep 19 08:35:14 
nanperfs01.in2p3.fr su[31853]: (to cassandra) root on none
Sep 19 08:35:20 nanperfs01.in2p3.fr cassandra[31843]: Sep 19 08:35:15 
nanperfs01.in2p3.fr cassandra[31843]: Shutdown Cassandra: bash: line 0: 
kill: (2763) - Operation not permitted
Sep 19 08:35:20 nanperfs01.in2p3.fr systemd[1]: cassandra.service: 
control process exited, code=exited status=1
Sep 19 08:35:20 nanperfs01.in2p3.fr systemd[1]: Unit cassandra.service 
entered failed state.
Sep 19 08:35:20 nanperfs01.in2p3.fr systemd[1]: cassandra.service failed.
Sep 19 08:35:20 nanperfs01.in2p3.fr systemd[1]: Starting SYSV: Starts 
and stops Cassandra...
Sep 19 08:35:20 nanperfs01.in2p3.fr su[31952]: (to cassandra) root on none
Sep 19 08:35:20 nanperfs01.in2p3.fr cassandra[31943]: Starting Cassandra: OK
Sep 19 08:35:20 nanperfs01.in2p3.fr systemd[1]: Started SYSV: Starts and 
stops Cassandra.

JM


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Jean-michel BARBET                    | Tel: +33 (0)2 51 85 84 86
Laboratoire SUBATECH Nantes France    | Fax: +33 (0)2 51 85 84 79
CNRS-IN2P3/IMT-Atlantique/Univ.Nantes | E-Mail: 

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