perfSONAR User Q&A and Other Discussion

[Michael Johnson <>]

Hi Trond,

Cassandra is the database backend that Esmond uses. Do you see anything 
interesting in /var/log/cassandra/cassandra.log or 
/var/log/cassandra/system.log ? These might be able to shed some light on why 
Cassandra is failing to start.

Thanks,
Michael

On Wed, Oct 04, 2017 at 07:24:23PM +0200, Trond Endrestøl wrote:
> On Wed, 4 Oct 2017 13:18-0400, Michael Johnson wrote:
>
> > Hi Trond,
> >
> > Can you try 'systemctl status cassandra' and see what it says?
>
> ● cassandra.service - SYSV: Starts and stops Cassandra
>  Loaded: loaded (/etc/rc.d/init.d/cassandra; bad; vendor preset: disabled)
>  Active: active (exited) since Wed 2017-10-04 19:08:40 CEST; 11min ago
>    Docs: man:systemd-sysv-generator(8)
>
> Oct 04 19:08:40 perfsonar.FQDN systemd[1]: Unit cassandra.service entered 
> failed state.
> Oct 04 19:08:40 perfsonar.FQDN systemd[1]: cassandra.service failed.
> Oct 04 19:08:40 perfsonar.FQDN systemd[1]: Starting SYSV: Starts and stops 
> Cassandra...
> Oct 04 19:08:40 perfsonar.FQDN su[2314]: (to cassandra) root on none
> Oct 04 19:08:40 perfsonar.FQDN cassandra[2305]: Starting Cassandra: OK
> Oct 04 19:08:40 perfsonar.FQDN systemd[1]: Started SYSV: Starts and stops 
> Cassandra.
>
> > Then 'systemctl start cassandra' if it's not running, or 'systemctl restart
> > cassandra' if it is.
>
> Neither commands produce any output:
>
> [root@perfsonar ~]# systemctl start cassandra
> [root@perfsonar ~]# systemctl restart cassandra
>
> sysctl status cassandra now says:
>
> ● cassandra.service - SYSV: Starts and stops Cassandra
>  Loaded: loaded (/etc/rc.d/init.d/cassandra; bad; vendor preset: 
> disabled)
>  Active: active (exited) since Wed 2017-10-04 19:21:41 CEST; 35s ago
>    Docs: man:systemd-sysv-generator(8)
> Process: 3990 ExecStop=/etc/rc.d/init.d/cassandra stop (code=exited, 
> status=1/FAILURE)
> Process: 4036 ExecStart=/etc/rc.d/init.d/cassandra start 
> (code=exited, status=0/SUCCESS)
>
> Oct 04 19:21:41 perfsonar.FQDN systemd[1]: cassandra.service: control process 
> exited, code=exited status=1
> Oct 04 19:21:41 perfsonar.FQDN systemd[1]: Unit cassandra.service entered 
> failed state.
> Oct 04 19:21:41 perfsonar.FQDN systemd[1]: cassandra.service failed.
> Oct 04 19:21:41 perfsonar.FQDN systemd[1]: Starting SYSV: Starts and stops 
> Cassandra...
> Oct 04 19:21:41 perfsonar.FQDN su[4045]: (to cassandra) root on none
> Oct 04 19:21:41 perfsonar.FQDN systemd[1]: Started SYSV: Starts and stops 
> Cassandra.
> Oct 04 19:21:41 perfsonar.FQDN cassandra[4036]: Starting Cassandra: OK
>
> --
> Trond.


--
Michael Johnson
GlobalNOC Software Engineering
Indiana University

812-856-2771

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