perfSONAR User Q&A and Other Discussion

[Michael Johnson <>]

Hi,

Comments below:

On Fri, Sep 21, 2018 at 05:12:37PM +0000, Robinson, John-Paul wrote:

> We suspect something is up with cassandra the status shows somewhat
> confusing output "active (exited)":
>
> workshop@soxws14:~/projects/mesh$ sudo systemctl status cassandra
> ● cassandra.service - SYSV: Starts and stops Cassandra
>    Loaded: loaded (/etc/rc.d/init.d/cassandra; bad; vendor preset:
> disabled)
>    Active: active (exited) since Fri 2018-09-21 16:43:46 UTC; 24min ago
>      Docs: man:systemd-sysv-generator(8)
>   Process: 5622 ExecStop=/etc/rc.d/init.d/cassandra stop (code=exited,
> status=1/FAILURE)
>   Process: 5934 ExecStart=/etc/rc.d/init.d/cassandra start
> (code=exited, status=0/SUCCESS)
>
> Sep 21 16:43:46 soxws14.sox.net systemd[1]: Starting SYSV: Starts and
> stops Cassandra...
> Sep 21 16:43:46 soxws14.sox.net su[5943]: (to cassandra) root on none
> Sep 21 16:43:46 soxws14.sox.net cassandra[5934]: Starting Cassandra: OK
> Sep 21 16:43:46 soxws14.sox.net systemd[1]: Started SYSV: Starts and
> stops Cassandra.

To clarify a couple points, "active (exited)" means the service is *enabled* (this is 
what "active" means in this context), but it is not running (exited).

I would suggest stopping cassandra using
$ sudo systemctl stop cassandra

and then checking to make sure there are no more cassandra processes running:

$ ps aux | grep cassandra

If there are any remaining processes, kill them. Then start cassandra back up.

Your statement that local tests are being archived leads me to believe that 
cassandra is running and your other hosts are unable to authenticate (in this 
case, your ip auth may not be working).

On the other hand, those Django errors usually mean Cassandra is down/unreachable from the point of view of esmond, regardless of what cassandra itself tells you. 

These two ideas do seem to conflict, but I'd try these steps to see where 
they gets you.

Thanks,
Michael

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