perfSONAR User Q&A and Other Discussion

Hello,

In my case, I needed the section "Preparing Your Environment"
in http://docs.perfsonar.net/multi_ma_backups.html

Although I succeeded to backup and restore backup data,
the upgrade PS always failed to record newer measurement data
and now I'm using clean installed one instead of that.

Best regards,
Soh Y. Suzuki

> ---------- Original Message ----------
> From: Jim Nauer CWRU
> Sent: December 18, 2018 at 7:12:38 AM GMT+9
> To: 
> 
> Subject: [perfsonar-user] CentOS 7 upgrade issue - backup is failing
> 
> 
> I'm trying to get rid of an old CentOS 6 / PS 4.0.2 setup & get it up to 
> the supported CentOS 7 / PS 4.1.x configuration...but the very first step 
> is failing, the backup of the old system.
> 
> I've googled around & found one reference to this problem back in the PS 
> 4.0-RC1 timeframe -- but no answer.
> 
> When I run "/usr/lib/perfsonar/scripts/ps-migrate-backup.sh --data 
> ~/ps-backup.tgz", I get an error on snapshotting the cassandra database:
> 
> # /usr/lib/perfsonar/scripts/ps-migrate-backup.sh --data ~/ps-backup.tgz
> Backing-up users...[SUCCESS]
> Backing-up groups...[SUCCESS]
> Backing-up passwords...[SUCCESS]
> Backing-up perfsonar configuration...[SUCCESS]
> Backing-up bwctl-server configuration...[SUCCESS]
> Backing-up owamp-server configuration...[SUCCESS]
> Backing-up NTP configuration...[SUCCESS]
> Backing-up cassandra data for esmond...Unable to snapshot cassandra database
> # 
> 
> If I run the first "nodetool" comand from the backup script, I get:
> # nodetool clearsnapshot esmond -t esmond_snapshot
> Failed to connect to '127.0.0.1:7199': Connection refused (Connection 
> refused)
> #
> 
> This is not entirely surprising, since there is no process listening on 
> port 7199 (on any interface - 127.0.0.1, 0.0.0.0, or the node's actual IP 
> address).
> 
> The backup script _does_ work with the '--data' flag omitted.
> 
> So...why is cassandra (apparently) not configured the way the toolkit 
> expects it to be, and how can I fix it?
> 
> Thanks,
>   --Jim
> 
> P.S. node is running CentOS 6 + PS 4.0.2 - but was originally installed as 
> a NetInstall back in the PS 3.0.x days, I think (updated continually via 
> yum-cron since then).  
> 
> -- 
> James A. Nauer                   | "I shall not yield one whit of  maturity,
> Engineer III, Enterprise Systems | not grace, not respectability, to  the
> University Technology, [U]Tech   | passing of time. I declare that I  shall
> Case Western Reserve University  | forever be, if not a child,  certainly
> (216) 368-MACS  (368-6227)       | childish"  --Kennet Shardik
> USPA D-25604
> 
> --
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