perfSONAR User Q&A and Other Discussion

[Dan Doyle <>]

Hi Michael,

Thanks for the feedback - seems like these would be some good quality of life improvements. I went ahead and created this issue to track it: https://github.com/perfsonar/toolkit/issues/170. Feel free to add anything else you think might be of value.

Dan Doyle
GlobalNOC Software Developer
1-812-856-3892

On Nov 16, 2016, at 11:31 AM, Michael Petry <> wrote:

I've tried using the backup and restore script in 

/usr/lib/perfsonar/scripts

with limited success.  Here are a few things:

1) If you do a backup (with data "-d") of a clean system (no tests configured) you get an error

root@oit-82-33 cassandra]#  /usr/lib/perfsonar/scripts/ps-toolkit-migrate-backup.sh -d ~petry/backuptest

Backing-up users...[SUCCESS]

Backing-up groups...[SUCCESS]

Backing-up passwords...[SUCCESS]

Backing up administrative users...[SUCCESS]

Backing-up toolkit configuration...[SUCCESS]

Backing-up bwctl-server configuration...[SUCCESS]

Backing-up owamp-server configuration...[SUCCESS]

Backing-up pScheduler configuration...[SUCCESS]

Backing-up NTP configuration...[SUCCESS]

Backing-up cassandra data...Unable to snapshot cassandra database

Digging into the bash script, it fails on doing the node tool command.

Its a corner case, but annoying.  (Once there is data, there is another problem  see 2.)

Notetool on clean system

---------------------------------

nodetool snapshot esmond -t esmond_snapshot

Requested creating snapshot for: esmond 

Exception in thread "main" java.io.IOException: Keyspace esmond does not exist

at org.apache.cassandra.service.StorageService.getValidKeyspace(StorageService.java:2298)

.

.

.

2) do the same backup on a system with data.  Do it a second time and you'll get.

the script should probably clean up after itself and do a "nodetool clearsnapshot"

[root@ps-10g-sdmz scripts]# /usr/lib/perfsonar/scripts/ps-toolkit-migrate-backup.sh -d ~petry/backuptest

Backing-up users...[SUCCESS]

Backing-up groups...[SUCCESS]

Backing-up passwords...[SUCCESS]

Backing up administrative users...[SUCCESS]

Backing-up toolkit configuration...[SUCCESS]

Backing-up bwctl-server configuration...[SUCCESS]

Backing-up owamp-server configuration...[SUCCESS]

Backing-up pScheduler configuration...[SUCCESS]

Backing-up NTP configuration...[SUCCESS]

Backing-up cassandra data...Unable to snapshot cassandra database

[root@ps-10g-sdmz scripts]# nodetool snapshot esmond -t esmond_snapshot

Requested creating snapshot for: esmond 

Exception in thread "main" java.io.IOException: Snapshot esmond_snapshot already exists.

.

.

.

Mike

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