I'm running Cassandra Cassandra 2.0.11.83 (via DSE 4.6.0), and Graphite 0.9.10.
I know a bit about Cassandra, but not much about Graphite.
Our Graphite server exposes system metrics, and also those from the example
python scripts, successfully.
I can see Cassandra metrics hitting the Graphite server, but in the console
log, errors suggest they are attempting to load in to the root file system
exceptions.IOError: [Errno 2] No such file or directory:
'/org/apache/cassandra/metrics/ColumnFamily/system/sstable_activity/WriteTotalLatency/count.wsp'
Whereas, I think, it should be going to something like this
/var/lib/carbon/whisper/carbon/agents/org/apache/cassandra/metrics/ColumnFamily/system/sstable_activity/WriteTotalLatency/count.wsp'
I'm losing the prefix directory path somewhere, but don't know where to
configure it.
On the Cassandra side all I have added is a call to metricsGraphite.yaml, which
contains
graphite:
-
period: 60
timeunit: 'SECONDS'
hosts:
- host: '10.11.12.13'
port: 2003
predicate:
color: "white"
useQualifiedName: true
patterns:
- "^org.apache.cassandra.metrics.+"
On the Graphite side I simply have the following in Carbons'
storage-schemas.conf file
[cassandra]
pattern=cassandra
retentions = 60:90d
Any hints to what is going wrong?
Many Thanks
Nigel
___________________________________________________________
This e-mail may contain confidential and/or privileged information. If you are
not the intended recipient (or have received this e-mail in error) please
notify the sender immediately and delete this e-mail. Any unauthorised copying,
disclosure or distribution of the material in this e-mail is prohibited.
Please refer to http://www.bnpparibas.co.uk/en/email-disclaimer/ for additional
disclosures.
