Hi There -
I recently upgraded from cassandra 3.5 to 3.9 (DDC), and I noticed that the
"new" jvm metrics are reporting with an extra '.' character in them. Here is a
snippet of what I see from one of my nodes:
ubuntu@ip-10-0-2-163:~$ sudo tcpdump -i eth0 -v dst port 2003 -A | grep 'jvm'
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
.Je..l>.pi.cassandra.us-east-1.cassy-node1.jvm.buffers..direct.capacity
762371494 1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.buffers..direct.count 3054 1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.buffers..direct.used 762371496 1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.buffers..mapped.capacity 515226631134
1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.buffers..mapped.count 45572 1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.buffers..mapped.used 515319762610
1482960946
pi.cassandra.us-east-1.cassy-node1.jvm.fd.usage 0.00 1482960946
My metrics.yaml looks like this:
graphite:
-
period: 60
timeunit: 'SECONDS'
prefix: 'pi.cassandra.us-east-1.cassy-node1'
hosts:
- host: '#RELAY_HOST#'
port: 2003
predicate:
color: "white"
useQualifiedName: true
patterns:
- "^org.+"
- "^jvm.+"
- "^java.lang.+"
All the org.* metrics come through fine, and the jvm.fd.usage metric strangely
comes through fine, too. The rest of the jvm.* metrics have this extra '.'
character that causes them to not show up in graphite.
Am I missing something silly here? Appreciate any help or suggestions.
- Mike
