8a73d6a840
CacheMetrics is a general counter that is used for all possible caches. For caches that we do not support, there is no need to go and fetch their values. When moving to the APITimer each such request will take longer (the value will not be available as it use it) now it will be possible to supply a null as a url which would cause to the metrics to return 0 for all counters. Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Urchin JMX Interface
This is the JMX interface for Scylla
Compile
To compile do:
mvn install
Run
The maven will create an uber-jar with all dependency under the target directory. You should run it with the remote jmx enable so the nodetool will be able to connect to it.
java -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7199 -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -jar target/scylla-jmx-1.0.jar
Setting IP and Port
By default the the JMX would connect to a node on the localhost on port 10000.
The jmx API uses the system properties to set the IP address and Port. To change the ip address use the apiaddress property (e.g. -Dapiaddress=1.1.1.1) To change the port use the apiport (e.g. -Dapiport=10001)