This commit e80a5e3cb319fc80c669d6d75f5abeb0d781758b introduced an issue, it wrongly passes an empty string to scylla-jmx cmdline, which causes scylla-jmx script stuck. The cmdline real executes is: # scylla-jmx -l /usr/lib/scylla/jmx "" Wrapped quotation marks of env variable can't be parsed away if we use ${SCYLLA_PARAMS} in ExecStart cmdline, but $SCYLLA_PARAMS works. Another problem is the variable can't be re-used insider env file, reference: [1]. Let's split the parameters to multiple env variables, and combine them in ExecStart cmdline. [1] https://unix.stackexchange.com/questions/358998/systemd-environmentfile-re-using-variables-how Fixes scylladb/scylla#2935 Signed-off-by: Amos Kong <amos@scylladb.com> Message-Id: <c983103c08a3f901037fd282a14df5bb7f85dddd.1510494507.git.amos@scylladb.com>
Scylla JMX Server
Scylla JMX server implements the Apache Cassandra JMX interface for compatibility with tooling such as nodetool
. The JMX server uses Scylla's REST API to communicate with a Scylla server.
Compiling
To compile JMX server, run:
$ mvn package
Running
To start the JMX server, run:
$ ./scripts/scylla-jmx
To get help on supported options:
$ ./scripts/scylla-jmx --help
Description
Languages
Java
92.4%
Python
4.5%
Shell
3.1%