Amos Kong 01ba660fe7 sysconfig: correct the assignment in env file of systemd
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>
2017-11-12 15:57:43 +02:00
2015-09-22 13:33:24 +03:00
2017-03-03 12:35:00 +02:00

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
Scylla JMX proxy
Readme 1.3 MiB
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