Currently scylla-jmx.service's PWD is "/", we get following error when
JVM trying to write heap dump on current directory:
Aug 17 05:52:15 localhost.localdomain scylla-jmx[3469]: Starting the JMX server
Aug 17 05:52:16 localhost.localdomain scylla-jmx[3469]: java.lang.OutOfMemoryError: Java heap space
Aug 17 05:52:16 localhost.localdomain scylla-jmx[3469]: Dumping heap to java_pid3469.hprof ...
Aug 17 05:52:16 localhost.localdomain scylla-jmx[3469]: Unable to create java_pid3469.hprof: Permission denied
To fix this, we need to specify WorkingDirectory on systemd unit.
Scylla now supports server-defined systemd slices that are used to provide
isolation between components.
This patch adds scylla-jmx to the helper slice. This will guarantee that
scylla-jmx does not use too much resources, influencing the server performance.
Signed-off-by: Glauber Costa <glauber@scylladb.com>
Since systemd unit can override parameters using drop-in unit, we don't need
mustache template for them.
Also, drop --disttype option on install.sh since it does not required anymore,
introduce --sysconfdir instead for non-redhat distributions.
Since scylla-jmx uses /usr/lib/scylla/jmx for program directory, we also
need to move them under /opt/scylladb.
Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <20190618122451.27721-1-syuu@scylladb.com>
Currently we are using *.in files for templates, applying parameters by sed
command one-by-one.
This patch will replace them by Mustache, it's simple and easy syntax template
language.
Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <20180606183113.25275-1-syuu@scylladb.com>
This commit e80a5e3cb3 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-howFixesscylladb/scylla#2935
Signed-off-by: Amos Kong <amos@scylladb.com>
Message-Id: <c983103c08a3f901037fd282a14df5bb7f85dddd.1510494507.git.amos@scylladb.com>
Using systemd to run scylla-jmx won't load params from
/etc/defaults/scylla-jmx because it expects params to be sent using the
command line.
This patch enhances the sysconfig file by adding the available options
(commented) and passes the right options to systemd `ExecStart` when
defined. That way scylla-jmx is ran with the params defined into
/etc/defaults/scylla-jmx.
Maybe not the most elegant way to do it, but 1/ it works 2/ I didn't
find a better solution to fix that problem.
Message-Id: <20170927085236.6704-1-fdevillamil@synthesio.com>
The correct dependency between the jmx and the scylla-server is:
The scylla-jmx should not run if the scylla-server is not running, it
should shutdown when the scylla-server shuts down.
Starting the scylla-jmx should not start the scylla-server, instead, if
the scylla-server is not running it should fail to start.
This patch changes the setup to do so.
Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Message-Id: <1467184319-3395-1-git-send-email-amnon@scylladb.com>
Since Ubuntu 15.10/16.04 has moved to systemd, share CentOS/Fedora's systemd unit file with Ubuntu.
Fixesscylladb/scylla#1283
Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1464083473-1701-1-git-send-email-syuu@scylladb.com>
