Control: retitle -1 elasticsearch: Please provide a systemd service file > However the fact remains, systemd is confusingly reporting ES as > being started when it is not. IMHO, that's an issue.
Not an issue here. Without START_DAEMON=true, systemd correctly reports the unit as run successfully and detects the daemon to have exited: root@vs84:~> systemctl status elasticsearch.service ● elasticsearch.service - LSB: Starts elasticsearch Loaded: loaded (/etc/init.d/elasticsearch) Active: active (exited) since Tue 2015-10-06 10:17:28 CEST; 1 weeks 1 days ago root@vs84:~> Enabling elasticsearch with START_DAEMON=true and systemd will also detect the process itself as running: root@vs84:~> systemctl status elasticsearch.service ● elasticsearch.service - LSB: Starts elasticsearch Loaded: loaded (/etc/init.d/elasticsearch) Active: active (running) since Wed 2015-10-14 10:51:31 CEST; 3s ago Process: 17109 ExecStop=/etc/init.d/elasticsearch stop (code=exited, status=0/SUCCESS) Process: 17149 ExecStart=/etc/init.d/elasticsearch start (code=exited, status=0/SUCCESS) CGroup: /system.slice/elasticsearch.service └─17203 /usr/lib/jvm/java-7-openjdk-amd64/bin/java -Xms256m -Xmx1g -Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSIn... Oct 14 10:51:31 vs84 elasticsearch: Starting Elasticsearch Server:. root@vs84:~> systemd is behaving absolutely correctly and as expected. Without any systemd support from the elasticsearch service, systemd has to resort to using the LSB compatibility layer and has to evaluate the status codes of the SysV scripts provided by elasticsearch. If these scripts return with SUCCESS on "start", systemd has to assume the service was run successfully albeit it detects that the process associated with it has exited (which is what you can see above). There are cases where a unit is run and exits shortly after (so-called "oneshot" unit in systemd), so it's safe to assume for systemd to assume that the unit was run successfully as long as the exit code was zero. In order to properly fix this problem, the elasticsearch maintainers should add systemd support to their package by providing a service file. This is a good idea anyway since systemd is the default init system since Debian Jessie and SystemV scripts is something we would like to get rid of in Debian. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaub...@debian.org `. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 __ This is the maintainer address of Debian's Java team <http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-java-maintainers>. Please use debian-j...@lists.debian.org for discussions and questions.