Logstash.service: Unit not found (ELK)

[weyderfs]

Hi everyone,
I'm having trouble starting Logstash in my Centos 7. I found several articles on Web, but not found a solution.

My configs:

Oracle Java 8

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$ echo $JAVA_HOME
$ /usr/bin/java

$java -version
java version "1.8.0_172"
Java(TM) SE Runtime Environment (build 1.8.0_172-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.172-b11, mixed mode)

I installed the Logstash by yum following this article: https://www.digitalocean.com/community/ ... n-centos-7

But when run:

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$ systemctl start logstash
Failed to start logstash.service: Unit not found

I try start manually Logstash:

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$/usr/share/logstash/bin/logstash
WARNING: Could not find logstash.yml which is typically located in $LS_HOME/config or /etc/logstash. You can specify the path using --path.settings. Continuing using the defaults
Could not find log4j2 configuration at path /usr/share/logstash/config/log4j2.properties. Using default config which logs errors to the console
ERROR: Failed to read pipelines yaml file. Location: /usr/share/logstash/config/pipelines.yml
usage:
bin/logstash -f CONFIG_PATH [-t] [-r] [] [-w COUNT] [-l LOG]
bin/logstash --modules MODULE_NAME [-M "MODULE_NAME.var.PLUGIN_TYPE.PLUGIN_NAME.VARIABLE_NAME=VALUE"] [-t] [-w COUNT] [-l LOG]
bin/logstash -e CONFIG_STR [-t] [--log.level fatal|error|warn|info|debug|trace] [-w COUNT] [-l LOG]
bin/logstash -i SHELL [--log.level fatal|error|warn|info|debug|trace]
bin/logstash -V [--log.level fatal|error|warn|info|debug|trace]
bin/logstash --help
[ERROR] 2018-07-03 16:43:51.955 [LogStash::Runner] Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit

Someone can help?

[TrevorH]

What is the output from rpm -ql logstash | grep systemd (change the package name if it's not called logstash).

[weyderfs]

Following output

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[root@scutum ~]# rpm -ql logstash | grep systemd
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/lib/pleaserun/platform/systemd-user.rb
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/lib/pleaserun/platform/systemd.rb
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/spec/pleaserun/platform/systemd_spec.rb
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/templates/systemd-user/default/prestart.sh
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/templates/systemd-user/default/program.service
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/templates/systemd/default/default
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/templates/systemd/default/prestart.sh
/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/pleaserun-0.0.30/templates/systemd/default/program.service

[TrevorH]

So they are not shipping an file which installs under /usr/lib/systemd/system where package provided unit files should live. Nor are they providing any .service file under /etc/systemd/system either so that explains why it doesn't work. It is possible that the files ending in .service that show up in your grep are designed to be copied manually into place but it seems like a silly way to do it to me.

It's a packaging bug. They don't provide the file so there isn't one. You'll either need to raise it with logstash or write one yourself.

[weyderfs]

So they are not shipping an file which installs under /usr/lib/systemd/system where package provided unit files should live. Nor are they providing any .service file under /etc/systemd/system either so that explains why it doesn't work. It is possible that the files ending in .service that show up in your grep are designed to be copied manually into place but it seems like a silly way to do it to me.

It's a packaging bug. They don't provide the file so there isn't one. You'll either need to raise it with logstash or write one yourself.

Thank you by awnser, I got around the problem following this steps:

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$ cd /usr/share/logstash/bin
$ ./system-install

This script "system-install" identifies what my service manager (init, SysV, Upstart, Systemd) and create the links with it. After run I could manager the service with systemctl.

Thanks by help.
Regards