[Bug 226800] textproc/elasticsearch6: Elasticsearch cannot delete its PID file

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226800

            Bug ID: 226800
           Summary: textproc/elasticsearch6: Elasticsearch cannot delete
                    its PID file
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: feld at FreeBSD.org
          Reporter: ftigeot at wolfpond.org
          Assignee: feld at FreeBSD.org
             Flags: maintainer-feedback?(feld at FreeBSD.org)

textproc/elasticsearch6 sets up Elasticsearch to use a PID file located in
/var/run , /var/run/elasticsearch.pid

On my system, /var/run belongs to root:wheel and has permissions 755.

When Elasticsearch is started or stopped manually by running
/usr/local/etc/rc.d/elasticsearch start or stop, there is no obvious issue.

Unfortunately, in case of a system shutdown or reboot, Elasticsearch fails to
start again automatically:

[2018-03-20T07:37:33,968][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler]
[cube] uncaught exception in thread [Thread-2]
org.elasticsearch.ElasticsearchException: Failed to delete pid file
/var/run/elasticsearch.pid
        at org.elasticsearch.common.PidFile$1.run(PidFile.java:115)
~[elasticsearch-6.2.2.jar:6.2.2]
Caused by: java.nio.file.AccessDeniedException: /var/run/elasticsearch.pid

This seems to be because Elasticsearch itself tries to remove or rewrite the
PID file, and Elasticsearch is run as the elasticsearch user, not as root. It
doesn't have permission to delete or create files in /var/run.

I have access to a Debian system and it uses a /run/elasticsearch/ directory
belonging to elasticsearch:elasticsearch with permissions 755 to prevent the
kind of issues I am experiencing.

Would it be possible to modify this port to use a /var/run/elasticsearch/
directory ?

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