Remove systemd output redirection

Let systemd handle the output so the journal can be used. This also
let's the user configure if the journal stores the output of this
service to a file instead of setting the location.

Fixes #6824.

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### Release Notes
 
+With this release the systemd configuration files for InfluxDB will use the system configured default for logging and will no longer write files to `/var/log/influxdb` by default. On most systems, the logs will be directed to the systemd journal and can be accessed by `journalctl -u influxdb.service`. Consult the systemd journal documentation for configuring journald.
+
 ### Features
 
 - [#6812](https://github.com/influxdata/influxdb/pull/6812): Make httpd logger closer to Common (& combined) Log Format.
@@ -73,6 +75,7 @@
 - [#6835](https://github.com/influxdata/influxdb/pull/6835): Include sysvinit-tools as an rpm dependency.
 - [#6834](https://github.com/influxdata/influxdb/pull/6834): Add port to all graphite log output to help with debugging multiple endpoints
 - [#6850](https://github.com/influxdata/influxdb/pull/6850): Modify the max nanosecond time to be one nanosecond less.
+- [#6824](https://github.com/influxdata/influxdb/issues/6824): Remove systemd output redirection.
 
 ## v0.13.0 [2016-05-12]
 

scripts/influxdb.service

@@ -9,10 +9,8 @@ After=network-online.target
 User=influxdb
 Group=influxdb
 LimitNOFILE=65536
-Environment='STDOUT=/dev/null'
-Environment='STDERR=/var/log/influxdb/influxd.log'
 EnvironmentFile=-/etc/default/influxdb
-ExecStart=/bin/sh -c "/usr/bin/influxd -config /etc/influxdb/influxdb.conf ${INFLUXD_OPTS} >>${STDOUT} 2>>${STDERR}"
+ExecStart=/usr/bin/influxd -config /etc/influxdb/influxdb.conf ${INFLUXD_OPTS}
 KillMode=control-group
 Restart=on-failure