Cannot configure multiple graphite listeners via env variables?

[kklocek]

Bug report

System info: InfluxDB, version v1.0.2, branch master, commit ff30704. Mac OS X Sierra . Tested locally, also tested on dockerized version of 1.1

Steps to reproduce:

1. I need to configure two graphite listeners, one on UDP (port 2004) and other on TCP (port 2003)
2. I set some env variables (not all because lots of them are defaults):

INFLUXDB_GRAPHITE_1_ENABLED=true
INFLUXDB_GRAPHITE_1_PROTOCOL=udp
INFLUXDB_GRAPHITE_1_BIND_ADDRESS=:2004
INFLUXDB_GRAPHITE_1_DATABASE=test
INFLUXDB_GRAPHITE_0_PROTOCOL=tcp
INFLUXDB_GRAPHITE_ENABLED=true

3. I run influxd and in logs I can see

...
[httpd] 2016/12/15 11:34:36 Listening on HTTP: [::]:8086
[retention] 2016/12/15 11:34:36 Starting retention policy enforcement service with check interval of 30m0s
[monitor] 2016/12/15 11:34:36 Storing statistics in database '_internal' retention policy 'monitor', at interval 10s
[graphite] 2016/12/15 11:34:36 Starting graphite service, batch size 5000, batch timeout 1s
[monitor] 2016/12/15 11:34:36 'graphite:tcp::2003' registered for diagnostics monitoring
[graphite] 2016/12/15 11:34:36 Listening on TCP: [::]:2003

4. If I do it via config file it works

Expected behavior: run two graphite listeners on two ports, which I can set via env variables

Actual behavior: if I set configuration via env variable only one graphite listeners is started (from configuration INFLUXDB_GRAPHITE_0)

Additional info: vars, stats, diagnostics

I looked through the docs but I think there is an error there also - on config I see:

Note: To set or override settings in a config section that allows multiple configurations (any section with [[double_brackets]] in the header supports multiple configurations), the desired configuration must be specified by ordinal number. For example, for the first set of [[graphite]] environment variables, prefix the configuration setting name in the environment variable with the relevant position number (in this case: 0):

...
INFLUXDB_GRAPHITE_0_PROTOCOL
...

For the Nth Graphite configuration in the configuration file, the relevant environment variables would be of the form INFLUXDB_GRAPHITE_(N-1)_BATCH_PENDING. For each section of the configuration file the numbering restarts at zero.

but in a graphite section i see:

protocol = “tcp”

Set to tcp or udp.

Environment variable: INFLUXDB_GRAPHITE_PROTOCOL

[jwilder]

This might be fixed when #7323 is merged.

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