[inputs.graylog] Error in plugin: has status code 400 (Bad Request)

[lee-costa]

Relevant telegraf.conf:

[[inputs.graylog]]
servers = [
"http://192.168.2.11:9000/api/system/metrics/multiple",
]
metrics = [
"org.graylog2.journal.size",
"org.graylog2.journal.size-limit",
"org.graylog2.throughput.input.1-sec-rate",
"org.graylog2.throughput.output.1-sec-rate"
]
username = "token"
password = "token"
insecure_skip_verify = true

System info:

[Include Telegraf version, operating system name, and other relevant details]
Telegraf 1.9.0
Ubuntu 16.04

Steps to reproduce:

1. ...Upgrade Graylog to 2.5
2. ...Restart telegraf

Expected behavior:

No errors.

Actual behavior:

[inputs.graylog]: Error in plugin: Response from url "http://192.168.2.11:9000/api/system/metrics/multiple" has status code 400 (Bad Request), expected 200 (OK)

Additional info:

[Include gist of relevant config, logs, etc.]

[kpointer]

Graylog2/graylog2-server#5358

"All API requests now need to set the X-Requested-By HTTP header"

[glinton]

Closing as duplicate of #5010

This will be resolved in 1.9.1