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HAProxy plugin #71

Merged
merged 1 commit into from Aug 5, 2015
Merged

HAProxy plugin #71

merged 1 commit into from Aug 5, 2015
+463 −0

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v9n
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@v9n v9n commented Jul 17, 2015

Request HAProxy stats in CSV format and parse only below value:

QCUR:
SCUR:
SMAX:
BIN:
BOUT:
RATE:
RATE_MAX:
STOT:
HRSP_1xx:
HRSP_2xx:
HRSP_3xx:
HRSP_4xx:
EREQ:
ERESP:
ECON:
REQ_RATE:
REQ_RATE_MAX:
REQ_TOT

Metric name is column name in CSV file as above to avoid confusion and keep it in-sync with HAProxy column. Proxy name and backend, service are passed as tag. Example(when run in test mode)

> [host="lb.haproxy.com" proxy="be_forbidden" sv="BACKEND"] haproxy_rate value=0
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_scur value=1
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_smax value=1
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_stot value=2
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_bin value=58504
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_bot value=4314106
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_rate value=1
> [host="lb.haproxy.com" proxy="stats" sv="FRONTEND"] haproxy_req_rate value=1
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_qcur value=0
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_scur value=0
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_smax value=0
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_stot value=0
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_bin value=58504
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_bot value=4314106
> [host="lb.haproxy.com" proxy="stats" sv="BACKEND"] haproxy_rate value=0

Sample configuration:

# Read metrics from one or many haproxy servers, either using socket or static http page
[haproxy]
servers = ["http://user:password@lb.haproxy.com", "http://noauthentication_haproxy.com"]

@evanphx
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evanphx commented Jul 21, 2015

One quick change I'd like you to make. Because the fields are NOT defined by Go, but rather in the CSV layout, please don't use iota. Instead use the constant numbers for the fields.

@v9n
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v9n commented Jul 23, 2015

@evanphx Thanks for feedback. I was lazy so I used iota and make sure to map them one by one sequentially. But that's really bad after reading your comment now.

I rebased with master and solve conflict.

@sparrc
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sparrc commented Aug 5, 2015

@kureikain looks good to me, thanks much!

sparrc added a commit that referenced this pull request Aug 5, 2015
@sparrc
Merge pull request #71 from kureikain/haproxy_plugin
06a84de 
HAProxy plugin
@sparrc sparrc merged commit 06a84de into influxdata:master Aug 5, 2015
srfraser pushed a commit to srfraser/telegraf that referenced this pull request Aug 10, 2015
@sparrc
Merge pull request influxdata#71 from kureikain/haproxy_plugin
ce8d705 
HAProxy plugin
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@v9n @evanphx @sparrc