Contents

# Monitoring Interceptor

Add the monitoring interceptor to your basic set of LHC interceptors.

```ruby
  LHC.config.interceptors = [LHC::Monitoring]
```

You also have to configure statsd in order to have the monitoring interceptor report.

```ruby
  LHC::Monitoring.statsd = <your-instance-of-statsd>
```

The monitoring interceptor reports all the HTTP communication done with LHS.
It reports the trial always.

In case of a successful response it reports the response code with a count and the response time with a gauge value.

```ruby
  LHC.get('http://local.ch')

  "lhc.<app_name>.<env>.<host>.<http_method>.count", 1
  "lhc.<app_name>.<env>.<host>.<http_method>.200", 1
  "lhc.<app_name>.<env>.<host>.<http_method>.time", 43
```

In case your workers/processes are getting killed due limited time constraints, 
you are able to detect deltas with relying on "before_request", and "after_request" counts:

```ruby
  "lhc.<app_name>.<env>.<host>.<http_method>.before_request", 1
  "lhc.<app_name>.<env>.<host>.<http_method>.after_request", 1
```

Timeouts are also reported:

```ruby
  "lhc.<app_name>.<env>.<host>.<http_method>.timeout", 1
```

All the dots in the host are getting replaced with underscore (_), because dot is the default separator in graphite.

It is also possible to set the key for Monitoring Interceptor on per request basis:

```ruby
  LHC.get('http://local.ch', monitoring_key: 'local_website')

  "local_website.count", 1
  "local_website.200", 1
  "local_website.time", 43
```

If you use this approach you need to add all namespaces (app, environment etc.) to the key on your own.

Version data entries

45 entries across 45 versions & 1 rubygems

Version	Path
lhc-9.1.2	docs/interceptors/monitoring.md
lhc-9.1.2.pre	docs/interceptors/monitoring.md
lhc-9.1.1	docs/interceptors/monitoring.md
lhc-8.1.1	docs/interceptors/monitoring.md
lhc-9.1.0	docs/interceptors/monitoring.md
lhc-9.0.0	docs/interceptors/monitoring.md
lhc-8.1.0	docs/interceptors/monitoring.md
lhc-8.0.0	docs/interceptors/monitoring.md
lhc-7.3.3	docs/interceptors/monitoring.md
lhc-7.3.2	docs/interceptors/monitoring.md
lhc-7.3.1	docs/interceptors/monitoring.md
lhc-7.3.0	docs/interceptors/monitoring.md
lhc-7.2.0	docs/interceptors/monitoring.md
lhc-7.1.0	docs/interceptors/monitoring.md
lhc-7.0.1	docs/interceptors/monitoring.md
lhc-7.0.0	docs/interceptors/monitoring.md
lhc-7.0.0.beta1	docs/interceptors/monitoring.md
lhc-6.7.2	docs/interceptors/monitoring.md
lhc-6.7.1	docs/interceptors/monitoring.md
lhc-6.7.0	docs/interceptors/monitoring.md