Collectd plugin for obtaining request metrics from Apache's access log. Based on the apache-log-parser library and the collectd-python.
- Install the apache-log-parser package
- Clone this repo:
git clone https://github.com/mirekys/collectd-apachelog.git - Place apachelog.py to your collectd-python ModulePath
- Update your collectd.conf
<Plugin python>
ModulePath "/../../collectd-plugins/" # Path, where will the apachelog.py reside
LogTraces false
Interactive false
Import "apachelog"
<Module apachelog>
# Plugin instance name
Name "serverX_requests"
# Which time interval should be read from the Access_log at each plugin run
Interval 1
AccessLog "/etc/httpd/logs/ssl_access.log"
# Whichever format does your Apache server use for the Access_log
AccessLogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %k %I %O %D"
</Module>
</Plugin>
Output of the plugin is dependent mainly on the Access_log_format that you specify. It is used by the apache-log-parser which then returns specific keys & values depending on format.
Values are then aggregated by HTTP method and further into bytes, count and response time field types. The value paths provided by the plugin are built dynamically as it reads the different requests from the Access_log (there is no predetermined set of value paths).
Output example:
serverX_requests/count-GET=4
serverX_requests/count-GET-num_keepalives=3
serverX_requests/bytes-GET-bytes_tx=16017
serverX_requests/bytes-GET-bytes_rx=3679
serverX_requests/bytes-GET-response_bytes_clf=12614
serverX_requests/response_time-GET-time_us=457318
serverX_requests/count-GET-status_2xx=4
serverX_requests/count-GET-status_3xx=0
You can run this plugin in standalone debug mode, where it outputs to console what would be otherwise sent to the collectd daemon:
./apachelog.py debug
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