share share share 

Apache Web Server Monitoring Integration

Sematext offers a simple, easy to install, Apache monitoring agent with minimal CPU and memory overhead.

Install Apache Monitoring Agent¶

Setting up the monitoring agent takes less than 5 minutes:

Activate Apache mod_status module with sudo a2enmod status and configure it in status.conf file, e.g. in /etc/apache2/mods-enabled/status.conf:
```
ExtendedStatus On
<Location /server-status>
  SetHandler server-status
</Location>
```
Create an Apache App in the Integrations / Overview (or Sematext Cloud Europe). This will let you install the agent and control access to your monitoring and logs data. The short What is an App in Sematext Cloud video has more details.
Name your Apache monitoring App and, if you want to collect Apache logs as well, create a Logs App along the way.
Install the Sematext Agent according to the https://apps.sematext.com/ui/howto/Apache/overview displayed in the UI.

Metric Name	Key	Agg	Type	Description
async closing	apache.connections.async.closing	Avg	Double
async writing	apache.connections.async.writing	Avg	Double
busy	apache.workers.busy	Avg	Double
total	apache.connections.total	Avg	Double
requests count	apache.requests.count	Sum	Long
idle	apache.workers.idle	Avg	Double
async keep alive	apache.connections.async.keepAlive	Avg	Double
keepalive	apache.workers.keepalive	Avg	Double	keepalive: Number of workers currently sending keepalive messages
open	apache.workers.open	Avg	Double	open: Number of workers currently not busy with any process
sending	apache.workers.sending	Avg	Double	sending: Number of workers currently sending a reply
finishing	apache.workers.finishing	Avg	Double	finishing: Number of workers currently gracefully finishing connections
reading	apache.workers.reading	Avg	Double	reading: Number of workers currently reading incoming requests
closing	apache.workers.closing	Avg	Double	closing: Number of workers currently closing a connection
idle cleanup	apache.workers.cleanup	Avg	Double	idle cleanup: Number of workers currently performing idle cleanup procedure
starting	apache.workers.starting	Avg	Double	starting: Number of workers currently starting up a connection
logging	apache.workers.logging	Avg	Double	logging: Number of workers currently busy updating log files
waiting	apache.workers.waiting	Avg	Double	waiting: Number of workers currently waiting for a connection
dns lookup	apache.workers.dns	Avg	Double	dnslookup: Number of workers currently requesting DNS lookup

PHP-FPM monitoring can be enabled along with Apache monitoring. See PHP-FPM for more details.

If you are having issues with Sematext Monitoring, i.e. not seeing Apache metrics, see How do I create the diagnostics package.

For more troubleshooting information please look at Troubleshooting section.