src/go/plugin/go.d/modules/phpdaemon/integrations/phpdaemon.md
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# phpDaemon
<img src="https://netdata.cloud/img/php.svg" width="150"/>
Plugin: go.d.plugin
Module: phpdaemon
<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
## Overview
This collector monitors phpDaemon instances.
This collector is supported on all platforms.
This collector supports collecting metrics from multiple instances of this integration, including remote instances.
### Default Behavior
#### Auto-Detection
This integration doesn't support auto-detection.
#### Limits
The default configuration for this integration does not impose any limits on data collection.
#### Performance Impact
The default configuration for this integration is not expected to impose a significant performance impact on the system.
## Metrics
Metrics grouped by *scope*.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
### Per phpDaemon instance
These metrics refer to the entire monitored application.
This scope has no labels.
Metrics:
| Metric | Dimensions | Unit |
|:------|:----------|:----|
| phpdaemon.workers | alive, shutdown | workers |
| phpdaemon.alive_workers | idle, busy, reloading | workers |
| phpdaemon.idle_workers | preinit, init, initialized | workers |
| phpdaemon.uptime | time | seconds |
## Alerts
There are no alerts configured by default for this integration.
## Setup
### Prerequisites
#### Enable phpDaemon's HTTP server
Statistics expected to be in JSON format.
<details>
<summary>phpDaemon configuration</summary>
Instruction from [@METAJIJI](https://github.com/METAJIJI).
To enable `phpd` statistics on http, you must enable the http server and write an application.
Application is important, because standalone application [ServerStatus.php](https://github.com/kakserpom/phpdaemon/blob/master/PHPDaemon/Applications/ServerStatus.php) provides statistics in html format and unusable for `netdata`.
```php
// /opt/phpdaemon/conf/phpd.conf
path /opt/phpdaemon/conf/AppResolver.php;
Pool:HTTPServer {
privileged;
listen '127.0.0.1';
port 8509;
}
```
```php
// /opt/phpdaemon/conf/AppResolver.php
<?php
class MyAppResolver extends \PHPDaemon\Core\AppResolver {
public function getRequestRoute($req, $upstream) {
if (preg_match('~^/(ServerStatus|FullStatus)/~', $req->attrs->server['DOCUMENT_URI'], $m)) {
return $m[1];
}
}
}
return new MyAppResolver;
```
```php
/opt/phpdaemon/conf/PHPDaemon/Applications/FullStatus.php
<?php
namespace PHPDaemon\Applications;
class FullStatus extends \PHPDaemon\Core\AppInstance {
public function beginRequest($req, $upstream) {
return new FullStatusRequest($this, $upstream, $req);
}
}
```
```php
// /opt/phpdaemon/conf/PHPDaemon/Applications/FullStatusRequest.php
<?php
namespace PHPDaemon\Applications;
use PHPDaemon\Core\Daemon;
use PHPDaemon\HTTPRequest\Generic;
class FullStatusRequest extends Generic {
public function run() {
$stime = microtime(true);
$this->header('Content-Type: application/javascript; charset=utf-8');
$stat = Daemon::getStateOfWorkers();
$stat['uptime'] = time() - Daemon::$startTime;
echo json_encode($stat);
}
}
```
</details>
### Configuration
#### File
The configuration file name for this integration is `go.d/phpdaemon.conf`.
You can edit the configuration file using the `edit-config` script from the
Netdata [config directory](/docs/netdata-agent/configuration/README.md#the-netdata-config-directory).
```bash
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/phpdaemon.conf
```
#### Options
The following options can be defined globally: update_every, autodetection_retry.
<details open><summary>Config options</summary>
| Name | Description | Default | Required |
|:----|:-----------|:-------|:--------:|
| update_every | Data collection frequency. | 1 | no |
| autodetection_retry | Recheck interval in seconds. Zero means no recheck will be scheduled. | 0 | no |
| url | Server URL. | http://127.0.0.1:8509/FullStatus | yes |
| timeout | HTTP request timeout. | 2 | no |
| username | Username for basic HTTP authentication. | | no |
| password | Password for basic HTTP authentication. | | no |
| proxy_url | Proxy URL. | | no |
| proxy_username | Username for proxy basic HTTP authentication. | | no |
| proxy_password | Password for proxy basic HTTP authentication. | | no |
| method | HTTP request method. | GET | no |
| body | HTTP request body. | | no |
| headers | HTTP request headers. | | no |
| not_follow_redirects | Redirect handling policy. Controls whether the client follows redirects. | no | no |
| tls_skip_verify | Server certificate chain and hostname validation policy. Controls whether the client performs this check. | no | no |
| tls_ca | Certification authority that the client uses when verifying the server's certificates. | | no |
| tls_cert | Client TLS certificate. | | no |
| tls_key | Client TLS key. | | no |
</details>
#### Examples
##### Basic
A basic example configuration.
<details open><summary>Config</summary>
```yaml
jobs:
- name: local
url: http://127.0.0.1:8509/FullStatus
```
</details>
##### HTTP authentication
HTTP authentication.
<details open><summary>Config</summary>
```yaml
jobs:
- name: local
url: http://127.0.0.1:8509/FullStatus
username: username
password: password
```
</details>
##### HTTPS with self-signed certificate
HTTPS with self-signed certificate.
<details open><summary>Config</summary>
```yaml
jobs:
- name: local
url: http://127.0.0.1:8509/FullStatus
tls_skip_verify: yes
```
</details>
##### Multi-instance
> **Note**: When you define multiple jobs, their names must be unique.
Collecting metrics from local and remote instances.
<details open><summary>Config</summary>
```yaml
jobs:
- name: local
url: http://127.0.0.1:8509/FullStatus
- name: remote
url: http://192.0.2.1:8509/FullStatus
```
</details>
## Troubleshooting
### Debug Mode
**Important**: Debug mode is not supported for data collection jobs created via the UI using the Dyncfg feature.
To troubleshoot issues with the `phpdaemon` collector, run the `go.d.plugin` with the debug option enabled. The output
should give you clues as to why the collector isn't working.
- Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on
your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`.
```bash
cd /usr/libexec/netdata/plugins.d/
```
- Switch to the `netdata` user.
```bash
sudo -u netdata -s
```
- Run the `go.d.plugin` to debug the collector:
```bash
./go.d.plugin -d -m phpdaemon
```
### Getting Logs
If you're encountering problems with the `phpdaemon` collector, follow these steps to retrieve logs and identify potential issues:
- **Run the command** specific to your system (systemd, non-systemd, or Docker container).
- **Examine the output** for any warnings or error messages that might indicate issues. These messages should provide clues about the root cause of the problem.
#### System with systemd
Use the following command to view logs generated since the last Netdata service restart:
```bash
journalctl _SYSTEMD_INVOCATION_ID="$(systemctl show --value --property=InvocationID netdata)" --namespace=netdata --grep phpdaemon
```
#### System without systemd
Locate the collector log file, typically at `/var/log/netdata/collector.log`, and use `grep` to filter for collector's name:
```bash
grep phpdaemon /var/log/netdata/collector.log
```
**Note**: This method shows logs from all restarts. Focus on the **latest entries** for troubleshooting current issues.
#### Docker Container
If your Netdata runs in a Docker container named "netdata" (replace if different), use this command:
```bash
docker logs netdata 2>&1 | grep phpdaemon
```