diff --git a/docs/netdata-agent/reload-health-configuration.md b/docs/netdata-agent/reload-health-configuration.md new file mode 100644 index 0000000000..040f9bec14 --- /dev/null +++ b/docs/netdata-agent/reload-health-configuration.md @@ -0,0 +1,9 @@ +# Reload health configuration + +## Unix systems + +No need to restart the Netdata Agent after modifying health configuration files (alerts). Use `netdatacli` to avoid metric collection gaps. + +```bash +sudo netdatacli reload-health +``` diff --git a/docs/netdata-agent/start-stop-restart.md b/docs/netdata-agent/start-stop-restart.md index e8c2da3dbf..c643e56ecc 100644 --- a/docs/netdata-agent/start-stop-restart.md +++ b/docs/netdata-agent/start-stop-restart.md @@ -1,28 +1,22 @@ # Start, stop, or restart the Netdata Agent -When you install the Netdata Agent, the [daemon](/src/daemon/README.md) is -configured to start at boot and stop and restart/shutdown. +The Netdata Agent automatically starts at boot after installation. -You will most often need to _restart_ the Agent to load new or editing configuration files. -[Health configuration](#reload-health-configuration) files are the only exception, as they can be reloaded without restarting -the entire Agent. +> In most cases, you need to **restart the Netdata service** to apply changes to configuration files. [Health configuration](/docs/netdata-agent/reload-health-configuration.md) files, which define alerts, are an exception. They can be reloaded **without restarting** by using the `netdatacli` tool. +> +> Restarting the Netdata Agent will cause temporary gaps in your collected metrics. This occurs while the netdata process reinitializes its data collectors and database engine. -Stopping or restarting the Netdata Agent will cause gaps in stored metrics until the `netdata` process initiates -collectors and the database engine. +## Unix systems -## Using `systemctl`, `service`, or `init.d` +### Using `systemctl`, `service`, or `init.d` -This is the recommended way to start, stop, or restart the Netdata daemon. +| Action | Systemd | Non-systemd | +|---------|--------------------------------|------------------------------| +| start | `sudo systemctl start netdata` | `sudo service netdata start` | +| stop | `sudo systemctl stop netdata` | `sudo service netdata stop` | +| restart | `sudo systemctl stop netdata` | `sudo service netdata stop` | -- To **start** Netdata, run `sudo systemctl start netdata`. -- To **stop** Netdata, run `sudo systemctl stop netdata`. -- To **restart** Netdata, run `sudo systemctl restart netdata`. - -If the above commands fail, or you know that you're using a non-systemd system, try using the `service` command: - -- **service**: `sudo service netdata start`, `sudo service netdata stop`, `sudo service netdata restart` - -## Using `netdata` +### Using `netdata` Use the `netdata` command, typically located at `/usr/sbin/netdata`, to start the Netdata daemon. @@ -32,122 +26,22 @@ sudo netdata If you start the daemon this way, close it with `sudo killall netdata`. -## Using `netdatacli` +### Using `netdatacli` -The Netdata Agent also comes with a [CLI tool](/src/cli/README.md) capable of performing shutdowns. Start the Agent back up -using your preferred method listed above. +The Netdata Agent also comes with a [CLI tool](/src/cli/README.md) capable of performing shutdowns. Start the Agent back up using your preferred method listed above. ```bash sudo netdatacli shutdown-agent ``` -## Netdata MSI installations +## Windows systems -Netdata provides an installer for Windows using WSL, on those installations by using a Windows terminal (e.g. the Command prompt or Windows Powershell) you can: +> **Note** +> +> You will need to run PowerShell as administrator. -- Start Netdata, by running `start-netdata` -- Stop Netdata, by running `stop-netdata` -- Restart Netdata, by running `restart-netdata` +- To **start** Netdata, run `Start-Service Netdata`. +- To **stop** Netdata, run `Stop-Service Netdata`. +- To **restart** Netdata, run `Restart-Service Netdata`. -## Reload health configuration - -You do not need to restart the Netdata Agent between changes to health configuration files, such as specific health -entities. Instead, use [`netdatacli`](#using-netdatacli) and the `reload-health` option to prevent gaps in metrics -collection. - -```bash -sudo netdatacli reload-health -``` - -If `netdatacli` doesn't work on your system, send a `SIGUSR2` signal to the daemon, which reloads health configuration -without restarting the entire process. - -```bash -killall -USR2 netdata -``` - -## Force stop stalled or unresponsive `netdata` processes - -In rare cases, the Netdata Agent may stall or not properly close sockets, preventing a new process from starting. In -these cases, try the following three commands: - -```bash -sudo systemctl stop netdata -sudo killall netdata -ps aux| grep netdata -``` - -The output of `ps aux` should show no `netdata` or associated processes running. You can now start the Netdata Agent -again with `service netdata start`, or the appropriate method for your system. - -## Starting Netdata at boot - -In the `system` directory you can find scripts and configurations for the -various distros. - -### systemd - -The installer already installs `netdata.service` if it detects a systemd system. - -To install `netdata.service` by hand, run: - -```sh -# stop Netdata -killall netdata - -# copy netdata.service to systemd -cp system/netdata.service /etc/systemd/system/ - -# let systemd know there is a new service -systemctl daemon-reload - -# enable Netdata at boot -systemctl enable netdata - -# start Netdata -systemctl start netdata -``` - -### init.d - -In the system directory you can find `netdata-lsb`. Copy it to the proper place according to your distribution -documentation. For Ubuntu, this can be done via running the following commands as root. - -```sh -# copy the Netdata startup file to /etc/init.d -cp system/netdata-lsb /etc/init.d/netdata - -# make sure it is executable -chmod +x /etc/init.d/netdata - -# enable it -update-rc.d netdata defaults -``` - -### openrc (gentoo) - -In the `system` directory you can find `netdata-openrc`. Copy it to the proper -place according to your distribution documentation. - -### CentOS / Red Hat Enterprise Linux - -For older versions of RHEL/CentOS that don't have systemd, an init script is included in the system directory. This can -be installed by running the following commands as root. - -```sh -# copy the Netdata startup file to /etc/init.d -cp system/netdata-init-d /etc/init.d/netdata - -# make sure it is executable -chmod +x /etc/init.d/netdata - -# enable it -chkconfig --add netdata -``` - -_There have been some recent work on the init script, see PR -<https://github.com/netdata/netdata/pull/403>_ - -### other systems - -You can start Netdata by running it from `/etc/rc.local` or equivalent. +If you prefer to manage the Agent through the GUI, you can start-stop and restart the `Netdata` service from the "Services" tab of Task Manager.