Adding upstream version 1.29.3.upstream/1.29.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 65 insertions, 0 deletions

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+<!--
+title: "Varnish Cache monitoring with Netdata"
+custom_edit_url: https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/varnish/README.md
+sidebar_label: "Varnish Cache"
+-->
+
+# Varnish Cache monitoring with Netdata
+
+Provides HTTP accelerator global, Backends (VBE) and Storages (SMF, SMA, MSE) statistics using `varnishstat` tool.
+
+Note that both, Varnish-Cache (free and open source) and Varnish-Plus (Commercial/Enterprise version), are supported.
+
+## Requirements
+
+-   `netdata` user must be a member of the `varnish` group 
+
+## Charts
+
+This module produces the following charts:
+
+-   Connections Statistics in `connections/s`
+-   Client Requests in `requests/s`
+-   All History Hit Rate Ratio in `percent`
+-   Current Poll Hit Rate Ratio in `percent`
+-   Expired Objects in `expired/s`
+-   Least Recently Used Nuked Objects in `nuked/s`
+-   Number Of Threads In All Pools in `pools`
+-   Threads Statistics in `threads/s`
+-   Current Queue Length in `requests`
+-   Backend Connections Statistics in `connections/s`
+-   Requests To The Backend in `requests/s`
+-   ESI Statistics in `problems/s`
+-   Memory Usage in `MiB`
+-   Uptime in `seconds`
+
+For every backend (VBE):
+
+-   Backend Response Statistics in `kilobits/s`
+
+For every storage (SMF, SMA, or MSE):
+
+-   Storage Usage in `KiB` 
+-   Storage Allocated Objects
+
+## Configuration
+
+Edit the `python.d/varnish.conf` configuration file using `edit-config` from the Netdata [config
+directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`.
+
+```bash
+cd /etc/netdata   # Replace this path with your Netdata config directory, if different
+sudo ./edit-config python.d/varnish.conf
+```
+
+Only one parameter is supported:
+
+```yaml
+instance_name: 'name'
+```
+
+The name of the `varnishd` instance to get logs from. If not specified, the host name is used.
+
+---
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fcollectors%2Fpython.d.plugin%2Fvarnish%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)