mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-25 18:59:33 +03:00
e9527d44e6
A zpool_influxdb command is introduced to ease the collection of zpool statistics into the InfluxDB time-series database. Examples are given on how to integrate with the telegraf statistics aggregator, a companion to influxdb. Finally, a grafana dashboard template is included to show how pool latency distributions can be visualized in a ZFS + telegraf + influxdb + grafana environment. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Richard Elling <Richard.Elling@RichardElling.com> Closes #10786
94 lines
3.5 KiB
Groff
94 lines
3.5 KiB
Groff
.\"
|
|
.\" CDDL HEADER START
|
|
.\"
|
|
.\" The contents of this file are subject to the terms of the
|
|
.\" Common Development and Distribution License (the "License").
|
|
.\" You may not use this file except in compliance with the License.
|
|
.\"
|
|
.\" You can obtain a copy of the license at
|
|
.\" https://opensource.org/licenses/CDDL-1.0
|
|
.\" See the License for the specific language governing permissions
|
|
.\" and limitations under the License.
|
|
.\"
|
|
.\" When distributing Covered Code, include this CDDL HEADER in each
|
|
.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
.\" If applicable, add the following below this CDDL HEADER, with the
|
|
.\" fields enclosed by brackets "[]" replaced with your own identifying
|
|
.\" information: Portions Copyright [yyyy] [name of copyright owner]
|
|
.\"
|
|
.\" CDDL HEADER END
|
|
.\"
|
|
.\"
|
|
.\" Copyright 2020 Richard Elling
|
|
.\" .Dd June 14, 2020
|
|
.TH zpool_influxdb 8
|
|
.SH NAME
|
|
zpool_influxdb \- collect zpool statistics in influxdb line protocol format
|
|
.SH SYNOPSIS
|
|
.LP
|
|
.nf
|
|
\fBzpool_influxdb\fR [--execd] [--no-histogram] [--sum-histogram-buckets]
|
|
[--tags key=value] [pool]
|
|
\fBzpool_influxdb\fR --help
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The \fBzpool_influxdb\fR command produces influxdb line protocol compatible
|
|
metrics from zpools. Like the \fBzpool\fR command, \fBzpool_influxdb\fR
|
|
reads the current pool status and statistics. Unlike the \fBzpool\fR
|
|
command which is intended for humans, \fBzpool_influxdb\fR formats the
|
|
output in influxdb line protocol. The expected use is as a plugin to a
|
|
metrics collector or aggregator, such as telegraf.
|
|
|
|
By default, \fBzpool_influxdb\fR prints pool metrics and status in the
|
|
influxdb line protocol format. All pools are printed, similar to
|
|
the \fBzpool status\fR command. Providing a pool name restricts the
|
|
output to the named pool.
|
|
|
|
Like the \fBzpool\fR command, \fBzpool_influxdb\fR uses internal data
|
|
structures that can change over time as new ZFS releases are made.
|
|
Therefore, the \fBzpool_influxdb\fR command must be compiled against the
|
|
ZFS source. It is expected that later releases of ZFS includes compatible
|
|
\fBzpool_influxdb\fR and \fBzpool\fR commands.
|
|
|
|
.SH OPTIONS
|
|
.TP
|
|
\fB\--execd\fR, \fB-e\fR
|
|
Run in daemon mode compatible with telegraf`s \fBexecd\fR plugin.
|
|
In this mode, the pools are sampled every time there is a [return] on stdin.
|
|
Once a sample printed, \fBzpool_influxdb\fR waits for another [return].
|
|
When run on a terminal, use [ctrl+C] to exit.
|
|
.TP
|
|
\fB\--no-histogram\fR, \fB-n\fR
|
|
Do not print latency and I/O size histograms. This can reduce the total
|
|
amount of data, but one should consider the value brought by the insights
|
|
that latency and I/O size distributions provide. The resulting values
|
|
are suitable for graphing with grafana's heatmap plugin.
|
|
.TP
|
|
\fB--sum-histogram-buckets\fR, \fB-s\fR
|
|
Accumulates bucket values. By default, the values are not accumulated and
|
|
the raw data appears as shown by \fBzpool iostat\fR. This works well for
|
|
grafana's heatmap plugin. Summing the buckets produces output similar to
|
|
prometheus histograms.
|
|
.TP
|
|
\fB--tags\fR, \fB-t\fR
|
|
Adds specified tags to the tag set. Tags are key=value pairs and multiple
|
|
tags are separated by commas. No sanity checking is performed.
|
|
See the InfluxDB Line Protocol format documentation for details on escaping
|
|
special characters used in tags.
|
|
.TP
|
|
\fB\--help\fR, \fB\-h\fR
|
|
Print a usage summary.
|
|
|
|
.SH SEE ALSO
|
|
.LP
|
|
\fBzpool-status\fR(8)
|
|
\fBzpool-iostat\fR(8)
|
|
.PP
|
|
Influxdb https://github.com/influxdata/influxdb
|
|
.PP
|
|
Telegraf https://github.com/influxdata/telegraf
|
|
.PP
|
|
Grafana https://grafana.com
|
|
.PP
|
|
Prometheus https://prometheus.io
|