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Merge pull request #146 from zrepl/problame/add-some-dist-stuff
Grafana Dashboard & Systemd Unit
This commit is contained in:
Christian Schwarz
GitHub
commit
7424423d9a
@ -26,6 +26,7 @@ Check out the *Coding Workflow* section below for details.
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* Make sure your distro is compatible with the paths in `docs/installation.rst`.
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* Ship a default config that adheres to your distro's `hier` and logging system.
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* Ship a service manager file and _please_ try to upstream it to this repository.
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* `dist/systemd` contains a Systemd unit template
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* Use `make release ZREPL_VERSION='mydistro-1.2.3_1'`
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* Your distro's name and any versioning supplemental to zrepl's (e.g. package revision) should be in this string
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* Make sure you are informed about new zrepl versions, e.g. by subscribing to GitHub's release RSS feed.
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595
dist/grafana/grafana-prometheus-zrepl-0.1.json
vendored
Normal file
595
dist/grafana/grafana-prometheus-zrepl-0.1.json
vendored
Normal file
@ -0,0 +1,595 @@
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{
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||||
"annotations": {
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||||
"list": [
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{
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||||
"$$hashKey": "object:3351",
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"builtIn": 1,
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"datasource": "-- Grafana --",
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||||
"enable": true,
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||||
"hide": true,
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||||
"iconColor": "rgba(0, 211, 255, 1)",
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||||
"name": "Annotations & Alerts",
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||||
"type": "dashboard"
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}
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]
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},
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||||
"editable": true,
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||||
"gnetId": null,
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"graphTooltip": 1,
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||||
"id": 7,
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||||
"iteration": 1552746418826,
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||||
"links": [],
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||||
"panels": [
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||||
{
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||||
"content": "# zrepl Prometheus Metrics\n\nzrepl exposes Prometheus metrics and ships with this Grafana dashboard.\nThe exported metrics are suitable for health checks:\n\n* The log should generally be warning & error-free\n * The `Log Messages that require attention` graph visualizes log message counts indicating problems.\n* The number of goroutines should not grow unboundedly over time.\n * During replication, the number of goroutines can be way higher than during idle time.\n * If the goroutine count grows with each replication, there is clearly a goroutine leak. Please open a bug report.\n* The sys memory consumption should not grow unboundedly over time.\n * Note that the Go runtime pre-allocates some of its heap from the OS.\n * zrepl actually uses much less memory than allocated from the OS.\n * Since Go 1.11, Go pre-allocates more aggressively.\n* Monitor that some data is replicated, although that metric does not guarantee that replication was successful.\n\n**In general, note that the exported metrics are not stable unless declared otherwise.**",
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},
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"mode": "markdown",
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"title": "Panel Title",
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"type": "text"
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},
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"legend": {
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"show": true,
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"total": false,
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"values": false
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},
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"lines": true,
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"linewidth": 1,
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"format": "time_series",
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"refId": "A"
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],
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},
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{
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|
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"format": "time_series",
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"intervalFactor": 1,
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"alias": "/replicated bytes in last.*/",
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|
||||
"format": "time_series",
|
||||
"hide": false,
|
||||
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||||
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|
||||
"legendFormat": "replication data rate zrepl_job={{zrepl_job}}",
|
||||
"refId": "A"
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},
|
||||
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||||
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|
||||
"format": "time_series",
|
||||
"hide": false,
|
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|
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||||
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||||
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|
||||
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|
||||
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||||
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||||
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|
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||||
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|
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|
||||
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|
||||
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|
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|
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"show": true
|
||||
}
|
||||
]
|
||||
}
|
||||
],
|
||||
"refresh": "1m",
|
||||
"schemaVersion": 16,
|
||||
"style": "dark",
|
||||
"tags": [],
|
||||
"templating": {
|
||||
"list": [
|
||||
{
|
||||
"allValue": null,
|
||||
"current": {
|
||||
"text": "zrepl",
|
||||
"value": "zrepl"
|
||||
},
|
||||
"datasource": "prometheus",
|
||||
"hide": 0,
|
||||
"includeAll": false,
|
||||
"label": "Prometheus Job Name",
|
||||
"multi": false,
|
||||
"name": "prom_job_name",
|
||||
"options": [],
|
||||
"query": "label_values(up, job)",
|
||||
"refresh": 1,
|
||||
"regex": "",
|
||||
"sort": 1,
|
||||
"tagValuesQuery": "",
|
||||
"tags": [],
|
||||
"tagsQuery": "",
|
||||
"type": "query",
|
||||
"useTags": false
|
||||
}
|
||||
]
|
||||
},
|
||||
"time": {
|
||||
"from": "now-2d",
|
||||
"to": "now"
|
||||
},
|
||||
"timepicker": {
|
||||
"refresh_intervals": [
|
||||
"5s",
|
||||
"10s",
|
||||
"30s",
|
||||
"1m",
|
||||
"5m",
|
||||
"15m",
|
||||
"30m",
|
||||
"1h",
|
||||
"2h",
|
||||
"1d"
|
||||
],
|
||||
"time_options": [
|
||||
"5m",
|
||||
"15m",
|
||||
"1h",
|
||||
"6h",
|
||||
"12h",
|
||||
"24h",
|
||||
"2d",
|
||||
"7d",
|
||||
"30d"
|
||||
]
|
||||
},
|
||||
"timezone": "",
|
||||
"title": "zrepl 0.1",
|
||||
"uid": "xTljn4qmk",
|
||||
"version": 6
|
||||
}
|
||||
41
dist/systemd/zrepl.service
vendored
Normal file
41
dist/systemd/zrepl.service
vendored
Normal file
@ -0,0 +1,41 @@
|
||||
[Unit]
|
||||
Description=zrepl daemon
|
||||
Documentation=https://zrepl.github.io
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
ExecStart=/usr/local/bin/zrepl --config /etc/zrepl/zrepl.yml daemon
|
||||
RuntimeDirectory=zrepl
|
||||
RuntimeDirectoryMode=0700
|
||||
|
||||
ProtectSystem=strict
|
||||
#PrivateDevices=yes # TODO ZFS needs access to /dev/zfs, could we limit this?
|
||||
ProtectKernelTunables=yes
|
||||
ProtectControlGroups=yes
|
||||
PrivateTmp=yes
|
||||
#PrivateUsers=yes # TODO Does not work, why?
|
||||
ProtectKernelModules=true
|
||||
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
|
||||
RestrictNamespaces=true
|
||||
RestrictRealtime=yes
|
||||
SystemCallArchitectures=native
|
||||
|
||||
# BEGIN ProtectHome
|
||||
ProtectHome=read-only # DEBIAN STRETCH
|
||||
# ProtectHome=tmpfs # FEDORA 28 / 29
|
||||
# END ProtectHome
|
||||
|
||||
# BEGIN SystemCallFilter
|
||||
## BEGIN DEBIAN STRETCH
|
||||
SystemCallFilter=~ @mount @cpu-emulation @keyring @module @obsolete @privileged @raw-io @debug @clock @resources
|
||||
## END DEBIAN STRETCH
|
||||
## BEGIN FEDORA 28/29
|
||||
## Syscall blacklist (should be fairly stable)
|
||||
#SystemCallFilter=~ @mount @aio @cpu-emulation @keyring @memlock @module @obsolete @privileged @raw-io @reboot @setuid @swap @sync @timer @debug @clock @chown @resources
|
||||
## Syscall whitelist (not sure how stable)
|
||||
#SystemCallFilter=@default @file-system @process @basic-io @ipc @network-io @signal @io-event brk mprotect sched_getaffinity ioctl getrandom
|
||||
## END END FEDORA 28/29
|
||||
# END SystemCallFilter
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
@ -9,14 +9,20 @@ Monitoring endpoints are configured in the ``global.monitoring`` section of the
|
||||
|
||||
.. _monitoring-prometheus:
|
||||
|
||||
Prometheus
|
||||
----------
|
||||
Prometheus & Grafana
|
||||
--------------------
|
||||
|
||||
zrepl can expose `Prometheus metrics <https://prometheus.io/docs/instrumenting/exposition_formats/>`_ via HTTP.
|
||||
The ``listen`` attribute is a `net.Listen <https://golang.org/pkg/net/#Listen>`_ string for tcp, e.g. ``:9091`` or ``127.0.0.1:9091``.
|
||||
|
||||
The Prometheues monitoring job appears in the ``zrepl control`` job list and may be specified **at most once**.
|
||||
At the time of writing, there is no stability guarantee on the exported metrics.
|
||||
|
||||
zrepl also ships with an importable `Grafana <https://grafana.com>`_ dashboard that consumes the Prometheus metrics:
|
||||
see :repomasterlink:`dist/grafana`.
|
||||
The dashboard also contains some advice on which metrics are important to monitor.
|
||||
|
||||
.. NOTE::
|
||||
|
||||
At the time of writing, there is no stability guarantee on the exported metrics.
|
||||
|
||||
::
|
||||
|
||||
|
||||
@ -173,6 +173,7 @@ texinfo_documents = [
|
||||
# http://www.sphinx-doc.org/en/stable/ext/extlinks.html
|
||||
extlinks = {
|
||||
'issue':('https://github.com/zrepl/zrepl/issues/%s', 'issue #'),
|
||||
'repomasterlink':('https://github.com/zrepl/zrepl/blob/master/%s', ''),
|
||||
'sampleconf':('https://github.com/zrepl/zrepl/blob/master/config/samples%s', 'config/samples'),
|
||||
'commit':('https://github.com/zrepl/zrepl/commit/%s', 'commit '),
|
||||
}
|
||||
|
||||
@ -64,3 +64,10 @@ Restarting
|
||||
The daemon handles SIGINT and SIGTERM for graceful shutdown.
|
||||
Graceful shutdown means at worst that a job will not be rescheduled for the next interval.
|
||||
The daemon exits as soon as all jobs have reported shut down.
|
||||
|
||||
Systemd Unit File
|
||||
~~~~~~~~~~~~~~~~~
|
||||
|
||||
A systemd service defintion template is available in :repomasterlink:`dist/systemd`.
|
||||
Note that some of the options only work on recent versions of systemd.
|
||||
Any help & improvements are very welcome, see :issue:`145`.
|
||||
Loading…
Reference in New Issue
Block a user