Collectd
hn-search
Collectd | hn-search | |
---|---|---|
7 | 1,627 | |
2,989 | 524 | |
0.7% | 0.2% | |
9.2 | 2.9 | |
7 days ago | 6 months ago | |
C | TypeScript | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Collectd
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μMon: Stupid simple monitoring
https://collectd.org/ does the gathering (and writing to RRDTool database, if you so desire) part very well. Many plugins, easy to add more (just return one line of text)
Still need RRD viewere but that's not a huge stack
And it scales all the way to hundreds of hosts, as on top of network send/receive of stats it supports few other write formats aside from just RRD files.
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Post Mortem on Mastodon Outage with 30k users
Then you will have same problems but now you can bother manufacturer about it!
Also unless there is something horribly wrong about how often data is written, that SSD should run for ages.
We ran (for a test) consumer SSDs in busy ES cluster and they still lasted like 2 years just fine
The whole setup was a bit of overcomplicated too. RAID10 with 5+1 or 7+1 (yes Linux can do 7 drive RAID10) with hotspare woud've been entirely fine, easier, and most likely faster. You need backups anyway so ZFS doesn't give you much here, just extra CPU usage
Either way, monitoring wait per drive (easy way is to just plug collectd [1] into your monitoring stack, it is light and can monitor A TON of different metrics)
* [1]https://collectd.org/
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IT Pro Tuesday #217 - Python Frameworks, Logging Tutorial, Android Terminal & More
Collectd pulls metrics from the OS, applications, logfiles and external devices for use in monitoring systems, finding performance bottlenecks and capacity planning. hombre_sabio explains, "Collectd is a tiny daemon that gathers information from a system. It enables mechanisms to collect and observe the values in different techniques. It is an open-source monitoring tool to retrieve and manage SNMP master agents."
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PHP7.4 Installation Fail
Setting up php7.4-fpm (7.4.25-1+deb11u1) ... Job for php7.4-fpm.service failed because a fatal signal was delivered to the co ntrol process. See "systemctl status php7.4-fpm.service" and "journalctl -xe" for details. invoke-rc.d: initscript php7.4-fpm, action "start" failed. ● php7.4-fpm.service - The PHP 7.4 FastCGI Process Manager Loaded: loaded (/lib/systemd/system/php7.4-fpm.service; enabled; vendor pre set: enabled) Active: failed (Result: signal) since Mon 2021-12-27 23:53:51 GMT; 215ms ag o Docs: man:php-fpm7.4(8) Process: 2755 ExecStart=/usr/sbin/php-fpm7.4 --nodaemonize --fpm-config /etc /php/7.4/fpm/php-fpm.conf (code=killed, signal=ILL) Process: 2756 ExecStopPost=/usr/lib/php/php-fpm-socket-helper remove /run/ph p/php-fpm.sock /etc/php/7.4/fpm/pool.d/www.conf 74 (code=exited, status=0/SUCCES S) Main PID: 2755 (code=killed, signal=ILL) CPU: 281ms Dec 27 23:53:51 raspberrypi systemd[1]: Starting The PHP 7.4 FastCGI Process Man ager... Dec 27 23:53:51 raspberrypi systemd[1]: php7.4-fpm.service: Main process exited, code=killed, status=4/ILL Dec 27 23:53:51 raspberrypi systemd[1]: php7.4-fpm.service: Failed with result ' signal'. Dec 27 23:53:51 raspberrypi systemd[1]: Failed to start The PHP 7.4 FastCGI Proc ess Manager. dpkg: error processing package php7.4-fpm (--configure): installed php7.4-fpm package post-installation script subprocess returned error exit status 1 Setting up collectd (5.12.0-7.1) ... Job for collectd.service failed because a fatal signal was delivered to the cont rol process. See "systemctl status collectd.service" and "journalctl -xe" for details. invoke-rc.d: initscript collectd, action "restart" failed. ● collectd.service - Statistics collection and monitoring daemon Loaded: loaded (/lib/systemd/system/collectd.service; enabled; vendor prese t: enabled) Active: activating (auto-restart) (Result: signal) since Mon 2021-12-27 23: 53:52 GMT; 200ms ago Docs: man:collectd(1) man:collectd.conf(5) https://collectd.org Process: 2768 ExecStartPre=/usr/sbin/collectd -t (code=killed, signal=SEGV) CPU: 24ms dpkg: error processing package collectd (--configure): installed collectd package post-installation script subprocess returned error e xit status 1 dpkg: dependency problems prevent configuration of openmediavault: openmediavault depends on collectd; however: Package collectd is not configured yet. dpkg: error processing package openmediavault (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: php7.4-fpm collectd openmediavault E: Sub-process /usr/bin/dpkg returned an error code (1)
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CPU Performance of a docker minecraft java server on Raspberry Pi 4
For metrics storage I'm using a Graphite database and the graph UI itself is Grafana. To get these I'm using the Debian repos they supply with mostly off-the-shelf configs. For collecting metrics from the Pi to send to Graphite I use collectd. It has a lot of off-the-shelf plugins you can use to grab metrics like CPU usage & load average, network in/out, memory stats etc. The Minecraft-specific stuff you can get from configuring collectd plugins as well, like the tick lag graph I use the "tail" plugin to follow and parse the server log.
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Lightweight alternative to Grafana
For monitoring, personally I use collectd and Collectd Graph Panel (sadly the latter is abandoned, but it still works fine)
hn-search
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Louis Rossmann: YouTube's Legal Team sent me a letter [video]
If you see a post that ought to have been moderated but hasn't been, the likeliest explanation is that we didn't see it. You can help by flagging it or emailing us at [email protected].
https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
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An Oil Price-Fixing Conspiracy Caused 27% of All Inflation in 2021
Ok, but please don't post unsubstantive comments to Hacker News.
I understand the reason for repeating these sentiments—it's the same reason why they get upvoted to the top of threads*—but repetition of this kind is what we're most trying to avoid here.
https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
https://news.ycombinator.com/newsguidelines.html
* I've marked this one off topic now.
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Validating app for manufacturers enhancing process reliability and efficiency
I was looking for it in the guidelines. There are a couple of conventions for postings. Consider a bit of prior examples: [https://hn.algolia.com/?q=show+hn]
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Show HN: Hacker Search – A semantic search engine for Hacker News
yeah there are only three stories coming up from the site search
https://hn.algolia.com/?q=postgres+clustering
only one is semanthically correct, the other pick up the wrong version of clustering (i.e. k-means instead of multi master writes)
but yeah if one doesn't test the hard cases, how does one know it preserves semantics :D
- Longevity of Recordable CDs, DVDs and Blu-Rays
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The Scientific Method Part 5: Illusions, Delusions, and Dreams
Like dismissing the work of Feyerabend or Wittgenstein without seemingly having read either:
https://hn.algolia.com/?dateRange=pastMonth&page=0&prefix=tr...
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Any Google Analytics Alternatives?
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
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Russian GRU was behind the attack in Vrbětice, NCOZ confirms
If it's not [flagged], there's no flagging and hence also no flagging ring. baybal2 has been banned on and off for years now https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
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Gary Killdall, creator of CP/M, wrote Pixar's original 3D renderer [pdf]
The submitted title was "Gary Killdall, creator of CP/M, wrote Pixar's original 3D renderer".
Submitters: If you want to say what you think is important about an article, that's fine, but do it by adding a comment to the thread. Then your view will be on a level playing field with everyone else's: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
(From https://news.ycombinator.com/newsguidelines.html: "Please use the original title, unless it is misleading or linkbait; don't editorialize.")
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Nearsightedness is at epidemic levels – and the problem begins in childhood
Vision therapy for myopia helps some people, but not everyone, likely due to genetic and neuroplasticity differences, https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu.... Nevertheless, many of the principles are useful for children whose eyes and brains are still developing.
What are some alternatives?
Telegraf - The plugin-driven server agent for collecting & reporting metrics.
duckduckgo-locales - Translation files for <a href="https://duckduckgo.com"> </a>
prometheus - The Prometheus monitoring system and time series database.
v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io
Collectl - Extending collectl to send process data to graphite
parser - 📜 Extract meaningful content from the chaos of a web page
Statsd - Daemon for easy but powerful stats aggregation
readability - A standalone version of the readability lib
Diamond - Diamond is a python daemon that collects system metrics and publishes them to Graphite (and others). It is capable of collecting cpu, memory, network, i/o, load and disk metrics. Additionally, it features an API for implementing custom collectors for gathering metrics from almost any source.
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
Ganglia - Ganglia Web Frontend
milkdown - 🍼 Plugin driven WYSIWYG markdown editor framework.