Mantenere i sistemi Linux critici per l'azienda in perfetta efficienza è una sfida. Quando si presentano i colli di bottiglia delle prestazioni e le opportunità di messa a punto, è troppo tardi: i vostri utenti sono già colpiti da un sito web o da un'applicazione lenti o poco reattivi. Questo fa infuriare i vostri utenti e vi costa denaro.
I vostri sistemi Linux generano dati che possono essere estremamente preziosi per i vostri compiti di sysadmin. Dati che possono aiutare a eliminare i colli di bottiglia ed evitare i tempi di inattività. Dati che possono aiutarvi a prendere decisioni sulla distribuzione del carico per garantire un funzionamento più efficiente dei sistemi. Dati che vi aiutano a prepararvi meglio a picchi di traffico imprevisti e a prendere decisioni più informate sul futuro, utilizzando i dati del passato. Abbiamo deciso di costruire uno strumento di analisi per risolvere questo problema. Il risultato: Longview.
Presentazione di Longview
Longview è un nuovo servizio di raccolta di statistiche e grafici. Registra tutte le metriche a livello di sistema e le visualizza in accattivanti grafici zoomabili. Longview consente di ottenere una visione immediata dell'uso delle risorse dei server e di individuare le tendenze di CPU, memoria, rete e processi.
È possibile avere una visione a volo d'uccello dell'intero parco macchine, oppure concentrarsi su un particolare server per visualizzare informazioni dettagliate sui processi in esecuzione, sui servizi in ascolto, sulle connessioni attive e sugli aggiornamenti disponibili. È possibile monitorare l'I/O del disco e il traffico di rete e molto altro ancora. E tutto ciò ha un aspetto assolutamente straordinario!
Installazione
L'agente Longview è open-source e può essere installato su qualsiasi sistema Linux supportato, non è necessario che sia un Linode. Le distribuzioni supportate sono: Debian, Ubuntu, CentOS, e Fedora. Esiste anche una distribuzione tarball del client per i più esperti.
L'installazione automatica è facile: basta accedere a Linode Manager, fare clic sulla scheda Longview, fare clic su "Aggiungi client" e quindi copiare/incollare il comando di installazione di una riga in qualsiasi sistema Linux supportato. In pochi istanti i grafici inizieranno a popolarsi. L'agente longview utilizza gli strumenti di gestione dei pacchetti del sistema, per cui è facile aggiornarlo e/o rimuoverlo in seguito.
Quanto costa?
Basic Longview è completamente GRATUITO e comprende una risoluzione dei dati di 5 minuti e una conservazione dei dati di 30 minuti.
L'aggiornamento dell'account a Longview Pro consente di ottenere una risoluzione al minuto e una conservazione illimitata dei dati:
- Fino a 3 server: $20/mese
- Fino a 10 server: $40/mese
- Fino a 40 server: $100/mese
- Fino a 100 server: $200/mese
Ulteriori informazioni sono disponibili sulla pagina del prodotto Longview e sull'articolo della Linode Library Longview. Buon divertimento!
Commenti (27)
Since this works on non-linode systems, does that mean I can install this on my Raspberry Pi at home?
Yes, we just rolled support for ARM systems. Please give it a shot!
Completely replaced Copperegg with this monitoring (and I happen to like it a lot better). Thanks Linode. 🙂
This is nice and cool and certainly useful but I’m a bit disappointed by the price structure, it’s a bit steep to have to pay US$20 if you have only 1 or 2 instances.
The free version is barely enough to wet your appetite: 30 minutes of retention is really not much to make it useful, by the time you notice something strange has happened, it’s already gone.
Not trying to be difficult — but why would I use Longview at the free level when it only provides 30 minutes of data when I could use New Relic (obviously the biggest competitor here) at the free level they provide 24 hours of data? I don’t follow how 30 minutes of historical data is really going to be all that convincing at the free level.
Ubuntu 13.04 is still not supported? Installed without any errors, but don’t see any data.
Setting up linode-longview (1.0.0) …
* Starting Longview Agent longview [ OK ]
System start/stop links for /etc/init.d/longview already exist.
@Endijs Lisovskis: It is supported! Please open up a ticket if you’re having problems and we’ll get right on it.
Longview Pro is priced very competitively. Look around.
We had to start somewhere with Longview free, and this is what we came up with. It may (or may not) change in the future, but at least starting low gives us the opportunity increase what you get with the free version.
Regardless, this is just version 1.0, and many additional features are planned.
@xxdesmus Good question. Would like to see some case studies too.
How does this affect Longview Pro beta users?
I just installed Longview Agent to my local ubuntu server. It works very well.
One for a Linode still has no restriction. Switch to free soon?
And any plan to open-source Longview Server as well as Agent?
I was just curious if you guys had built this with accessibility in mind. For example for us blind folks who can’t see graphs, seeing a text version of the stats would be awesome, maybe with some statistics to go along with it.
Any chance you are going to revisit Linode Managed pricing to do a similar kind of pricing structure? We are still interested, but unfortunately not at anywhere near the $1600-2000 per month it’s going to cost us based on having 16-20 smallish nodes.
I have one linode instance,the free version is enough for me.
I agree with @xxdesmus. The 30-minute retention on the free version doesn’t make any sense. It’s gone by the time you’re able to view it. Why putting in effort to implement it, if the metrics are barely there.
I think 24 hours of retention is reasonable to do with free. For people with on 1-2 nodes, it’s good enough. For bigger customers it’s a stepping stone to see if it fits the needs and upgrade instantly to pro.
Any chance for some docs on how the agent interacts with the dashboard, and what exactly thr dashboard does with this data?
I installed it. Tried it. and… another me too behind @xxdesmus … 30-min is useless to help understand if Longview provides me the view of my system(s) I need in order to evaluate if it would be worth upgrading to the pro version.
I installed Longview and it looked nice but what can one do with 30 minutes? As per the suggestion in the comments above, I installed New Relic’s PHP and OS agents and now I have 24 hour retention. Let’s face it, we’re not all running big companies off our Linodes.
I guess Longview makes sense if you need more than the 24 hours retention, in which case it’s cheaper than New Relic:
Longview: 1-3 servers for $20/mo
New relic: 1 server for $50/mp ($25/mo with annual commitment)
2 servers? $100/50. 3 servers? $150/75.
To be fair to New Relic, they do have special pricing to SMBs, and will contact you when you sign-up. Still, as Caker said, this is a v1.0 for Longview, and as we know, all 1.0 products can only improve. 🙂
As a new-relic and server density customer, I find the Longview offering very competitive and something that I will be investing in.
It would be nice if we could see disk space as a percentage of available capacity on the dashboard screen.
http://www.bijk.com – $11mth for 1 server, including 15 SMS notifications and 12mths retention. You’ll have to do better longview.
24 hours would be the sweet spot here.
Linode, thank you for new feature, but I would agree with others, who say that 30 min is useless.
I have just 1 linode for now + backup plan and I think it’s too much for me for Longview Pro.
Btw, talking about munin and Relic, do you plan to have metrics for nginx/apache/mysql/php?
Thnx.
Just wanted to add that LongView now offers 12 hours of data for the free plan.
I was JUST ABOUT to skip installing it after reading all the complaints about how 30 minutes is useless – you guys should update this post!
I have followed steps for installation of longview
but when i paste “curl -s https://lv.linode.com/Xnt2 | sudo bash” (changed) it giving me error like
-bash: curl: command not found
sudo: unable to resolve host .
Please tell me the solution.
Note I have replaced the key from my Linode in above command
You’ll need to install curl to fix that issue, and correctly set your hostname to fix the second. Details on setting your hostname can be found here:
https://www.linode.com/docs/guides/getting-started/#sph_setting-the-hostname
Someone mentioned this above.
It would be nice if we could see disk space as a percentage of available capacity on the dashboard screen.
I agree – would be great. Our linodes have had full disks on a number of occasions.