Re: [lopsa-tech] Http Health Checks
On Tue, Aug 03, 2010 at 01:12:52AM -0400, Damion Alexander spake thusly: > I've already run ZenOSS in a recent past life and spent more time trying > to keep it running smoothly than I did with any other system in my > environment. I really don't want to go down that road again. Same here. I went BACK to Nagios and setup munin for graphing. Life is good. -- Tracy Reed http://tracyreed.org pgp1z0TGPdMXy.pgp Description: PGP signature ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
[lopsa-tech] Ticketing system
Looking for a ticketing system that is preferably open source. I've been looking into RT and OTRS but they were rejected as a solution. The requirements are the following: - ability to have multiple queues - have a web fronted where customers can create new and check the status of their tickets - able to create reports based on time and % of answered/closed tickets - ability to interact with the tickets via email That's pretty much it. I would appreciate any suggestion you might have based on your experience. -- Martin Markovski twitter: @martinmarkovski mobile: +38972272705 ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
On 8/2/10 9:33 PM, Paul Graydon wrote: >On 08/02/2010 03:25 PM, Derek J. Balling wrote: >> After a long dark period of struggling with Zabbix, we came to the following >> conclusions: >> >> Zabbix is an awesome trending tool which tries to also do monitoring >> and sucks badly at it You keep saying that phrase. I don't think it means... oh wait. Exactly what do you mean? I'm curious because I will soon be in the market for a monitoring/trending solution and if possible would like to not have a dozen systems for it. I've already run ZenOSS in a recent past life and spent more time trying to keep it running smoothly than I did with any other system in my environment. I really don't want to go down that road again. Damion ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
Also, let's be fair. SNMP is frightfully small packets, both in the request and the response. D ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
On Aug 2, 2010, at 10:02 PM, Brandon S Allbery KF8NH wrote: > On 8/2/10 21:25 , Derek J. Balling wrote: >> Yes it means twice as much SNMP traffic for a bunch of metrics that are in >> the join-set of "trend" and "monitor/alert", but it's well worth it, in my >> opinion. > > Caching proxy? Is there even such a thing for SNMP? Not sure I'd want it, though. Partly because the cache timeouts would have to be insanely low anyway (on the order of a minute or two), and partly because I wouldn't a piece of cached-data to delay a nagios-alert being triggered. Cheers, D ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 8/2/10 21:25 , Derek J. Balling wrote: > Yes it means twice as much SNMP traffic for a bunch of metrics that are in > the join-set of "trend" and "monitor/alert", but it's well worth it, in my > opinion. Caching proxy? - -- brandon s. allbery [linux,solaris,freebsd,perl] allb...@kf8nh.com system administrator [openafs,heimdal,too many hats] allb...@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.10 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkxXeNIACgkQIn7hlCsL25XWbwCeK9LbfOdAvudBJppOsYr5HC4u s2MAn0X2wHsM1g+Po/8XZDYAo6zxlyli =10z9 -END PGP SIGNATURE- ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
On 08/02/2010 03:25 PM, Derek J. Balling wrote: > On Aug 2, 2010, at 7:25 PM, Simon Lyall wrote: >> Our current monitoring system is slated for replacement over the next few >> months. Currently Zabbix is the front-runner (especially since it >> includes graphing which we are very deficient in), do people know if it's >> a good fit for this sort of role? > After a long dark period of struggling with Zabbix, we came to the following > conclusions: > > Zabbix is an awesome trending tool which tries to also do monitoring > and sucks badly at it > > Nagios is an awesome monitoring tool which tries to also do trending > and sucks badly at it > > And we opted for a "best of breed" strategy, letting "zabbix be zabbix" and > be awesome at trending and such, and letting Nagios do all of our monitoring > and alerting, and never the two shall meet. > > Yes it means twice as much SNMP traffic for a bunch of metrics that are in > the join-set of "trend" and "monitor/alert", but it's well worth it, in my > opinion. > > Cheers, > D This is increasingly my opinion too. I originally planned to ditch Nagios in this workplace once I'd got Zabbix all set up and happy (being familiar with it from previous jobs, nagios too for that matter), but I'm realising there just isn't enough benefit in dropping it. Zabbix is getting me the trend and resource graphing that has already proven it's worth (as I knew it would). Nagios does "just work" though for monitoring, and I'm a big fan of "just works". Paul ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
On Aug 2, 2010, at 7:25 PM, Simon Lyall wrote: > Our current monitoring system is slated for replacement over the next few > months. Currently Zabbix is the front-runner (especially since it > includes graphing which we are very deficient in), do people know if it's > a good fit for this sort of role? After a long dark period of struggling with Zabbix, we came to the following conclusions: Zabbix is an awesome trending tool which tries to also do monitoring and sucks badly at it Nagios is an awesome monitoring tool which tries to also do trending and sucks badly at it And we opted for a "best of breed" strategy, letting "zabbix be zabbix" and be awesome at trending and such, and letting Nagios do all of our monitoring and alerting, and never the two shall meet. Yes it means twice as much SNMP traffic for a bunch of metrics that are in the join-set of "trend" and "monitor/alert", but it's well worth it, in my opinion. Cheers, D ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
On 08/02/2010 01:25 PM, Simon Lyall wrote: > Currently I have a group of web servers that are behind a load balancer. > The load balancer has a simple health check which involves it getting a > specific URL which just grabs a local file and checks the content for > "ok". > > On each machine I have a few scripts that check load, availability > of the application, another file to see if the server is manually offlined > and then write "ok" to the static file if everything looks good and "down" > if any aren't correct. > > However the scripts are a bit messy and unreliable so I was wondering what > sort of thing other people use in this sort of situation? > > Thinking further this is probably a subset of my normal monitoring system > which I shouldn't be duplicating (just having different thresholds to > different actions). > > Our current monitoring system is slated for replacement over the next few > months. Currently Zabbix is the front-runner (especially since it > includes graphing which we are very deficient in), do people know if it's > a good fit for this sort of role? > Zabbix will and does what it does well, but it is limited by only being able to POST variables for progressing through a site. You can define multiple steps and it will graph the response times with different colours for each step, making it relatively easy to see which step is being slowest. I Zabbix by preference for resource monitoring, but ended up knocking up a custom perl script for doing more complex site tests. ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Http Health Checks
If the web server is hosting PHP or some sort of other scripting language, why not have your health check hit a page that runs through some checks and returns good or bad based on the results? - Justin Lintz On Mon, Aug 2, 2010 at 7:25 PM, Simon Lyall wrote: > > Currently I have a group of web servers that are behind a load balancer. > The load balancer has a simple health check which involves it getting a > specific URL which just grabs a local file and checks the content for > "ok". > > On each machine I have a few scripts that check load, availability > of the application, another file to see if the server is manually offlined > and then write "ok" to the static file if everything looks good and "down" > if any aren't correct. > > However the scripts are a bit messy and unreliable so I was wondering what > sort of thing other people use in this sort of situation? > > Thinking further this is probably a subset of my normal monitoring system > which I shouldn't be duplicating (just having different thresholds to > different actions). > > Our current monitoring system is slated for replacement over the next few > months. Currently Zabbix is the front-runner (especially since it > includes graphing which we are very deficient in), do people know if it's > a good fit for this sort of role? > > -- > Simon Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ > "To stay awake all night adds a day to your life" - Stilgar | eMT. > > ___ > Tech mailing list > Tech@lopsa.org > http://lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ > ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
[lopsa-tech] Http Health Checks
Currently I have a group of web servers that are behind a load balancer. The load balancer has a simple health check which involves it getting a specific URL which just grabs a local file and checks the content for "ok". On each machine I have a few scripts that check load, availability of the application, another file to see if the server is manually offlined and then write "ok" to the static file if everything looks good and "down" if any aren't correct. However the scripts are a bit messy and unreliable so I was wondering what sort of thing other people use in this sort of situation? Thinking further this is probably a subset of my normal monitoring system which I shouldn't be duplicating (just having different thresholds to different actions). Our current monitoring system is slated for replacement over the next few months. Currently Zabbix is the front-runner (especially since it includes graphing which we are very deficient in), do people know if it's a good fit for this sort of role? -- Simon Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ "To stay awake all night adds a day to your life" - Stilgar | eMT. ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
Re: [lopsa-tech] Varnish vs Apache Traffic Server vs ???
On Thu, 29 Jul 2010, Paul Graydon wrote: [snip] > Does anyone have any recommendations or thoughts about ATS vs Varnish, > or thoughts about other products that may be more suited? > Am I about to unleash a whole world of hurt on myself? We use nginx at adams.edu. It works pretty well on its own though we're looking to stick it behind LVS for better load balancing. -- Randy Smith http://www.vuser.org/ http://perlstalker.blogspot.com/ signature.asc Description: Digital signature ___ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
