Re: [Ganglia-general] O'Reilly eBook on Ganglia
On 12/09/2011 07:51 PM, Matt Massie wrote: What are the things you would be most interested in? Are there other topics you'd like to see covered? I would also like to see more details on how and why for different common variations. For example, some people set 'host' to something other than the hostname so that they can group by something other than machine. -- Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ ___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
Re: [Ganglia-general] O'Reilly eBook on Ganglia
Thanks for all the replies. I've been silently taking down notes. Feel free to keep the ideas coming. -Matt On Tue, Dec 13, 2011 at 6:43 AM, Chris Burroughs chris.burrou...@gmail.comwrote: On 12/09/2011 07:51 PM, Matt Massie wrote: What are the things you would be most interested in? Are there other topics you'd like to see covered? I would also like to see more details on how and why for different common variations. For example, some people set 'host' to something other than the hostname so that they can group by something other than machine. -- Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
[Ganglia-general] Ganglia Web 2.2.0 released
Ganglia Web 2.2.0 has been released. Announcement is here http://ganglia.info/?p=479 Noteable changes are described here http://ganglia.info/?p=464 Thanks to Peter Piela and Jeff Buchbinder for their vast amount of contributions to this release. Vladimir -- Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ ___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
Re: [Ganglia-general] Gmetric Kilobyte unit representation
Instead of sending value as kilobytes send it as Bytes (multiply with 1024 obviously prior to sending). RRDtool will scale the graph for you correctly. Vladimir On Tue, 13 Dec 2011, Aidan Wong wrote: Thank you Alex for the info. I was apparently wishful thinking about Ganglia capabilitiesŠ Any info on an easy way to search through the mailing list archives? On 12/12/11 2:35 PM, Alex Dean a...@crackpot.org wrote: The graph is showing you a value of roughly 10.5 million Kilobytes, which matches what you sent via gmetric. The label 'Kilobytes' is just text, and not interpreted by ganglia in any way, so no unit conversion will be performed. If you want the graph to be in gigabytes, do the division in your script prior to calling gmetric. $ gmetric --conf=gmond.conf --name test_metric2 --value 10.57 --type float --units Gigabytes alex On Dec 12, 2011, at 2:01 PM, Aidan Wong wrote: Hi, I'm trying to pass a metric with Gmetric in Kilobytes but the unit representation in the graph is not correct. Example: $ gmetric --conf=gmond.conf --name test_metric2 --value 10570393 --type int32 --units Kilobytes For the command above, the graph represents 10570393 Kb as 10.57 Mb instead of 10.57 Gb. See picture attached. Can someone indicate how I should make the graph display the correct byte conversion? Also is it possible to search the archive mailing list items from the SourceForge forum list? http://sourceforge.net/mailarchive/forum.php?forum_name=ganglia-general Thanks graph.jpg-- Learn Windows Azure Live! Tuesday, Dec 13, 2011 Microsoft is holding a special Learn Windows Azure training event for developers. It will provide a great way to learn Windows Azure and what it provides. You can attend the event by watching it streamed LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure__ _ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general -- Learn Windows Azure Live! Tuesday, Dec 13, 2011 Microsoft is holding a special Learn Windows Azure training event for developers. It will provide a great way to learn Windows Azure and what it provides. You can attend the event by watching it streamed LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure ___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general -- Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ ___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general -- Cloud Computing - Latest Buzzword or a Glimpse of the Future? This paper surveys cloud computing today: What are the benefits? Why are businesses embracing it? What are its payoffs and pitfalls? http://www.accelacomm.com/jaw/sdnl/114/51425149/___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
Re: [Ganglia-general] Hierarchical metric names
Is there interest in formalizing a hierarchical naming convention for metrics in Ganglia? I agree that Ganglia's existing methods are very simplistic. On the positive side, they are very easy to understand and they are both sufficient and effective for simple situations On the other hand, there are various issues: a) multiple instances - net devices, filesystems, CPUs (maybe you've seen my recent release of ganglia-modules-solaris with per-core CPU support and per-disk IO stats?), b) dynamic names: do you really want to see `net_bytes_out_eth1' if eth1 is a USB device and tomorrow it might appear as eth2 or eth3? Or does Ganglia need to have some mapping functionality, so the name would appear as `net_bytes_out_wan' no matter what physical device name was used? The same issue applies to filesystems. c) use of an existing hierarchy: could we borrow from SNMP and use the OID, for example? Maybe a future version of Ganglia could just be a multicast transport for SNMP, and the gmetad would just poll the normal SNMP daemon to get the mappings of OID-real device names d) adding or removing devices (e.g. USB net or storage, virtual devices on a VM, provisioning a SAN filesystem over fibre channel) while Ganglia is running - at a very simplistic level, gmond could just restart itself when it notices a change, but if a system is very dynamic, it could appear that the daemon is flapping e) application-specific monitoring: e.g. you run two UAT environments, a demo environment and a production environment. Each application instance is a JVM. You move the UAT environments around between different servers, but you want to keep all the history from each JVM and associate it with the name of the environment rather than the name of the server. f) excluding some things from aggregation: in the per-core CPU monitoring, it doesn't mean anything to look at an aggregation of core no. 3 from each of your 10 hosts, especially if 4 of the hosts only have 2 cores. g) common solution with Nagios and other technologies: it may also be desirable to have some naming convention (with meta-data support) that can be shared, for example, something that could be used by Nagios, preferably with enough meta-data to allow auto-configuration of things that should be monitored My feeling is that all these types of issues should go on a roadmap for Ganglia 4 or beyond. It is probably not possible to address them all in one go, but if they are factored in to the next iteration of the protocol, then they can be added incrementally -- Cloud Computing - Latest Buzzword or a Glimpse of the Future? This paper surveys cloud computing today: What are the benefits? Why are businesses embracing it? What are its payoffs and pitfalls? http://www.accelacomm.com/jaw/sdnl/114/51425149/ ___ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
