What is Ganglia?
Posted by Matt Massie in FYI on November 9, 2005
Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. It leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization. It uses carefully engineered data structures and algorithms to achieve very low per-node overheads and high concurrency. The implementation is robust, has been ported to an extensive set of operating systems and processor architectures, and is currently in use on thousands of clusters around the world. It has been used to link clusters across university campuses and around the world and can scale to handle clusters with 2000 nodes.
Ganglia is a BSD-licensed open-source project that grew out of the University of California, Berkeley Millennium Project which was initially funded in large part by the National Partnership for Advanced Computational Infrastructure (NPACI) and National Science Foundation RI Award EIA-9802069. NPACI is funded by the National Science Foundation and strives to advance science by creating a ubiquitous, continuous, and pervasive national computational infrastructure: the Grid. Current support comes from Planet Lab: an open platform for developing, deploying, and accessing planetary-scale services.
Ganglia Web 3.5.7 released
Posted by vuksan in Uncategorized on February 18, 2013
Ganglia Web 3.5.7 has been released. Previous version (3.5.6) omitted key files from packaging. This version corrects it
Download the release from
https://sourceforge.net/projects/ganglia/files/ganglia-web/3.5.7/
Ganglia Web 3.5.6 released
Posted by vuksan in Uncategorized on February 14, 2013
Ganglia Web 3.5.6 has been released. Major changes are
- Number of fixes to address XSS (Cross Site Scripting) issues
- Enhancement to the host view if use option “metric_groups_initially_collapsed”. Clicking on metric groups dynamically loads images instead of reloading the page
- Incorporate legend in the selection when doing Inspect graph
If you are using Ganglia Web on a publicly available site you are advised to upgrade as soon as possible.
Release notes can be found here
Download the release from
https://sourceforge.net/projects/ganglia/files/ganglia-web/3.5.6/
Ganglia 3.5.0 released
Posted by vuksan in Uncategorized on February 14, 2013
Ganglia dev team is happy to announce release of Ganglia 3.5.0. Key features in this release are
- gmond uses a separate thread to service gmetad requests. This should improve performance
- Updates to a number of core Python collection modules
You can download the latest release from
http://sourceforge.net/projects/ganglia/files/ganglia%20monitoring%20core/
Ganglia Web 3.5.2 released
Posted by vuksan in Uncategorized on July 16, 2012
Ganglia Web 3.5.2 has been released. Major changes are
- Fix for stacked graphs not showing after upgrading to 3.5.1
- Inspect graph now uses AJAX calls to retrieve data which should help in situations where users use Basic authentication
You can find release notes here
https://github.com/ganglia/ganglia-web/wiki/Release-Notes
Download the release from
https://sourceforge.net/projects/ganglia/files/ganglia-web/3.5.2/
Ganglia Web 3.5.1 Release – Security Advisory
Posted by vuksan in Uncategorized on July 13, 2012
There is a security issue in Ganglia Web going back to at least 3.1.7 which can lead to arbitrary script being executed with web user privileges possibly leading to a machine compromise. Issue has been fixed in the latest version of Ganglia Web which can be downloaded from
https://sourceforge.net/projects/ganglia/files/ganglia-web/3.5.1/
If you are running Ganglia Web open on the internet you are advised to upgrade ASAP or at a minimum password protect access to Ganglia Web.
We’ll have a write up about details of the vulnerability in few days.
Overlaying timeshifted data
Posted by vuksan in Announcements on May 16, 2012
Often times when troubleshooting an issue it is useful to compare current data to data from a previous period. For example you observe high load on one machine and want to compare it to the load from a previous day. In the past you would simply open up two browser windows with data from each period and compare them. This may prove tricky as you may be dealing with different Y scales. To help with that we have recently added ability to overlay timeshifted data onto any host metric graph in Ganglia. What this means is that next to each metric graph you will see a button that says Timeshift. Clicking on it will overlay data from the same period prior to it e.g. if you are viewing hour it will overlay data from an hour ago, if you are viewing day it will overlay data from a day ago etc. For example this shows one minute load average overlaid with data from yesterday
Timeshifted load one average
whereas graph below displays data from a week ago overlaid over this weeks data
Timeshift overlay CPU user
Preliminary support for this feature has already landed in the trunk of our Ganglia Web repository
https://github.com/ganglia/ganglia-web
It is full usable although we are working on refining it. This should be included in Ganglia Web 3.5.0 when it’s fully ready.
Ganglia Web 3.4.2 released
Posted by Bernard Li in Announcements, Releases on May 8, 2012
The Ganglia team is pleased to release Ganglia Web 3.4.2. Notable changes are:
- Improvements to the Live Dashboard
- Fixed the aggregate graphs metric auto complete which was broken in 3.4.1
- Add ability to specify critical and warning thresholds which can be used in Live Dashboard and Views
- Minor bug fixes
This release can be downloaded here.
Ganglia 3.3.7 released
Posted by Bernard Li in Announcements, Releases on May 8, 2012
The Ganglia team is pleased to announce the release of 3.3.7. The following issues have been fixed in gmond:
- BUG100: Fails to start in Solaris containers
- Fails to start when no address on the network interface (added retry_bind parameter)
- BUG321: Fails to start when Solaris CPU is in FAILED state (segmentation fault)
The release can be immediately downloaded here.
Ganglia 3.3.6 released
Posted by Bernard Li in Announcements, Releases on April 19, 2012
The Ganglia Development Team is happy to announce the release of Ganglia 3.3.6. This release fixes the following bug:
BUG327: memory leak when receive channel is not configured or not hearing any data
Ganglia 3.3.5 released
Posted by Bernard Li in Announcements, Releases on April 5, 2012
The Ganglia Development Team is happy to announce the release of Ganglia 3.3.5. This is mainly a bugfix release for 3.3.1 and all users of the 3.3.x series are encouraged to upgrade.
For more details regarding this release, please refer to the Release Notes. Downloads are available at SourceForge.
Work is already under way for the next release, please stay tuned for upcoming enhancements to the project!
