Monitoring clusters and Grids since the year 2000

Ganglia Web 3.5.6 Released

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

Ganglia Web 3.5.1 Release - Security Advisory

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 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

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 [caption id=”attachment_546” align=”alignnone” width=”583” caption=”Timeshifted load one average”]Timeshift load one average[/caption] whereas graph below displays data from a week ago overlaid over this weeks data [caption id=”attachment_545” align=”alignnone” width=”583” caption=”Timeshift overlay CPU user”]Timeshift overlay CPU user[/caption] Preliminary support for this feature has already landed in the trunk of our Ganglia Web repository 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

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

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

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

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!