cluster report not displayed

Bug #1822048 reported by Paul Jähne on 2019-03-28
20
This bug affects 3 people
Affects Status Importance Assigned to Milestone
ganglia-web (Ubuntu)
Undecided
Unassigned

Bug Description

When you open the ganglia webfrontend in a browser there is nothing displayed in the cluster report. The host views work. There should be an overview of the cluster.

/var/log/apache2/error.log:
PHP Fatal error: Uncaught Error: [] operator not supported for strings in /usr/share/ganglia-webfrontend/cluster_view.php:34\nStack trace:\n#0 /usr/share/ganglia-webfrontend/cluster_view.php(757): get_picker_metrics(Array, Array, '/usr/share/gang...', 'rrdtool')\n#1 /usr/share/ganglia-webfrontend/index.php(51): include_once('/usr/share/gang...')\n#2 {main}\n thrown in /usr/share/ganglia-webfrontend/cluster_view.php on line 34, referer: https://monitoring/ganglia/

Description: Ubuntu 18.04.2 LTS
Release: 18.04
ganglia-webfrontend:
  Installed: 3.6.1-3
  Candidate: 3.6.1-3
  Version table:
 *** 3.6.1-3 500
        500 http://de.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        500 http://de.archive.ubuntu.com/ubuntu bionic/universe i386 Packages
        100 /var/lib/dpkg/status

Paul Jähne (sethosii) wrote :

Removing the array operator seems to fix the problem.

The attachment "cluster_view.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

tags: added: patch
Paul Jähne (sethosii) wrote :

The previous patch had a problem on updating (and probably for multiple clusters). This one doesn't and this is what is in the upstream repo: https://github.com/ganglia/ganglia-web/blob/master/cluster_view.php#L25.

Martin Gabelmann (m-gabelmann) wrote :

Can confirm, applying the upstream patch fixes it. So, updating to the latest ganglia-web version would be nice.

Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in ganglia-web (Ubuntu):
status: New → Confirmed
Rene Meier (meier.rene) wrote :

I have the same issue and the upstream patch fixes it.

trautenberg (trautenberg) wrote :

I had the same problem. The upstream patch fixes it just partially. The view is not the way it should be.

trautenberg (trautenberg) wrote :

The problem was finally easy to be fixed. As stated above, the problem is in cluster_view.php, line34. Just going to line 26 and substituting

  $context_metrics = "";

with

  $context_metrics = array();

fixes the whole problem! The solution was found at https://github.com/ganglia/ganglia-web/issues/324.

Sam Morrison (sorrison) wrote :

The affects Ubuntu 20.04 too

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